X-Git-Url: https://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/595d6b8c2e99ba5eeea830ce16a57726f5b6504e..c5b44c32ebdad3ecbe016f39be56b13cb0e2afd6:/blog/index.rss diff --git a/blog/index.rss b/blog/index.rss index b4ea21c5b8..341a283a0e 100644 --- a/blog/index.rss +++ b/blog/index.rss @@ -6,6 +6,53 @@ http://people.skolelinux.org/pere/blog/ + + Lenker for 2012-11-28 + http://people.skolelinux.org/pere/blog/Lenker_for_2012_11_28.html + http://people.skolelinux.org/pere/blog/Lenker_for_2012_11_28.html + Wed, 28 Nov 2012 21:00:00 +0100 + <p>Mye interessant har skjedd de siste ukene. Her er noen dokumenter +jeg har hatt glede av å lese.</p> + +<p><ul> + +<li><a href="http://www.digi.no/906843/kan-du-hjelpe-piratpartiet">- +Kan du hjelpe Piratpartiet?</a> - Piratpartiet mangler 600 +borgersignaturer for å kunne stille til stortingsvalg neste år. Jeg +har samlet 20 signaturer. Har du gjort ditt?</li> + +<li><a href="http://geekfeminism.wikia.com/wiki/Who_is_harmed_by_a_%22Real_Names%22_policy%3F">Who +is harmed by a "Real Names" policy?</a> - en fin oversikt over hvem +som blir skadelidende når nett-tjenester og aviser innfører krav om +"ekte navn" for å delta.</li> + +<li><a href="http://www.aftenposten.no/meninger/kronikker/Kan-vi-stole-pa-alle-i-politiet-7056453.html">Kan +vi stole på alle i politiet?</a> - Advokat Sigurd J. Klomsæt skriver +litt om hvor merkelig det er å bli anklaget for å ha lekket +informasjon fra et politi som åpenbart lekker selv.</li> + +<li><a href="http://www.digi.no/906576/opphavsretten-maa-vekk">- +Opphavsretten må vekk</a> - En av stifterne til +<a href="http://www.eff.org/">EFF</a> besøkte Oslo i forrige uke, og +ble i den forbindelsen intervjuet av Digi. + +<li><a href="http://www.idg.no/computerworld/article261391.ece">Sparer +100 millioner kroner med Linux</a> - München har beregnet hvor mye de +har spart på sin overgang til Linux.</li> + +<li><a href="http://www.idg.no/computerworld/article259803.ece">Oslo +Børs kjøres nå på Linux</a> - Børsen gikk nylig over fra .NET-basert +løsning til Linux-basert løsning, for å få et system med akseptabel +kvalitet.</li> + +<li><a href="http://www.idg.no/computerworld/article261219.ece">It-milliardær +vil bygge Mars-koloni</a> - inspirerende for oss som savner en +selvforsynt koloni på mars.</li> + +</ul></p> + + + 1.4 millioner potensielle journalistsamtaler i politiets hender http://people.skolelinux.org/pere/blog/1_4_millioner_potensielle_journalistsamtaler_i_politiets_hender.html @@ -676,94 +723,5 @@ Frikanalen, bli medlem, lage og sende programmer der.</p> - - 12 years of outages - summarised by Stuart Kendrick - http://people.skolelinux.org/pere/blog/12_years_of_outages___summarised_by_Stuart_Kendrick.html - http://people.skolelinux.org/pere/blog/12_years_of_outages___summarised_by_Stuart_Kendrick.html - Fri, 26 Oct 2012 14:20:00 +0200 - <p>I work at the <a href="http://www.uio.no/">University of Oslo</a> -looking after the computers, mostly on the unix side, but in general -all over the place. I am also a member (and currently leader) of -<a href="http://www.nuug.no/">the NUUG association</a>, which in turn -make me a member of <a href="http://www.usenix.org/">USENIX</a>. NUUG -is an member organisation for us in Norway interested in free -software, open standards and unix like operating systems, and USENIX -is a US based member organisation with similar targets. And thanks to -these memberships, I get all issues of the great USENIX magazine -<a href="https://www.usenix.org/publications/login">;login:</a> in the -mail several times a year. The magazine is great, and I read most of -it every time.</p> - -<p>In the last issue of the USENIX magazine ;login:, there is an -article by <a href="http://www.skendric.com/">Stuart Kendrick</a> from -Fred Hutchinson Cancer Research Center titled -"<a href="https://www.usenix.org/publications/login/october-2012-volume-37-number-5/what-takes-us-down">What -Takes Us Down</a>" (longer version also -<a href="http://www.skendric.com/problem/incident-analysis/2012-06-30/What-Takes-Us-Down.pdf">available -from his own site</a>), where he report what he found when he -processed the outage reports (both planned and unplanned) from the -last twelve years and classified them according to cause, time of day, -etc etc. The article is a good read to get some empirical data on -what kind of problems affect a data centre, but what really inspired -me was the kind of reporting they had put in place since 2000.<p> - -<p>The centre set up a mailing list, and started to send fairly -standardised messages to this list when a outage was planned or when -it already occurred, to announce the plan and get feedback on the -assumtions on scope and user impact. Here is the two example from the -article: First the unplanned outage: - -<blockquote><pre> -Subject: Exchange 2003 Cluster Issues -Severity: Critical (Unplanned) -Start: Monday, May 7, 2012, 11:58 -End: Monday, May 7, 2012, 12:38 -Duration: 40 minutes -Scope: Exchange 2003 -Description: The HTTPS service on the Exchange cluster crashed, triggering - a cluster failover. - -User Impact: During this period, all Exchange users were unable to - access e-mail. Zimbra users were unaffected. -Technician: [xxx] -</pre></blockquote> - -Next the planned outage: - -<blockquote><pre> -Subject: H Building Switch Upgrades -Severity: Major (Planned) -Start: Saturday, June 16, 2012, 06:00 -End: Saturday, June 16, 2012, 16:00 -Duration: 10 hours -Scope: H2 Transport -Description: Currently, Catalyst 4006s provide 10/100 Ethernet to end- - stations. We will replace these with newer Catalyst - 4510s. -User Impact: All users on H2 will be isolated from the network during - this work. Afterward, they will have gigabit - connectivity. -Technician: [xxx] -</pre></blockquote> - -<p>He notes in his article that the date formats and other fields have -been a bit too free form to make it easy to automatically process them -into a database for further analysis, and I would have used ISO 8601 -dates myself to make it easier to process (in other words I would ask -people to write '2012-06-16 06:00 +0000' instead of the start time -format listed above). There are also other issues with the format -that could be improved, read the article for the details.</p> - -<p>I find the idea of standardising outage messages seem to be such a -good idea that I would like to get it implemented here at the -university too. We do register -<a href="http://www.uio.no/tjenester/it/aktuelt/planlagte-tjenesteavbrudd/">planned -changes and outages in a calendar</a>, and report the to a mailing -list, but we do not do so in a structured format and there is not a -report to the same location for unplanned outages. Perhaps something -for other sites to consider too?</p> - - -