Comments on: How To Get Data For Mrtg Without Running SNMP Daemon? http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/ Yet Another Admin's blog Thu, 04 Feb 2010 07:58:50 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Hamlesh http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-181056 Hamlesh Sat, 20 Mar 2010 10:07:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-181056 Perfect, just what I needed - thanks :) Perfect, just what I needed – thanks :)

]]> By: Andrea http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-135262 Andrea Sat, 20 Mar 2010 14:08:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-135262 Hi, i've installed get_if_stats.pl, and my configuration is: Target[webpec1eth0]: `/usr/local/bin/get_if_stats.pl eth0` Options[webpec1eth0]: gauge,noinfo, nopercent, growright, nobanner Title[webpec1eth0]: Traffico IN/OUT(eth0) MaxBytes[webpec1eth0]: 100000000 PageTop[webpec1eth0]: Traffico interfaccia (eth0) # Target[webpec1eth1]: `/usr/local/bin/get_if_stats.pl eth1` Options[webpec1eth1]: gauge,noinfo, nopercent, growright, nobanner Title[webpec1eth1]: Traffico IN/OUT(eth1) MaxBytes[webpec1eth1]: 100000000 PageTop[webpec1eth1]: Traffico interfaccia (eth1) Eth0 graph is correct, while the eth1 graph shows empty values ? If I run the script on command line I get: 227419173 261530900 0 0 thanks andrea b Hi,
i’ve installed get_if_stats.pl, and my configuration is:

Target[webpec1eth0]: `/usr/local/bin/get_if_stats.pl eth0`
Options[webpec1eth0]: gauge,noinfo, nopercent, growright, nobanner
Title[webpec1eth0]: Traffico IN/OUT(eth0)
MaxBytes[webpec1eth0]: 100000000
PageTop[webpec1eth0]: Traffico interfaccia (eth0)
#
Target[webpec1eth1]: `/usr/local/bin/get_if_stats.pl eth1`
Options[webpec1eth1]: gauge,noinfo, nopercent, growright, nobanner
Title[webpec1eth1]: Traffico IN/OUT(eth1)
MaxBytes[webpec1eth1]: 100000000
PageTop[webpec1eth1]: Traffico interfaccia (eth1)

Eth0 graph is correct, while the eth1 graph shows empty values ?
If I run the script on command line I get:
227419173
261530900
0
0

thanks

andrea b

]]> By: Свадебный форум http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-123138 Свадебный форум Sat, 20 Mar 2010 09:10:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-123138 As for me i don't like OpenBSD. So, Linux Forewer )))) As for me i don’t like OpenBSD.
So, Linux Forewer ))))

]]> By: Dusan http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-121545 Dusan Sat, 20 Mar 2010 10:38:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-121545 Hi, Do you have any idea how to get this script working on OpenBSD? There is no /proc/net/dev on OpenBSD. Anyway, nice script, thanks :) Hi,

Do you have any idea how to get this script working on OpenBSD? There is no /proc/net/dev on OpenBSD.
Anyway, nice script, thanks :)

]]> By: Jon http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-13038 Jon Sat, 20 Mar 2010 12:34:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-13038 sb: is that true (the counter-size) even for 64 bit Linux? sb: is that true (the counter-size) even for 64 bit Linux?

]]> By: sb http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-689 sb Sat, 20 Mar 2010 21:30:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-689 Traffic monitoring without snmp has at least two caveats: 1) The counters in /proc/net/dev (and in the output of ifconfig etc.) are 32bit and will overflow at around 4GiB. SNMP agents (should!) use 64bit counters. 2) Related to (1), the SNMP client can tell if the counter has been reset because of a reboot, as it knows the server's uptime (SysUpTime). Have you tried tinysnmp? Its memory footprint is smaller than perl's ;-) