Quoting from “The Pond” by Rands
Working remotely isn’t a privilege; it’s work. And it’s the same work we’re all doing back at the mothership… fully clothed… in the Pond.
…and if you are a teleworker or manage teleworkers, you should read the comments too!
Munin already integrates with Nagios .. But I didn’t find anything for mon ..
So I hacked check_munin.pl from Nagios Exchange to work with mon ..
Download munin.monitor and place it in mon.d/ of your mon installation.
Now you can monitor ANY munin value using mon.
Use something like the following in your systems_monitor.m4
watch system01
service disk_root
interval 5m
monitor munin.monitor -M df -F _dev_cciss_c0d0p1 -w 90 -c 95 -H
depend SELF:ping
period _ANYTIME_
alertevery 15m summary
comp_alerts
alertafter 3
alert mail.alert _MY_EMAIL_
upalert mail.alert _MY_EMAIL_
service toomanyqueuedmails
interval 5m
monitor munin.monitor -M sendmail_mailqueue -F mails -w 50 -c 100 -H
depend SELF:ping
period _ANYTIME_
alertevery 15m summary
comp_alerts
alertafter 3
alert mail.alert _MY_EMAIL_
upalert mail.alert _MY_EMAIL_
service dnsresponse
interval 5m
monitor munin.monitor -M dnsresponse_193.92.110.1 -F avg -w 20 -c 50 -H
depend SELF:ping
period _ANYTIME_
alertevery 15m summary
comp_alerts
alertafter 3
alert mail.alert _MY_EMAIL_
upalert mail.alert _MY_EMAIL_
Make sure that your MON server’s IP is allowed in munin-node.conf of your munin client.
A munin plugin that allows you to monitor the response time of any DNS that allows you to recurse.
dnsresponse_ — it’s a poor man’s smokeping DNS probe :)
(wordpress.com does not allow arbitrary file uploads, so grab it from munin-exhange)
To install it, place it in /usr/share/munin/plugins/ and run “munin-node-configure –shell“.
By default it graphs the Average, Median and StdDev of 20 DNS queries.
sample dnsresponse_ graph
Το autoexec.gr, η γνωστή Ελληνική κοινότητα των IT Pros, οργανώνει συνάντηση στη Θεσσαλονίκη στις 28/04/2009 (στη Μονή Λαζαριστών)..
Φυσικά θα υπάρχουν ενδιαφέρουσες παρουσιάσεις όπως κάθε φορά, και ακόμα πιο ενδιαφέροντα “πηγαδάκια” :)
Οσοι πιστοί προσέλθετε.. http://autoexec.gr/forums/thread/14700.aspx
(Invitation-from:)
LiNUXLiNKS.com has posted a list of their favorite free Linux books.
“Individuals wanting to learn about the Linux operating system have a large selection of books to choose from. There are many thousands of informative Linux books which are in-print and available to download or buy at reasonable cost. However, as many users are attracted to Linux for the very reason that it is available under a freely distributable license, some will also want this to extend to the documentation they read. The focus of this article is to select some of the finest Linux books which are available to download for free.“
(via)
Σίγουρα γίνονται σοβαρές προσπάθιες localization για όλο το περιβάλλον του linux στα Ελληνικά, αλλά καλώς ή κακώς, εγώ προσωπικά πάντα στήνω το σύστημά μου με en_US locale και όχι el_GR. Ενα θέμα που πάντα μου τη σπάει είναι το date format, που by default είναι month/day/year και όχι day/month/year όπως το περιμένουμε στην Ελλάδα.
Ιδού λοιπόν το 1-line patch για το αρχείο /usr/share/i18n/locales/en_US που διορθώνει το θέμα:
--- en_US.orig 2009-04-03 11:50:02.000000000 +0300
+++ en_US 2009-04-03 11:50:42.000000000 +0300
@@ -107,8 +107,8 @@
d_t_fmt "<U0025><U0061><U0020><U0025><U0064><U0020><U0025><U0062><U0020><U0025><U0059><U0020><U0025><U0072><U0020><U0025><U005A>"
%
% Appropriate date representation (%x)
-% "%m/%d/%Y"
-d_fmt "<U0025><U006D><U002F><U0025><U0064><U002F><U0025><U0059>"
+% "%d/%m/%Y"
+d_fmt "<U0025><U0064><U002F><U0025><U006D><U002F><U0025><U0059>"
%
% Appropriate time representation (%X)
% "%r"
Μετά την αλλαγή τρέχουμε locale-gen και είμαστε έτοιμοι :)
