{"id":8990,"date":"2005-05-22T14:58:16","date_gmt":"2005-05-22T11:58:16","guid":{"rendered":"https:\/\/mamchenkov.net\/wordpress\/?p=8990"},"modified":"2005-05-31T23:10:31","modified_gmt":"2005-05-31T20:10:31","slug":"uptime-records","status":"publish","type":"post","link":"https:\/\/mamchenkov.net\/wordpress\/2005\/05\/22\/uptime-records\/","title":{"rendered":"Uptime records"},"content":{"rendered":"<!-- google_ad_section_start -->\n<p>It&#8217;s been a while since I checked <code>uptime<\/code> on few servers that I manage at work. And by &#8220;a while&#8221; I mean &#8220;<strong>a while<\/strong>&#8220;.  Here are five records for you to be impressed.<\/p>\n<ol>\n<li><strong>ldap-master<\/strong> &#8211; this server has a pretty easy life.  It is a master node of our internal LDAP cluster.  All it has to do is answer the queries of about 20 other servers and a couple of web applications.\n<pre>[leonid@ldap-master leonid]$ uptime\r\n2:39pm  up <strong>462 days,  9:19<\/strong>,  3 users,  \r\nload average: 0.00, 0.00, 0.00<\/pre>\n<\/li>\n<li><strong>news<\/strong> &#8211; this server is under bigger load constantly.  It runs as a slave of our internal LDAP cluster.  It hosts one of the havier used web applications with database backend.  It also runs a news-mail-news gateway, which allows employees to read and post to several heavy mailing lists via a single subscription.\n<pre>[leonid@news leonid]$ uptime\r\n2:40pm  up <strong>455 days, 10:59<\/strong>,  1 user,  \r\nload average: 0.11, 0.03, 0.01<\/pre>\n<\/li>\n<li><strong>devzone<\/strong> &#8211; this is our main development server.  About 20 people are constantly using it.  It also hosts one of our <a href=\"http:\/\/www.bestpractical.com\/rt\/\">RT ticketing systems<\/a>, as well as a few other web applications.  There are also a few processes running in test mode.\n<pre>[leonid@devzone leonid]$ uptime\r\n2:44pm  up <strong>404 days, 13:12<\/strong>, 11 users,  \r\nload average: 0.07, 0.06, 0.00<\/pre>\n<\/li>\n<li><strong>gorilla<\/strong> &#8211; our main file server.  It hosts homes for more than a hundred users. It also has a bunch of file areas accessible via FTP, NFS, and Windows file sharing (SMB).  It also hosts mirrors some mirrors of apt repositories and even Tucows.  Some of it is also used for network backups.\n<pre>[leonid@gorilla leonid]$ uptime\r\n2:46pm  up <strong>394 days, 10:36<\/strong>,  2 users,  \r\nload average: 0.00, 0.01, 0.15<\/pre>\n<\/li>\n<li><strong>backupsrv<\/strong> &#8211; this is our backup server.  It is one of the most heavier used servers on our whole network.  It is responsible for backup and restore of about a hundred hosts and devices.  Most of these are done on the daily basis.  <em>This server gets most of its reboots from the SCSI equipment errors.<\/em>\n<pre>[leonid@backupsrv leonid]$ uptime\r\n2:51pm  up <strong>284 days,  6:55<\/strong>,  2 users,  \r\nload average: 0.00, 0.00, 0.00\r\n<\/pre>\n<\/li>\n<\/ol>\n<p>I checked <code>uptime<\/code> on several other hosts and all of them are either approaching one year, or passed it already.  All of these hosts are running some version of <a href=\"http:\/\/www.redhat.com\">Red Hat<\/a> distribution.  Versions vary from Red Hat Linux 6.2, through Fedora Linux Core 3, to Red Hat Enterprise Linux ES 4.<\/p>\n<!-- google_ad_section_end -->\n","protected":false},"excerpt":{"rendered":"<!-- google_ad_section_start -->\n<p>It&#8217;s been a while since I checked uptime on few servers that I manage at work. And by &#8220;a while&#8221; I mean &#8220;a while&#8220;. Here are five records for you to be impressed. ldap-master &#8211; this server has a pretty easy life. It is a master node of our internal LDAP cluster. All it has &hellip; <a href=\"https:\/\/mamchenkov.net\/wordpress\/2005\/05\/22\/uptime-records\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Uptime records<\/span><\/a><\/p>\n<!