June 2001 - openSUSE Edu - openSUSE Mailing Lists

Re: [suse-linux-uk-schools] Meeting yesterday and welcome to new members of the list
by Philip Hands 07 Jul '03

07 Jul '03

Roger Whittaker <roger(a)suse-linux.co.uk> writes: > I've just subscribed various people to the list - please post a > message to say hello and introduce yourselves. Hi, If you were at the meeting, I was wearing a Debian t-shirt (with a red swirl logo on it) --- there's a photo at the top of this article, where I'm wearing similar stuff (except for the penguin ;-) http://www.linuxuser.co.uk/articles/issue6/lu6-Editorial-A_patently_bad_ide… I'm a Debian GNU/Linux developer, and run the UK Debian mirror, and am responsible for producing the Debian official CD images: http://www.uk.debian.org/ http://cdimage.debian.org/ I have only a peripheral interest in educational matters, in that I've been frustrated in the past in my efforts to provide free computers (which were otherwise destined for a skip), but I can certainly contribute on a technical side, and having been involved in Debian (which is completely voluntary, like OSIE is expected to be) since 1996 I may be able to make some suggestions about how to ``organise'' such a thing. For those of you who've not come across Debian before, we're a world-wide voluntary organisation (read, chaotic jumble of mailing lists) that puts together a Linux distribution (and soon a HURD distribution) and gives it away. Debian doesn't pay people to do this, and doesn't sell what it produces, and in most legal senses doesn't really exist (i.e. the machines in the mirror network mostly belong to people like me, rather than to Debian, and the bandwidth is donated rather than paid for). This probably gives a pretty good feel for what Debian is all about: http://www.uk.debian.org/social_contract which you will notice leads into the The Debian Free Software Guidelines (DFSG), which is where the Open Source Definition came from. My internet machine, that hosts the Debian UK mirror, may be of use to OSIE, since it has about 30GB of spare disk, and a 20Mbit/s connection at a well connected ISP. This machine could act as either a primary host or mirror site for the web site, and could do DNS secondarying etc. as well. Something I'd be interested in working on (although perhaps a SuSE list is not the right place to spend too much time discussing this ;-) would be producing Debian CD images, tuned to the needs of educational users. Debian has accumulated some funds in the UK, and have been looking for a worthwhile cause to spend them on (we never really need to pay for anything that actually makes Debian work, so don't have much use for money), so we could probably afford to have a few thousand CDs pressed, and send them out to schools that are interested. Cheers, Phil. -- Say no to software patents! http://petition.eurolinux.org/ Philip Hands. +44 (0)20 7744 6244 philip.hands(a)uk.alcove.com Alcove UK --- Liberating Software --- http://www.alcove.com/ http://www.hands.com/ phil(a)hands.com http://www.uk.debian.org/

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RE: [suse-linux-uk-schools] network design
by Grainge, Derek 04 Jul '01

04 Jul '01

> Can anyone point me to some good reference material on > network design? > Alternatively, thoughts on the matter are most welcome! I don't know what precise grade of cabling you have installed, nor which apps, but if your main switch works at 100 M, you may have a bottleneck. We have done things a bit differently as we have lots of separate buildings, we have fibre running at 1 Gb, and switches within buildings providing 100/10. Very little cat 5 at the server end. If you use Office applications and store files on the network; if you load bloatware from a server, if you allow media on the network, I think 100 M will not be enough bandwidth. If the servers are connected to the main switch at 1 Gb, the fibre at 1 Gb and the cat 5 at 10/100 for stations, it'll probably work. 1 Gig switch modules still cost serious money compared with 10/100. You can segment network traffic by using departmental switches, so if Mod Lang want media onto their stations, none of that will hit the main switch at all. I assume that's one reason why you're talking about a server for them specifically. Their switch would logically reside at the departmental end of the fibre segment, along with their server. If configured appropriately, no-one outside Mod Land need know that their server is there. I read the comment about SAMBA. It's pretty good at looking like an NT/2000 server but it doesn't do everything a pukka Microsoft server will. I guess if you are installing a specific product the suppliers may only wish to support it if it's on the correct platform? Do you have money to get a consultant in for a day? I would REALLY recommend it. -- ******************************************************************************** All mail sent and received may be examined to prevent transmission of inappropriate attachments and certain obscenities. Wellington College does not accept responsibility for email contents. Problems to postmaster(a)wellington-college.berks.sch.uk. ********************************************************************************

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network design
by Phil Driscoll 02 Jul '01

02 Jul '01

Hi Can anyone point me to some good reference material on network design? Alternatively, thoughts on the matter are most welcome! The story so far (approximately) is that we have about 200 network points wired with CAT 5 most of which come through to racks in the server room, although a couple of remote areas (language lab and D&T dept.) have their own racks with fibre to the server room. Broadband (well a 2Mb circuit anyway) will arrive at the school RSN. Of the 200ish computers about 50 are Acorn on 10M network cards and the rest are PCs on 100M cards. There are essentially 5 IT suites including the language lab accounting for about 3/4 of the machines, the remainder are in small groups (1 to 5ish) in classrooms. I hope that we can persuade the powers that be to let us have the majority of the PCs running Linux, although a language lab and a 'success maker' lab will have to run Windoze. You may remember from an earlier posting that we plan to have one Linux server for each year group which will handle pupil storage and login. A further machine will be a proxy, and separate NT/2000 servers are required for the language lab and success maker room. What yeargroup is using what set of machines at a given time can be considered as random for the purpose of this exercise. So the issues for us to resolve (since the wiring is already in and will not be changed) are things like switch configurations, where to logically site the servers and so on. Cheers -- Phil Driscoll

