January 2020 - openSUSE Users - openSUSE Mailing Lists

[opensuse] DNS/Bind9 - success resolving 'XXX' after reducing the advertised EDNS UDP packet size to 512 octets
by David C. Rankin 03 Jan '20

03 Jan '20

All, This is more a general question about a rash of DNS resolution issues that seem to be on the increase on my ipv4 network lately. They basically have to do with Bind 9 trying to resolve names with EDNS (and I guess the default UDP package size of 4K) I don't handle ipv6 at all. In my named.conf I have: listen-on-v6 { none; }; But regardless, I end up with a slew of messages, e.g. error (network unreachable) resolving 'gateway.discord.gg/A/IN': 2001:630:0:9::14#53 success resolving 'gateway.discord.gg/A' (in 'discord.gg'?) after reducing the advertised EDNS UDP packet size to 512 octets I don't understand why I'm seeing the attempts to resolve the ipv6 address to begin with? However, the same issue seems to effect normal ipv4 addresses, even opensuse.org, e.g. Dec 30 22:03:48 nirvana named[15060]: success resolving 'www.opensuse.org/A' (in 'opensuse.org'?) after reducing the advertised EDNS UDP packet size to 512 octets Dec 30 22:03:54 nirvana named[15060]: success resolving 'nshou1.novell.com/A' (in 'novell.com'?) after reducing the advertised EDNS UDP packet size to 512 octets Dec 30 22:03:54 nirvana named[15060]: success resolving 'nshou1.novell.com/AAAA' (in 'novell.com'?) after reducing the advertised EDNS UDP packet size to 512 octets Dec 30 22:03:54 nirvana named[15060]: success resolving 'opensuse.org/A' (in 'opensuse.org'?) after reducing the advertised EDNS UDP packet size to 512 octets Dec 30 22:03:54 nirvana named[15060]: success resolving 'opensuse.org/AAAA' (in 'opensuse.org'?) after reducing the advertised EDNS UDP packet size to 512 octets From Bind9ARM, I have set the EDNS UDP packet size to 512, but I'm still having the problems. I have included: edns-udp-size 512; and I still do not eliminate the "success ... after reducing the advertised EDNS UDP packet size to 512 octets" messages that are logged. The EDNS resolution is working, but only for 512 octets (the related posts seem to indicate this is a problem largely to do with misconfigured load-balancing and failover configurations of the target machines. I don't recall seeing much of this before a month or two ago -- so I don't know if it is at all related to the DNS over http growing pains or what... Has anyone else run into this problem -- or have a solution? The time it takes for Bind to try from UDP size of 4096 (default) to 512 on some sites with 50 linked domains can be quite noticeable. -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] A 16TB hard disk drive is on sale for far less than you'd think
by Anton Aylward 01 Jan '20

01 Jan '20

A 16TB hard disk drive is on sale for far less than you'd think 16TB HDD for just over $400 <https://www.techradar.com/news/a-16tb-hard-disk-drive-is-on-sale-for-far-le…> Storage giant Seagate unveiled two new hard disk drives with a 16TB capacity earlier this year and for once, it was not all about data centers. The Exos X16 and the IronWolf/IronWolf Pro targeted two different audiences (data center for the first and NAS users for the second) and feature SATA or SAS interface only for the first one and SATA only for the second model. Provantage is selling the _Exos_ <https://www.provantage.com/seagate-st16000nm001g~7SEGE1K1.htm> (ST16000NM001G) for just over $400 while the _IronWolf_ <https://www.amazon.com/Seagate-IronWolf-16TB-256Mb-7200Rpm/dp/B07SNW9W48/re…> one (ST16000VN001) retails for just under $500 from Amazon. Both have nine platters, use Helium technology and have a five year warranty (the IronWolf has three); they also share the s same spinning speed (7200RPM), idle power (5W), average latency (4.16ms) and cache (256MB). The Exos range carries a MTBF (mean time before failures) at 2.5M hours and boasts a higher sustained transfer rate at 261MBps; the IronWolf Pro and the IronWolf reach 250 and 210MBps respectively. Note that the IronWolf Pro also comes with bundled Rescue Services, great for data recovery. * These are the best cloud storage <https://www.techradar.com/news/the-best-cloud-storage> of 2020, great to save your files online. * We also compiled the list of best cloud backup services <https://www.techradar.com/best/best-cloud-backup> * It is advisable that you keep a local copy of your files, so check out our best NAS <https://www.techradar.com/news/the-10-best-nas-devices-reviewed> Toshiba announced the 16TB _MG08_ <https://www.techradar.com/news/toshiba-unveils-new-16tb-enterprise-capacity…> series in January 2019 but we have yet to see any stock in the channel. Western Digital also shipped its first 16TB hard disk drives as well but based on MAMR rather than HAMR technology - as used by Seagate. While SSD prices have been falling, they are still far more expensive than their hard disk drive counterparts. At about $2800, Micron’s 9300 Pro <https://www.connection.com/product/micron-15.36tb-9300-pro-pcie-gen3-x4-nvm…> is nearly *SEVEN* times more expensive although this gap has all but disappeared for sub-1TB capacities. * _Cloud storage vs external hard disk drive: which one is better?_ <https://www.techradar.com/news/cloud-storage-vs-external-hard-disk-drive-wh…> *Source: https://www.techradar.com/news/a-16tb-hard-disk-drive-is-on-sale-for-far-le… ================================================================================ <AJA> I see mention that the gap between HDD and SSD prices has "all but disappered for sub-1TB capacities" which is interesting. The basic Linux OS as a healthy instlation can fit on under 500MB never mind 500GB, probably less. Let's not forget that memory is cheap and you probably can manage without swap unless you are doing something intense like photediting. Short of and EMP (and even then it's questionable) from various sources (and then there's the issue of how concerned with your digital memories will you be in the aftermath?) that might leave magnetic memory intact but erase (unsheilded) semiconductor memory ... No, wait! My current generation Dell box is heavily RF shlded. It's far removed from some of the 'white box from Tiawan' PCs chassis I have in my basement in this regard. Not that my neighbours ever complained about my PC (or, in times past, my radio HAM equipment) interfering with their TV (whihc was probably cable anyway). So I wonder how well sheilded our compters are? How easy it is to do? Is the present RF protection adequate? https://www.futurescience.com/emp/emp-protection.html https://www.csmonitor.com/2005/1219/p25s02-stct.html </AJAJ> -- A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting frowned upon? -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] Skype replacements
by Cons Brouerius van Nidek 01 Jan '20

01 Jan '20

With one my daughters who lives half the world away I had a good exchange with Skype. Since she works on an older I pad which is excluded from the last IOS updates her Skype does not work anymore. What are the programs we both can use to start connecting again. Is there a opensuse variant for IOS based systems? -- opensuse:tumbleweed:20191228 Qt: 5.13.1 KDE Frameworks: 5.65.0 - KDE Plasma: 5.17.4 - kwin 5.17.4 kmail2 5.13.0 (19.12.0) - akonadiserver 5.13.0 (19.12.0) - Kernel: 5.3.12-2- default - xf86-video-nouveau: -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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