-- google_ad_section_end -->\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[1,6,62],"tags":[1531],"keyring_services":[],"class_list":["post-8990","post","type-post","status-publish","format-standard","hentry","category-general","category-linux","category-technology","tag-operating-systems"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":9037,"url":"https:\/\/mamchenkov.net\/wordpress\/2005\/06\/03\/murphys-law-is-still-at-work\/","url_meta":{"origin":8990,"position":0},"title":"Murphy&#8217;s Law is still at work","author":"Leonid Mamchenkov","date":"June 3, 2005","format":false,"excerpt":"Murphy's Law is still at work: If anything can go wrong, it will. Just when I thought I was finishing with integrating main LDAP parts (that includes installation, configuration and testing of LDAP server, deployment of LDAP cluster, development of all needed web interfaces, documenting everything, training other people to\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7565,"url":"https:\/\/mamchenkov.net\/wordpress\/2004\/06\/11\/ldap2mutt\/","url_meta":{"origin":8990,"position":1},"title":"ldap2mutt","author":"Leonid Mamchenkov","date":"June 11, 2004","format":false,"excerpt":"Although Mutt can query LDAP directories for addresses directly, sometimes connectivity to LDAP server is troublesome (firewalls, company policies, etc). One way to go around this problem would be to create Mutt addressbook regularly from the content of LDAP directory. This script does exactly this. Specify which LDAP server to\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8991,"url":"https:\/\/mamchenkov.net\/wordpress\/2005\/05\/22\/finding-uptime-on-windows-2000-machines\/","url_meta":{"origin":8990,"position":2},"title":"Finding uptime on Windows 2000 machines","author":"Leonid Mamchenkov","date":"May 22, 2005","format":false,"excerpt":"I tried to check the uptime on some of our Windows 2000 servers, but discovered that there is no such command. Neither there is utime or anything alike. Puzzled I turned to Google and found this article. In short, I had to issue net statistics server command. The first line\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5,"url":"https:\/\/mamchenkov.net\/wordpress\/2001\/11\/08\/first-ldap-encounter\/","url_meta":{"origin":8990,"position":3},"title":"First LDAP encounter","author":"Leonid Mamchenkov","date":"November 8, 2001","format":false,"excerpt":"I have started to learn LDAP today. Here is how I did it: Install new Red Hat Linux 7.2 server. During install Specify to authenticate through LDAP which is located at 127.0.0.1 I forgot to permit SSH connection during firewall configuration In boot manager configuration, I have specified to use\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7379,"url":"https:\/\/mamchenkov.net\/wordpress\/2004\/03\/23\/how-can-i-configure-mutt-to-use-addresses-from-ldap-addressbook\/","url_meta":{"origin":8990,"position":4},"title":"How can I configure mutt to use addresses from LDAP addressbook?","author":"Leonid Mamchenkov","date":"March 23, 2004","format":false,"excerpt":"\"mutt ldap address\" \".muttrc ldap address\" \"mutt ldap\" \"ldap script for mutt\" \"ms exchange directory\" You will need to download one of the LDAP querying scripts for mutt. One of them is here. After downloading, edit the script to match your LDAP server and put lines like set query_command=\"\/home\/username\/bin\/mutt-ldap.pl '%s'\"\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7517,"url":"https:\/\/mamchenkov.net\/wordpress\/2004\/05\/21\/fix-for-fedora-linux-core-2-ldap-authentication-problem\/","url_meta":{"origin":8990,"position":5},"title":"Fix for Fedora Linux Core 2 LDAP authentication problem","author":"Leonid Mamchenkov","date":"May 21, 2004","format":false,"excerpt":"Just few minutes after posting to Fedora mailing, I've managed to find the solution to my problem with LDAP authentication in Fedora Linux Core 2. Murphy's law in action. :) It seems that there was an undocumented change in default behavior. File \/etc\/ldap.conf (provided by nss_ldap) says: # OpenLDAP SSL\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts\/8990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/comments?post=8990"}],"version-history":[{"count":0,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts\/8990\/revisions"}],"wp:attachment":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/media?parent=8990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/categories?post=8990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/tags?post=8990"},{"taxonomy":"keyring_services","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/keyring_services?post=8990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}