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Linux advertising
by Paul Sutton 30 Jun '01

30 Jun '01

Hi I am not sure if this is the right place for this but I found a place which does the adverts for the backs of car park tickets, www.adverticket.com what I was thinking was that someone like suse, red hat could advertise on the backs of these as the rates seem very good. something like £12 for 1000 tickets (don't quot e me on this, the details are on the site). I mentioned it on my local user group mailing list and they seem to thinks it's a good idea, perhaps someone on this mailing list is working for suse, or knows who I can e-mail at the promotion departments of suse, redhat etc could get back to me and I will suggest it. Thanks Paul Sutton

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VMware
by John Phelan 30 Jun '01

30 Jun '01

Hello to all, can anyone advise where I can get a copy of VM ware to run MS programs on a Linux box? I just need an evaluation copy for the time being- VMware's site wants money up front. John Phelan. ICT Admin @ John Kelly Technology College. http://uk2.net

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Hi, a new user
by Paul Sutton 29 Jun '01

29 Jun '01

>From Paul Sutton, Hi I decided to join the group as I am interested in Linux and it's use in schools, I am currently a classroom assistant and use Linux at home currently this is Red Hat 7.1 on an AMD, so far it works ok, I have a dual boot system. When I find the time I am slowly learning c and hopefully soon shell scripting which will probably be more useful. my website is at www.psutton.freeservers.com and has a few education links and some Linux stuff on there which I have written. Thanks, I hope I can be of some use to the group. P Sutton

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RE: [suse-linux-uk-schools] Detecting packet sniffers
by Simon Wood 29 Jun '01

29 Jun '01

Just a couple of things to note/think about. 1). Packet sniffers will be undetectable if done 'properly' (i.e. external network interface with TX wires cut). 2). If you can afford it, you're probably best using switches rather than hubs. These mean that the info wanted to be sniffed is not present on all strands of the network. This of course will improve you network's performance as a side-effect ;-) 3). Attempt to remove the value of sniffing data by using encrypted communications were possible, such as ssh rather than telnet. 4). There is some value (for sniffers) to not go into promiscuous mode and just sniff packets for the 'local' machine. Simon Wood

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Re: [suse-linux-uk-schools] Detecting packet sniffers
by kevin.taylor＠powerconv.alstom.com 29 Jun '01

29 Jun '01

> Is there any way to detect (from a Linux box) if someone is > packet sniffing on a network. Yes, as long as you can hack together raw packets (or have some tools that can). There are some details in the 'packet sniffing FAQ' - I can't give you a URL as our proxy will not let me see it - it thinks I am hacking ... :-( The essence of it is that you have to send out packets that the machine shouldn't usually be able to see, but because it is running in 'promiscuous' mode, and seeing all packets on the network, it responds. Google should find it for you though. Kevin.

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Detecting packet sniffers
by Marcus Birkin 29 Jun '01

29 Jun '01

Is there any way to detect (from a Linux box) if someone is packet sniffing on a network. Thanks Marcus Birkin (Assistant Technician and Mail Administrator) - Arts In Education Centre College St

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VM ware.
by John Phelan 28 Jun '01

28 Jun '01

http://uk2.net

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Re: [suse-linux-uk-schools] dos2unix, error messages...why???
by n6tadam 28 Jun '01

