{"id":40,"date":"2010-05-01T02:28:10","date_gmt":"2010-05-01T02:28:10","guid":{"rendered":"https:\/\/chroot-me.in\/newblog\/2010\/05\/40\/"},"modified":"2014-01-30T02:36:31","modified_gmt":"2014-01-30T01:36:31","slug":"from-127-0-0-1-time-to-live-almost-exceeded","status":"publish","type":"post","link":"https:\/\/chroot-me.in\/blog\/2010\/05\/from-127-0-0-1-time-to-live-almost-exceeded\/","title":{"rendered":"From 127.0.0.1: Time to live (almost) exceeded"},"content":{"rendered":"<p>It has been quite some time since I wrote something here, certainly due to laziness, or maybe just because this whole blog thing started to sound like \u00ab\u00a0Meh\u00a0\u00bb.<\/p>\n<h3>Life stuff<\/h3>\n<p>Nothing earth-shattering for you people since my last article, but quite an interesting and enlightening period for me.<\/p>\n<p>I worked in Paris for 6 months for eNovance, a company focused on Open Source solutions and development. I used to work with wonderful people, and more importantly, I was able to share knowledge with about everyone out there. This intership has been one of the most interesting experience I ever had so far, even if the first three months were not easy. Thanks again to eNovance&rsquo;s staff for giving me this opportunity.<\/p>\n<p>I also had the chance to discover the <a href=\"http:\/\/www.tmplab.org\/\">\/tmp\/lab<\/a>, the most important <a href=\"http:\/\/hackerspaces.org\/wiki\/Hackerspaces\">hackerspace<\/a> in Paris. I walked in and met new (and very, very interesting) people. I wish to experience this again.<\/p>\n<p>Since then, I went back to Belfort as an UTBM student again, and I had quite a hard time to get used to this sudden change. But now, I feel confident and motivated, and I do not intent to jeopardize the last (long) run to the engineering degree. Moreover, my internship has been ended as a complete success with an excellent feedback from both eNovance and the UTBM.<\/p>\n<p>At the time of writing, I just went through a week of mid-term exams. I expect some surprising results, in both bad and good way. It is also about time to focus on the several projects I have to complete before the end of the semester. Hence this unexpected writing, before I consider myself too tight on schedule&#8230;<\/p>\n<h3>Geek thoughts<\/h3>\n<p><strong>GRSEC and IP Blackhole feature:<\/strong><\/p>\n<p>Neat for servers without a firewall, not for a router, where I experienced major slowdown while transfering files over a Fast Ethernet link. I eventually decided to disable this feature.<\/p>\n<p><strong>PVST and PVST++ :<\/strong><\/p>\n<p>Per Vlan Spanning Tree&#8230; Cisco&rsquo;s proprietary protocol that allow vlan specific STP settings. Seems neat and cool, unless you have heterogeneous appliances: A Cisco Catalyst WS-C2924-XL can&rsquo;t \u00ab\u00a0talk\u00a0\u00bb PVST+ with a Cisco Small Business SLM2008, resulting in useless lines in the Catalyst configuration.<\/p>\n<p>At least you can setup global STP setting within the VLAN 1 (Cisco&rsquo;s default VLAN for the Ethernet protocol).Therefore STP settings are effectively propagated, since the SLM2008 use the same default VLAN, and<\/p>\n<p>even if you change the <em>administration VLAN<\/em>.<\/p>\n<p>Surprising fact, a Cisco Small Business WAP 4410 Wireless Access Point seems to be able to receive and certainly handle PVST+ packets&#8230; which is SO making sense for a single bridge between a radio interface and a wired interface&#8230;<\/p>\n<p><strong>Ubuntu 10.04 Lucid Lynx:<\/strong><\/p>\n<p>Best Ubuntu experience I ever had so far. Everything seems to work seamlessly on my Thinkpad X300. Canonical and the Ubuntu community worked hard on this one.<\/p>\n<h3>That&rsquo;s all, folks!<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>It has been quite some time since I wrote something here, certainly due to laziness, or maybe just because this whole blog thing started to sound like \u00ab\u00a0Meh\u00a0\u00bb. Life stuff Nothing earth-shattering for you people since my last article, but quite an interesting and enlightening period for me. I worked in Paris for 6 months &hellip; <a href=\"https:\/\/chroot-me.in\/blog\/2010\/05\/from-127-0-0-1-time-to-live-almost-exceeded\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;From 127.0.0.1: Time to live (almost) exceeded&nbsp;&raquo;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,4,5],"tags":[],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry","category-english","category-geek","category-utbm"],"_links":{"self":[{"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/posts\/40","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/comments?post=40"}],"version-history":[{"count":0,"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"wp:attachment":[{"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chroot-me.in\/blog\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}