http://wiki.fupps.com/ Wed, 23 Jul 2008 22:38:06 +0200 FeedCreator 1.7.2-ppt DokuWiki http://wiki.fupps.com/lib/images/favicon.ico http://wiki.fupps.com/ http://wiki.fupps.com/doku.php/nagios/nagios?rev=1163329602&do=diff1163329602 Nagios rocks as a network management system. In fact, at the company I contract for, they are phasing out HP in favour of Nagios, for a variety of reasons. During deployment of a distributed Nagios environment, we ran into some pretty serious performance issues which we analysed and worked around. This is described in Reducing Load on a Distributed Nagios Installation and has been translated to German by Thomas: Lastreduzierung in verteilter Nagiosumgebung Jan-Piet Mens nagios Sun, 12 Nov 2006 12:06:42 +0200 http://wiki.fupps.com/doku.php/nagios/german_icmp?rev=1163329582&do=diff1163329582 Unsere Umgebung besteht aus einem zetralen Nagios Server (Dual Xeon 3GHz mit 4GB Ram) und drei verteilten Systemen (Single Xeon 3GHz mit 2GB Ram). Jedes der verteilten Systeme überträgt seine ca. 2200 passiv, über NSCA an den Hauptserver (zusammen 6600 Checks). Hinzu kommen passive checks, die direct von den überwachten Systemen übermittelt werden. Zusammen laufen auf dem Hauptserver somit ca. 8200 checks auf. Jan-Piet Mens nagios Sun, 12 Nov 2006 12:06:22 +0200 http://wiki.fupps.com/doku.php/xml/snippets?rev=1163327954&do=diff1163327954 * Producing HTML from XML with XSL Jan-Piet Mens xml Sun, 12 Nov 2006 11:39:14 +0200 http://wiki.fupps.com/doku.php/getting-it-working?rev=1163327936&do=diff1163327936 * Dovecot & Quotas Jan-Piet Mens Sun, 12 Nov 2006 11:38:56 +0200 http://wiki.fupps.com/doku.php/snippets?rev=1163327921&do=diff1163327921 * XML and XSL snippets * Web CLI * Redir Jan-Piet Mens Sun, 12 Nov 2006 11:38:41 +0200 http://wiki.fupps.com/doku.php/start?rev=1163327901&do=diff1163327901 Top This wiki is primarily maintained by Jan-Piet Mens. This is Where I Keep things for a while, this is Where I Blog, and this is What I Use. I will be using this place as a documentation repository for all sorts of stuff. Since I’ve only just started, there won’t be much. Jan-Piet Mens Sun, 12 Nov 2006 11:38:21 +0200 http://wiki.fupps.com/doku.php/lotus?rev=1163327886&do=diff1163327886 * Import Birthdays Into Lotus Notes Calendar * Import X.509 Certificates into PNAB * Moving Mail from Lotus Domino to a Linux IMAP Server Jan-Piet Mens Sun, 12 Nov 2006 11:38:06 +0200 http://wiki.fupps.com/doku.php/ldap/ldp?rev=1163326782&do=diff1163326782 System administrators who log onto a number of machines often don’t do so as normal user (as they maybe ought to), then switching to root, but instead directly log on as root. In an environment thus controlled by different administrators, they commonly share a single user environment which is usually set up by the system via a combination of /etc/profile and ~/.profile, ~/.bashrc or similar. One difficulty in using a common environment is that administrators desiring different settings need to… Jan-Piet Mens ldap Sun, 12 Nov 2006 11:19:42 +0200 http://wiki.fupps.com/doku.php/ldap?rev=1148985699&do=diff1148985699 Software * ldp: LDAP Distributed shell-Profile The EXTERNAL mechanism The OpenLDAP client libraries can use a SASL EXTERNAL mechanism to bind to the directory. The client needs an SSL certificate with (e.g.) a common name (CN) and a mail address (Email). Quoting verbatim from the OpenLDAP Admin Guide chapter on Using TLS: “The server must request a client certificate in order to use the SASL EXTERNAL authentication mechanism with a TLS session. As such, a non-default TLSVerifyClient se… Jan-Piet Mens Tue, 30 May 2006 12:41:39 +0200 http://wiki.fupps.com/doku.php/nagios/blinkenlights?rev=1148455593&do=diff1148455593 We‘ve created a map which visualizes Nagios statii on a map. The idea was born a month ago, and it was completed after about three weeks]] Database I stuff a code into a MySQL database table: mysql> SELECT host,stat,led FROM hosttable; +-------------+------+-----+ | host | stat | led | +-------------+------+-----+ | host1 | 0 | 0 | | host2 | 1 | 1 | ... | host16 | 0 | 16 | +-------------+------+-----+ Jan-Piet Mens nagios Wed, 24 May 2006 09:26:33 +0200