28 Jun '01

Hello Damian, Thankyou ever so much for that perl script :-). I shall test it on my laptop. I had written a similar utility in sed and awk, but it looks as though your perl one is much quicker. I really should start programming in perl again. Thanks Again, Thomas Adam Linux Co-ordinator at The Purbeck School (Network Support) Purbeck School, WAREHAM, Dorset, www.purbeck.dorset.sch.uk ----- Original Message ----- From: Damian Counsell <counsell(a)icr.ac.uk> To: SUSE <suse-linux-uk-schools(a)suse.com> Sent: Thursday, June 28, 2001 1:53 PM Subject: Re: [suse-linux-uk-schools] dos2unix, error messages...why??? > Thomas! > > > Is this any use? > > #! /usr/local/bin/perl > > # dos2unix.pl by David Efflandt <efflandt(a)xnet.com> > # Modification of script from "Learning perl" p.353 > # O'Reilly & Associates, Inc. > # > # Run after transfering text files from DOS to UNIX system. > # Strips carriage returns from DOS files for use UNIX. > # Transfers file permissions to new file (except suid bit). > # > # Usage:\tdos2unix.pl FILELIST > # where FILELIST = one or more filenames > # > # If you edit this file in DOS you can run it on itself by typing: > # perl dos2unix.pl dos2unix.pl > # > # Modify variables below for other search and replace functions. > > $find = "\r"; # find this > $sub = undef; # substitute with this > $rm_bak = 1; # remove old file after conversion: 0 = no, 1 = yes > > while (<>) { > if ($ARGV ne $oldargv) { > ($dev,$ino,$mode,$nlink,$uid,$gid) = stat($ARGV); > $backup = $ARGV . '.bak'; > rename($ARGV, $backup); > open (ARGVOUT, ">$ARGV"); > chmod $mode, $ARGV; > select(ARGVOUT); > $oldargv = $ARGV; > } > s/$find/$sub/; > } continue { > print; > if (eof) { > print STDOUT "Converted: $oldargv\n"; > unlink $backup if $rm_bak; > } > } > select(STDOUT); > > > or this? > > > #!/bin/sh > > es=1 > if [ $# -eq 0 ] ; then > exec tr -d '\015\032' > elif [ ! -f "$1" ] ; then > echo "Not found: $1" 1>&2 > else > for f in "$@" ; do > if tr -d '\015\032' < "$f" > "$f.tmp" ; then > if cmp "$f" "$f.tmp" > /dev/null ; then > rm -f "$f.tmp" > else > touch -r "$f" "$f.tmp" > if mv "$f" "$f.bak" ; then > if mv "$f.tmp" "$f" ; then > rm -f "$f.bak" > es=$? > echo " converted $f" > else > rm -f "$f.tmp" > fi > else > rm -f "$f.tmp" > fi > fi > else > rm -f "$f.tmp" > fi > done > fi > > exit $es > > > all the best > > Damian > > > n6tadam wrote: > > > Dear List, > > > > I am trying to use 'dos2unix', but I am finding that each time I try it, I > > get the following error message: > > > > recode: /doc.txt failed: Ambiguous output in CR-LF..data > > > > Does anyone know what causes this, and how I fix it. > > > > In fact, the command 'dos2unix', is a shell alias, for the following: > > > > 'recode ibmpc..lat1' > > > > This is doing my head in!! I am very tempted to write a sed script instead, > > but I thought I'd ask the list first!! > > > > Regards, > > > > Thomas Adam > > > > Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. > > > > If you have any complaints about this message please reply to: > > office(a)purbeck.dorset.sch.uk > > > > The Purbeck School E-Mail server running: > > users.purbeck.dorset.sch.uk > > > > -- > > To unsubscribe, e-mail: suse-linux-uk-schools-unsubscribe(a)suse.com > > For additional commands, e-mail: suse-linux-uk-schools-help(a)suse.com > > -- > Damian COUNSELL http://www.icr.ac.uk/cmb/bioinformatics/ > CMB Bioinformatics phone: +44 020 7352 8133 x5226 > Institute of Cancer Research direct: +44 020 7878 3850 > London SW3 6JB fax: +44 020 7351 3325 > > > > > -- > To unsubscribe, e-mail: suse-linux-uk-schools-unsubscribe(a)suse.com > For additional commands, e-mail: suse-linux-uk-schools-help(a)suse.com > > > Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. If you have any complaints about this message please reply to: office(a)purbeck.dorset.sch.uk The Purbeck School E-Mail server running: users.purbeck.dorset.sch.uk

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FWD: Oracle
by ptaylor 25 Jun '01

25 Jun '01

>===== Original Message From "Paul Taylor" <ptaylor(a)uklinux.net> ===== -----Original Message----- From: Paul Taylor [mailto:ptaylor@uklinux.net] Sent: 10 June 2001 12:16 To: SuSE Forum Subject: Oracle Hi all: My school is becoming 1 of 4 Oracle Academies in the UK and although I am not directly involved in teaching Oracle, I would like to get involved on the periphery. As such, I sent off for a copy of 9i for Linux and was sent a copy last week. However, when I try to install it, it comes up with a message that it can't run with the java virtual machine or some such and creates a segmentation fault. There is no manual with it or help that I can see and I wondered if anyone had a similar experience? Paul Ps I hope the enclosed might help.

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dos2unix, error messages...why???
by n6tadam 22 Jun '01

22 Jun '01

Dear List, I am trying to use 'dos2unix', but I am finding that each time I try it, I get the following error message: recode: /doc.txt failed: Ambiguous output in CR-LF..data Does anyone know what causes this, and how I fix it. In fact, the command 'dos2unix', is a shell alias, for the following: 'recode ibmpc..lat1' This is doing my head in!! I am very tempted to write a sed script instead, but I thought I'd ask the list first!! Regards, Thomas Adam Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. If you have any complaints about this message please reply to: office(a)purbeck.dorset.sch.uk The Purbeck School E-Mail server running: users.purbeck.dorset.sch.uk

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Re: [suse-linux-uk-schools] Gif --> Ascii convert
by kevin.taylor＠powerconv.alstom.com 20 Jun '01

20 Jun '01

> I have tried looking at the following website, but the URL is no > longer available: Search for gif2ascii using google - it has a cached version of the page you mentioned (although it is just a directory listing) If you want some code, search for gif2ascii.c Kevin.

