Archive
Posts from 2007
Monitoring Linux server performance with procallator
I manage a fair number of Linux hosts, and like to keep tabs on how my systems are performing. One way I accomplish this is with procallator, which is a Perl script that collects performance data that can be graphed by orca. The graphs that orca produces are great awesome for trening server performance over time, and can be extremely valuable when debugging performance problems. To setup procallator to collect performance data, you first need to retrieve the latest orca CVS snapshot from the orcaware snapshots directory (the procallator script is included with the orca snapshot, and the latest version contains a number of fixes)…
$ read more →Monitoring LDAP performance article
I got a few requests for my monitoring OpenLDAP performance article, so I decided to place it up on my website. If your interested in using ldap-ping.pl and orca to monitor OpenLDAP server performance, you might be interested in the article.
$ read more →Quieting the shell during login sessions
Most of the Solaris systems I access through an SSH shell session display a bunch of cruft (e.g., do you have mail?, etc.) when I login. To reduce the amount of chatter, I recently created a .hushlogin file in the home directory of each server I support: When this file is present, the logic in /etc/profile will limit what is displayed. Niiiiiice!
$ read more →All Solaris core files are not created equally!
While playing around with the Solaris process.max-core-size resource control last week, I noticed some interesting behavior. If you set the system wide maximum size of a core with projmod: and then attempt to generate a core file: The core file that is produced will match the value of the resource control: Now the interesting part. If you have global core file support enabled, the size of the core file written to the global core file directory is not limited in size: total 6692 drwxr-xr-x 2 root root 512 May 22 14:29 . drwxr-xr-x 44 root sys 1024 May 22 14:28 …
$ read more →Accessing webdav shares from the command line
I have been using webdav as a centralized storage system for a the past year or so. I typically use the OS X built-in DAV support, but recently needed to be able to access my DAV share through the shell. After a bit of poking around on the web, I came across the cadaver command line DAV client. Cadaver is pretty slick, and operates very similar to an FTP client…
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