January 2004 - openSUSE Users - openSUSE Mailing Lists

Re: [SLE] Time synch problem
by Carlos E. R. 23 Feb '05

23 Feb '05

El 2003-07-09 a las 13:37, C Hamel escribió: (You forgot to post to the list) > I am afraid I don't even know how to ask a question, at this point, but I'll > make an attempt: Exactly where should this ntp thing be called to set the > clock ...or(/and) by what process? It is a very proper question :-) Well, it depends. There are two ways. If your computer is up all the time, and has a permanent network connection, you can use the ntpd daemon, which polls a set of servers about once a minute, and _very_ slowly adjusts the system clock; it can even note the systematic error or drift, and take that in to account to discipline the system clock. There are many options available for the daemon: see full doc in: http://localhost/usr/share/doc/packages/xntp-doc/html/index.htm Or, you may have a temporary network connection, like I do; I will explain this in some detail. We can adjust the clock to "internet" time, once, sometime after we connect to internet. This, apparently, can be done with the daemon, using some option I don't fully understand. Or we can use ntpdate - a program which is to disappear some time in the future, but that I use, and SuSE uses as well in its own script. For this, we can simply call "/etc/init.d/xntpd ntptimeset" - and assume that when "ntpdate" finally disappears SuSE will adjust the script appropriately ;-) Of course, /etc/ntp.conf has to be configured; at least, it must have a list of servers: server IP_address server name_address This is sufficient for "xntpd ntptimeset" to work; just leave the rest of the config at the default values. If you want to use the daemon, then I'm not the person to ask :-) Ok, so when is the appropriate time to make this time adjust? Well, ideally, during system boot-up, after network connection is established. This is done properly by the service xntpd, if enabled. The SuSE script "/etc/init.d/xntpd start" does first a clock set using ntpdate, if the variable XNTPD_INITIAL_NTPDATE is set to "AUTO". Then, it starts the daemon to keep time synchronized. And, if our network connection is not permanent? Then, the script "/etc/ppp/poll.tcpip", which is called from "/etc/ppp/ip-up", will adjust the clock first thing: assuming we have some servers configured, it will be done every time we connect to internet with the modem. I do it differently, only once every five times, and I also update the hwclock. The danger of this method is that the clock might suddenly go forward or backward a bit (seconds or hours, it depends): not very nice on a *nix system, but we can not avoid it. More details to be aware of: what happens to the hardware or CMOS clock? Well, the script "/etc/init.d/boot.clock" (read it, it is documented) does this sequence of things (using the command "hwclock") before starting system services: - Create if it doesn't exist, the file "/etc/adjtime" - Adjust hardware clock (CMOS) for known drift during the time the computer has been off; this depends on the previous file to work. - Copy CMOS clock (hardware) to system time (CPU and OS maintained). After this, the system goes fully up, and maybe, the clock is adjusted from the internet or by hand (danger!). But (and this is very different than windows) the CPU maintained clock has to be copied back to the CMOS, because the kernel doesn't do it. SuSE does it in the script "/etc/init.d/halt" that copies system time to hardware time just before power off. Me, I prefer to do it just after I adjust to network time, inside "ip-up.local", like this: /usr/sbin/rcxntpd ntptimeset /sbin/hwclock --systohc More things to be aware of: a common mistake is manually adjusting the system clock from kde control center (for example), and not updating the hwclock at the same time: the drift adjust algorithm of hwclock thinks that the CMOS clock is fast or slow by the same amount you adjusted the clock, and the next boot it will adjust the time by several hours... The solution is to delete "/etc/adjtime" and call "/sbin/hwclock --systohc" just then (documented on the SuSE sdb). Well, this has been enough chatter on my part; let's hope I didn't make many mistakes :-) -- Saludos Carlos Robinson

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How to add secondary IP address to a SuSE box?
by joe_pr＠myrealbox.com 16 Sep '04

16 Sep '04

Hello, I am converting one of our Domino servers fro NT4 to SuSE 8.2. Is there any way to add a secondary IP to the network card? I used to have such a setup for the current NT box and eve tried this config with Mandrake but thi sdoes not seem to be possible with YAST2. Any idea anybody? Thanks Josef Prusa

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[SLE] LILO - files
by sander.van.vugt＠azlan.nl 06 Sep '04