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MGR (an alternative to X)
by n6tadam 19 Jun '01

19 Jun '01

Dear List, Although this may sound strange, I am/have been trying to compile the MGR window system. This was originlally written before X was. I have been trying to compile it, but all I get is a string of errors. I have all the necessary compiler files (including make, gcc, headerfiles, etc). The errors that I get, I shouldn't, as all the files exsist. I am wondering if anyone else has tried compiling MGR, or has been successful. For those of you who are interested, the files (in .tgz format), are available here: http://linux.about.com/compute/linux/library/metalab/blmeta_apps_MGR.htm Thanks in Anticipation, Regards, Thomas Adam Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. If you have any complaints about this message please reply to: office(a)purbeck.dorset.sch.uk The Purbeck School E-Mail server running: users.purbeck.dorset.sch.uk

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Welcome Dave Turnbull
by n6tadam 19 Jun '01

19 Jun '01

Welcome to the List Dave Turnbull :-) Thomas Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. If you have any complaints about this message please reply to: office(a)purbeck.dorset.sch.uk The Purbeck School E-Mail server running: users.purbeck.dorset.sch.uk

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Gif --> Ascii convert
by n6tadam 18 Jun '01

18 Jun '01

Dear Lists, Does anybody know where I can get hold of a "gif2ascii" converter, for my Linux Box?? I have tried looking at the following website, but the URL is no longer available: http://www.lug.ro/~vang/ascii-art/gif2ascii/ Has anyone got any other suggestions?? Regards, Thomas Adam, a student (in the VIth form) Linux Co-ordinator for The Purbeck School (Network Support) Wareham, Dorset, UK Please note that the content of this message is confidential between the original sender and the intended recipient(s) of the message. If you are not an intended recipient and/or have received this message in error, kindly disregard the content of the message and return it to the original sender. If you have any complaints about this message please reply to: office(a)purbeck.dorset.sch.uk The Purbeck School E-Mail server running: users.purbeck.dorset.sch.uk

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More than 64Mb memory and linux
by npauli 18 Jun '01

18 Jun '01

Dear All, Late last week I installed an extra 128Mb memory on the linux box I use to run squid to take it up to 192Mb. Disaster!!! Over the weekend the server crashed. I couldn't get it to reboot sensibly. When I did get it going something was steadily grabbing more and more memory and I couldn't even start up a terminal to look for the process. I tried to reinstall Mandrake 7.2 and then Redhat 6.2 and with both the installs just locked up or crashed. So I've taken the new memory out and am reinstalling Mandrake 7.2 and this time it seems to be working. Does anyone know where the problem might be? On each install the all the memory was detected. The memory was of the right sort but was fairly cheap stuff (major on 3rd - whatever that means) from www.redstore.com . For a while the added memory worked well and made an appreciable difference to the machine - but now... Should I upgrade to the 2.4 kernel? Thanks for any advice anyone can offer on this. Nigel Pauli St. John's School, Northwood

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Re: [suse-linux-uk-schools] More than 64Mb memory and linux
by Paul Munro 18 Jun '01

18 Jun '01

npauli wrote on 17/6/01 20:29: >Dear All, > >Late last week I installed an >extra 128Mb memory on >the linux box I use to run >squid to take it up to 192Mb. > >Disaster!!! > >Over the weekend the >server crashed. I couldn't get >it to reboot sensibly. When I >did get it going something >was steadily grabbing more >and more memory and I >couldn't even start up a >terminal to look for the >process. > >I tried to reinstall Mandrake >7.2 and then Redhat 6.2 and >with both the installs just >locked up or crashed. > >So I've taken the new >memory out and am >reinstalling Mandrake 7.2 >and this time it seems to be >working. > >Does anyone know where >the problem might be? On >each install the all the >memory was detected. The >memory was of the right >sort but was fairly cheap >stuff (major on 3rd - >whatever that means) from >www.redstore.com . For a >while the added memory >worked well and made an >appreciable difference to >the machine - but now... > >Should I upgrade to the 2.4 >kernel? > >Thanks for any advice >anyone can offer on this. > >Nigel Pauli >St. John's School, Northwood > > >-- hi there. sounds like the new ram perhaps isn't the right speed or sync.the giveaway is when you said that everything works ok after taking the memory dimm out of your system. you could just have bought a 'dudd' and so it may be worth swapping it for a new one or cutting your losses and buying a better type like kingston or even crucial- i use them all the time with mixed variant memory with no problems at all. as for the kernel upgrade; i'm personally not convinced yet with the 2.4 series kernels. up tp 2.4.3 i've had nothing but trouble with overuse of swap space and failure to release swap space..stay with the 2.2.18 or 19 kernel for now unless they have fixed the problem whilst i've been away ;-/ hope that helps a little. paul. >To unsubscribe, e-mail: >suse-linux-uk-schools-unsub >scribe(a)suse.com For >additional commands, >e-mail: >suse-linux-uk-schools-help@ >suse.com

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Re: [suse-linux-uk-schools] More than 64Mb memory and linux
by Edgehill e-mail service 18 Jun '01

18 Jun '01

We have had this from 3rd party memory suppliers (on Linux & Windows) - the problem seems to be that the memory isn't properly burned-in or soak-tested. The chips are in spec when they go out the door, but a few hours run-time, and they have to be downgraded. I suggest you try running them at 100MHz, then 66MHz (and even on a 33MHz bus, if you can) - just to test to see if they are out of spec or completely failing. The rule for memory, I'm afraid, is "low cost, low quality". (The generic memory supplied by Insight (our main supplier) is fine.) Regards, Paul. ---------- > From: npauli <npauli(a)st-johns.org.uk> > To: suse-linux-uk-schools(a)suse.com > Subject: [suse-linux-uk-schools] More than 64Mb memory and linux > Date: 17 June 2001 20:16 > > Dear All, > > Late last week I installed an extra 128Mb memory on the linux box I use to > run squid to take it up to 192Mb. > > Disaster!!! > > Over the weekend the server crashed. I couldn't get it to reboot sensibly. > When I did get it going something was steadily grabbing more and more memory > and I couldn't even start up a terminal to look for the process. > > I tried to reinstall Mandrake 7.2 and then Redhat 6.2 and with both the > installs just locked up or crashed. > > So I've taken the new memory out and am reinstalling Mandrake 7.2 and this > time it seems to be working. > > Does anyone know where the problem might be? On each install the all the > memory was detected. The memory was of the right sort but was fairly cheap > stuff (major on 3rd - whatever that means) from www.redstore.com . For a > while the added memory worked well and made an appreciable difference to the > machine - but now... > > Should I upgrade to the 2.4 kernel? > > Thanks for any advice anyone can offer on this. > > Nigel Pauli > St. John's School, Northwood > > > -- > To unsubscribe, e-mail: suse-linux-uk-schools-unsubscribe(a)suse.com > For additional commands, e-mail: suse-linux-uk-schools-help(a)suse.com > >

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Intranet
by Dave Williams 15 Jun '01

15 Jun '01

Thanks to Phil for his info on IGear logins and PHP. I don't understand this yet - nothing new in that - but I'm not going to look into it until I've solved a more fundamental problem. This is hopefully something very simple - I've set up Squid so that if I dial out using wvdial and a modem, Squid can proxy/cache relevant internet files and clients can access them - so far so good. But if I connect through the city proxy using Netscape on the machine with Squid how does Squid find out where to get the Internet files. I can surf with Netscape on the Squid machine via the LEA proxy but I can't connect to a working version of Squid from the clients. I've searched through squid.conf without success. Obviously wvdial makes some sort of announcement which Squid detects and then uses. Any help appreciated. Dave

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installing IP settings under windows
by James & Cybèle 14 Jun '01

14 Jun '01

Thanks to the good advice of this list I've managed to get the office netowork to go out through SQUID.....but only on some machines. On the others I can't add TCP/IP that is tied to the network card....anyideas how I do it Thanks James Carter SOuth Lee School

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Page the Oracle
by ptaylor 13 Jun '01

13 Jun '01

Hi all: Has anyone (Roger?) tried to install oracle 9i on a SuSE box? I received a copy of 9i (time locked I assume) with no documentation and keep getting segmentation errors when I try to load it as pe the instructions. It seems to be clashing with the Java running on the machine?? I triedto upload screen shotsand text files as a guide to what error messages I am getting but they did not go through. Anyone know of any how-tos? Paul

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Intranet
by Dave Williams 13 Jun '01

13 Jun '01

Thanks for all the really useful advice. The main problem I have with squid is that I have not found a way to connect it to our LEA proxy which uses Igear login software. The LEA proxy is provided "free" via an ISDN line. I have asked about this before - anyone know how this can be done? Thanks again Dave

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RE: [suse-linux-uk-schools] Intranet
by Grainge, Derek 12 Jun '01

12 Jun '01

>> 1) Is it legitimate to "cache" pages from websites locally on >> an Intranet server? > A quick question - do you mean cache or mirror? Yes, we too thought of mirroring certain commonly used sites. However it's an administrator's job, and administrators are usually busy people. The advantage of caching is that it's an invisible process; you don't set up anything special, but recently used pages will be delivered to anyone who wants them. Therefore we looked at mirroring and decided to forget it. I suggest you whack in a proxy and give it a lot of space to put its stuff in. Should be able to run proxy, NAT and firewall on one machine if you're pushed for space. -- ******************************************************************************** All mail sent and received may be examined to prevent transmission of inappropriate attachments and certain obscenities. Wellington College does not accept responsibility for email contents. Problems to postmaster(a)wellington-college.berks.sch.uk. ********************************************************************************

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Re: [suse-linux-uk-schools] Intranet
by kevin.taylor＠powerconv.alstom.com 12 Jun '01

12 Jun '01

> 1) Is it legitimate to "cache" pages from websites locally on > an Intranet server? A quick question - do you mean cache or mirror? Caching is a way of temporarily storing pages that are regularly viewed, by checking the modification times of the stored pages with the originals to see if the copy needs updating. Eventually, cached versions time out. Once set up this is an automatic process, but pages are only placed in the cache if someone actually looks at them (and only single pages are stored, not whole sites ... unless someone looks at every page on a site). Mirroring is when you 'snapshot' a whole site, in order to obtain a local copy of that site, which people can use without connecting to the Internet at all. This is usually a person-driven activity - ie the admin performs a mirror from time to time of the sites in question. People have already responded about caching (squid and apache can run as a caching proxy server). Mirroring would typically involve things like wget, or even lynx ... Kevin.