06 Sep '04

Hi, I'dd like to know what the following files in the directory /boot are about. Can anyone give me a clue or point me to some documentation? - boot.b - chain.b - map - System.map-2.2.14 - chos.* Thanks in advance, Sander ********************************************************************** Disclaimer This email is confidential and intended solely for the use of the individual to whom it is adressed. Any views or opinions presented are solely those of the author and do do not necessarily represent those of the Azlan Holdings bv and/or subsidairy. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited If you have received this email in error please notify Azlan Holdings MIS Helpdesk by telephone on +31 (0) 79 3443200. ********************************************************************* -- To unsubscribe send e-mail to suse-linux-e-unsubscribe(a)suse.com For additional commands send e-mail to suse-linux-e-help(a)suse.com Also check the FAQ at http://www.suse.com/support/faq

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9.1 unuseably slow
by David Bottrill 02 Sep '04

02 Sep '04

We received a copy of 9.1 today at work and I have installed this on three machines with dissapointing results. The first machine was an IBM Thinkpad R40 with a Centino 1600 CPU. This machine worked fine and the performance was great. The second and third machines were unusable, KDE takes serveral minutes to start, attempting to start YAST for instance will take about a minute for the SU box to appear and then another minute for YAST to load. I get similar results for all applications I have tried, in all instances the system performs like a P100 with very little RAM. The machines that run slowly are both Athlon XP based machines, one being an Athlon XP 2400 with 1GB of DDR RAM on an ECS Elite motherboard. The second machine is an XP2000 with 512MB of PC3200 RAM on a PCChips motherboard. I have applied all the updates with no effect. Any ideas would be appreciated, I've had to switch back to 9.0 as the whole 9.1 experience is unuseable has anybody got any ideas? David -- David Bottrill Registered Linux user number 330730 www.bottrill.org Internet SIP Phone: 1-747-244-2699

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Partition Magic vs. Linux partitioner
by Paul W. Abrahams 17 Aug '04

17 Aug '04

I have a hard drive that works perfectly well under Linux but Partition Magic thinks it's incorrectly formatted. I've heard that there's some disagreement between PowerQuest (the company that wrote PM) and the Linux world over what the correct format of a partition table is; each thinks the other has it wrong. Does anyone on this list know about the disagreement and the best way to get around it? (The SuSE database yields nothing.) Paul Abrahams

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DVD playback...
by Matthew 14 May '04

14 May '04

Good day, Yes there are legal reasons why SuSE cannot have DVD playback of those pesky movies, but what be done? Would it be too expensive for Novell/SuSE to license a codec? Seems like there is a new copyright law in Germany that has made PackMan be more cautious. No one has made a player for Linux that is 100% legal, is it due to expense? Matt

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What DVD burner should I buy?
by Tom Nielsen 07 Apr '04

07 Apr '04

I want to get a DVD burner. Anyone with recommendations? I was thinking of the Sony. Tom -- Tom Nielsen Neuro Logic Systems 805.389.5435 x18 www.neuro-logic.com

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wireless adapter
by Matt Stamm 28 Mar '04

28 Mar '04

Hello, Can anyone recommend a wireless (802.11b) adapter that will work with Suse 8.1. I'm new to wireless. I'm using a Linksys router, which works fine. I checked out the Linksys web site to see if their wireless adapter supports Linux but saw no mention of it on the wireless adpaters. I downloaded the drivers for their adapter and it appears to be for Windows. I heard Belkin has adapters that support Linux. Any advice? Thanks, Matt

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ip range question....10.0.0.0/32 etc...
by Tom Nielsen 20 Mar '04

20 Mar '04

How do I list an ip so that covers the whole range of the last numbers? E.g 192.168.0.0 to 192.168.0.256 = 192.168.0.0/? Thanks, Tom -- Tom Nielsen Neuro Logic Systems 805.389.5435 x18 www.neuro-logic.com

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Money Programs
by Rem P Roberti 05 Mar '04

05 Mar '04

Having doggedly made the transition from Windoz, there are only a couple of things more that I need in apps, one of them is a basic accounting program that is a little more functional (ie flexibility with respect to online downloads from banking institutions) than either gnucash or kmoney. Previous to this all my basic needs were filled via Quicken. Any suggestions would be appreciated. Rem

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