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Intranet
by Dave Williams 11 Jun '01

11 Jun '01

Hello all I'm trying to set up an Intranet. I've got Apache running on a server and it delivers html pages to the clients with no apparent problems. However, the long term aim was to use it to deliver Internet content which might otherwise be unavailable/slow. 1) Is it legitimate to "cache" pages from websites locally on an Intranet server? 2) Can anyone recommend software which will capture said pages. 3) Will the software enable all content to be captured ie including interactive quiz type pages. I already use the excellent WebGet (Risc OS) by Joseph Heenan but that does not seem to capture all types of content. Thanks Dave Williams

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Scrubbing hard drives clean
by npauli 11 Jun '01

11 Jun '01

Dear All, A parent wants to give us some old machines from their accountancy practice. What I'm looking for is a product, device or procedure that will remove all data from their hard drives. Any suggestions? Thanks, Nigel Nigel Pauli St. John's School, Northwood

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RE: [suse-linux-uk-schools] Scrubbing hard drives clean
by Grainge, Derek 11 Jun '01

11 Jun '01

Fdisk doesn't scrub unfortunately. Anyone with technical knowhow can still see the files. Ditto when files are deleted, ditto when a hard drive is reformatted (sometimes). You need a program which will wipe free space. Do the machines have Windows on them or linux? Lots of stuff for windows. It's a long time since I reformatted a linux drive - I seem to remember that in some versions that when you create a linux partition it scrubs the old contents? -----Original Message----- From: Royal Latin School [mailto:rbloomfield@royallatin.schoolzone.co.uk] Sent: 11 June 2001 17:01 To: npauli; Suse-Linux List Subject: Re: [suse-linux-uk-schools] Scrubbing hard drives clean fdisk? :-) There are a couple of commercial Win based disk scrubbing tools (paranoia level), such as those found in Norton Utilities, and PGP...... PGP is available freeware. Regards, Robb Bloomfield -----BEGIN PGP SIGNATURE----- iQA/AwUBOnqp7pLoTHZaFLiuEQKXegCfZBI/ZqaYLSuNPqyYb3O/+AQaoPMAmwZ3 wL2zJ3u67tXeitxrenFk2XgZ =UMho -----END PGP SIGNATURE----- This e-mail is intended for the addressee shown. It contains information that is confidential and protected from disclosure. Any review, dissemination or use of this transmission or its contents by persons or unauthorized employees of the intended organisations is strictly prohibited. The contents of this email do not necessarily represent the views or policies of the Royal Latin School, it's employees or students. -- To unsubscribe, e-mail: suse-linux-uk-schools-unsubscribe(a)suse.com For additional commands, e-mail: suse-linux-uk-schools-help(a)suse.com -- ******************************************************************************** All mail sent and received may be examined to prevent transmission of inappropriate attachments and certain obscenities. Wellington College does not accept responsibility for email contents. Problems to postmaster(a)wellington-college.berks.sch.uk. ********************************************************************************

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DPT SCSI Card
by Glenn Cameron 11 Jun '01

11 Jun '01

A year and a half ago we built one of our old RM FX servers as a Linux server using Suse 6.3 and running squid. It's been sitting in the corner doing its job without a problem and we are very happy with it. We would like to do the same at our sister school who have the a virtually identical server, however I can't remember how we managed to get our DPT 2024 SCSI card to be recognised. Searching the SuSE hardware database doesn't seem to help - can someone point me in the right direction? I'm guessing other RM sites will have done the same thing, and obviously we did but I just can't remember what we did - and going into YaST doesn't seem to tell me what we did either! Suggestions much appreciated. Best Regards, Glenn Cameron King Henry VIII School, Coventry

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Squid Logfiles <> NT User names
by Gary Parr 11 Jun '01

11 Jun '01

Hi I have Squid running, and was wondering if its possible to get the access.log files to rather than log the machine name, log the NT user name? I have Squid running on Linux at work, but am also testing it on NT at home... Any ideas Gary _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

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Emailing school newsletters
by npauli 07 Jun '01

07 Jun '01

Dear All, Like every other school we get through a lot of trees sending newsletters home to parents. Of course, most don't get home but end up as a layer of compost in the bottom of desks, etc. What I would like to do is to be able to give parents the option of receiving newsletters via email. What would people suggest to set up such a system? Would I need a list organiser like Mailman? Thanks, Nigel Nigel Pauli St. John's School, Northwood

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Newby FAQ?
by john lister 07 Jun '01

07 Jun '01

Hi Folks, Were just starting out here setting up a Suse 7.1 Linux Box for NAT and Proxy Services, does anyone know of an FAQ out there to do it or just where I should start looking? Johnny

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Sendmail nearly there but...
by Sisulu, Seku 06 Jun '01

06 Jun '01

Thanks Gary Ive been using sendmail to mail a user with an account on my SMTP server. The user does not have a password on my LINUX box, mail to users on the same host works ok. Should i need aliuses for all users or passwords for all users on my LINUX box, i hope not. Do i need to customise my sendmail.cf file more?Should i use my ISPs DNS domain in my sendmail.cw file? Does this smarthost line still sound possible? The DNS server is working better now i took the server host name of the MX record (NT Optional field) and points to the ISP's DNS with the relevent MX config. Getting there but so near but so far! Hi Seku On Tuesday 05 June 2001 11:33 am, Sisulu, Seku wrote: > Thanks for your prompt reply! > I have my domain entry in my sendmail.cw file however, and i havent > even started testing the cgi script at the moment, im just testing > sendmail. If i email (form the root user) an internal address, the > address comes up with the message "user not known". Sendmail to an What do you mean by internal address? on the same host, or on your network? This sounds like the user you're sending to doesn't exist and doesn't have an alias entry. > external address will search through the domains DNS servers and then > sais "Defered:Network unreachable". Interestingly (or maybe This sounds more like a network config problem - sendmail can't find a route to the remote host. Have you got your static routes and defaultroute set? Can you traceroute to the host pointed to by the MX > uninterestingly!) an nslookup on my domins mx record just brings up > my pdc ip address, if i lookup my pdc.domainname i get all the mx > record info. Lookups on remote DNS including my ISP's all seem ok. > Before my bash prompt i have "root@LinuxSrv" should this be > "root@domain name" to work. I suspect my DNS config or my sendmail > config now. Is this box your main mail relay, or are you using this to send mail only from this host? If you have another mail server, did you try setting the smarthost line. > > Sorry to go on but i need this sorted! The idea behind it all is to > use "Hot Potatoes" a free (to Schools, check it out! > www.halfbakedsoftware.com ) windows package that can produce > interactive media web forms and can email results to the teacher. > If you could give us some more details about your network topology we may be able to provice more info. > Thanks > Seku Sisulu > Senior ICT Technician > Highgate Wood School > > > firstly, it will not have anything to do with Samba. Mail (SMTP), is > a purely IP based protocol and does not interact with Samba. > > What you need to do is find out if the problem is > with the CGI, or with sendmail. The easiest way to do this is to log > in using telnet/ssh etc. and try sending a message using mail. Next, > try sending a message using sendmail, by emulating the cgi (probably > by feeding a message to sendmail using the '-t' and maybe even the > '-f <email_addr>' parameters. Finally, re-test your cgi and then look > at the apache and sendmail logs. > > If all else fails, (and asuming you're using perl), > try the Mail::Sender module available from CPAN. It completely > bypasses sendmail and send the message itself. > > Having said that, it probably is your sendmail config > that is the problem. You probably haven't told sendmail how to > handle mail not for the host it's on. > > If you want sendmail to handle mail for other domains > besides the one it's on, then you need to add them to the > /etc/sendmail.cw. For instance if you want it to handle > network.co.uk as well as host.network.co.uk you need to add > network.co.uk to the file. > > Alternatively, add a 'DS' line to /etc/sendmail.cf. > e.g. > > DSmail.network.co.uk > > This tells sendmail to send all mail not destined for > itself (sendmail.cw) to a Smart host who will then forward the > message to the destination. > > Gary > > On Monday 04 June 2001 2:33 pm, Sisulu, Seku wrote: > > Hi i am a newcomer,althogh i have been listening in > > for a while now. I want to run the formmail cgi > > script on my apache server so i can email on an > > intranet page. I need sendmail to send the emails > > to my smtp server (IMAIL6). I have set up a Linux > > APACHE server that seems to be working fine as an > > internal web server, samba seems to be ok, but.... > > When i test my sendmail cf file all i seem to be > > able to email is users on my computer. > > /usr/sbin/sendmail -v -oQ/tmp -Ctest.cf recipient < > > /dev/null it cannot find users on my domain or > > externaly. > > Sounds like DNS > > but i have an mx table on my NT pdc > > and lookups all look good > > Is it the samba config > > Help > > > > Seku Sisulu > > Senior ICT Technician > > Highgate Wood School ==================================================== If you are offended by the contents of this mailing, please return it to postmaster(a)hws.haringey.sch.uk ==================================================== Highgate Wood School, Montenotte Road, London N8 8RN Visit our school website at http://www.hws.uk.com ====================================================

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Sendmail and DNS
by Sisulu, Seku 05 Jun '01

05 Jun '01

Thanks for your prompt reply! I have my domain entry in my sendmail.cw file however, and i havent even started testing the cgi script at the moment, im just testing sendmail. If i email (form the root user) an internal address, the address comes up with the message "user not known". Sendmail to an external address will search through the domains DNS servers and then sais "Defered:Network unreachable". Interestingly (or maybe uninterestingly!) an nslookup on my domins mx record just brings up my pdc ip address, if i lookup my pdc.domainname i get all the mx record info. Lookups on remote DNS including my ISP's all seem ok. Before my bash prompt i have "root@LinuxSrv" should this be "root@domain name" to work. I suspect my DNS config or my sendmail config now. Sorry to go on but i need this sorted! The idea behind it all is to use "Hot Potatoes" a free (to Schools, check it out! www.halfbakedsoftware.com ) windows package that can produce interactive media web forms and can email results to the teacher. Thanks Seku Sisulu Senior ICT Technician Highgate Wood School firstly, it will not have anything to do with Samba. Mail (SMTP), is a purely IP based protocol and does not interact with Samba. What you need to do is find out if the problem is with the CGI, or with sendmail. The easiest way to do this is to log in using telnet/ssh etc. and try sending a message using mail. Next, try sending a message using sendmail, by emulating the cgi (probably by feeding a message to sendmail using the '-t' and maybe even the '-f <email_addr>' parameters. Finally, re-test your cgi and then look at the apache and sendmail logs. If all else fails, (and asuming you're using perl), try the Mail::Sender module available from CPAN. It completely bypasses sendmail and send the message itself. Having said that, it probably is your sendmail config that is the problem. You probably haven't told sendmail how to handle mail not for the host it's on. If you want sendmail to handle mail for other domains besides the one it's on, then you need to add them to the /etc/sendmail.cw. For instance if you want it to handle network.co.uk as well as host.network.co.uk you need to add network.co.uk to the file. Alternatively, add a 'DS' line to /etc/sendmail.cf. e.g. DSmail.network.co.uk This tells sendmail to send all mail not destined for itself (sendmail.cw) to a Smart host who will then forward the message to the destination. Gary On Monday 04 June 2001 2:33 pm, Sisulu, Seku wrote: > Hi i am a newcomer,althogh i have been listening in for a while now. > I want to run the formmail cgi script on my apache server so i can > email on an intranet page. I need sendmail to send the emails to my > smtp server (IMAIL6). I have set up a Linux APACHE server that seems > to be working fine as an internal web server, samba seems to be ok, > but.... When i test my sendmail cf file all i seem to be able to > email is users on my computer. /usr/sbin/sendmail -v -oQ/tmp > -Ctest.cf recipient < /dev/null it cannot find users on my domain or > externaly. > Sounds like DNS > but i have an mx table on my NT pdc > and lookups all look good > Is it the samba config > Help > > Seku Sisulu > Senior ICT Technician > Highgate Wood School ==================================================== If you are offended by the contents of this mailing, please return it to postmaster(a)hws.haringey.sch.uk ==================================================== Highgate Wood School, Montenotte Road, London N8 8RN Visit our school website at http://www.hws.uk.com ====================================================

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Sendmail to internal smtp server
by Sisulu, Seku 04 Jun '01

04 Jun '01

Hi i am a newcomer,althogh i have been listening in for a while now. I want to run the formmail cgi script on my apache server so i can email on an intranet page. I need sendmail to send the emails to my smtp server (IMAIL6). I have set up a Linux APACHE server that seems to be working fine as an internal web server, samba seems to be ok, but.... When i test my sendmail cf file all i seem to be able to email is users on my computer. /usr/sbin/sendmail -v -oQ/tmp -Ctest.cf recipient < /dev/null it cannot find users on my domain or externaly. Sounds like DNS but i have an mx table on my NT pdc and lookups all look good Is it the samba config Help Seku Sisulu Senior ICT Technician Highgate Wood School ==================================================== If you are offended by the contents of this mailing, please return it to postmaster(a)hws.haringey.sch.uk ==================================================== Highgate Wood School, Montenotte Road, London N8 8RN Visit our school website at http://www.hws.uk.com ====================================================

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Cygwin/XFree86
by Michael Brown 01 Jun '01

01 Jun '01

As you may or may not know, XFree86 has been successfully ported to MS Windows. You can get all the necessary bits to set it up yourselves from http://xfree86.cygwin.com/. Cygwin/XFree86 represents a nice and easy way to start experimenting with Linux thin-client setups, without having to mess around with boot ROMs and all the other minor hassles of approaches such as LTSP. It's really only suitable for *experimenting*, because it is nowhere near as fast as 'native' XF86. I have put together a single Zip file containing all the bits needed to start XF86 on Windows and use it to run applications on a remote Linux/BSD server (a la thin-client). This is significantly smaller than the amount you will end up downloading if you follow the instructions on Cygwin's web site. I have also added a couple of features such as autodetection of the screen size and colour depth (which are missing from the 'raw' release), and some extra diagnostic code. If anyone would be interested in testing this, please let me know and I'll e-mail it to you. If there's enough demand, I'll put it on the web. It should currently be considered as "alpha" quality (i.e. it works for me and it should work elsewhere, but I haven't tested it on a wide variety of machines yet). Note: you will need a working Linux application server on the network, set up to answer to XDMCP broadcast requests. An out-of-the-box Linux Mandrake setup will do this - I expect that other distributions will as well. Michael Brown http://www.fensystems.co.uk/

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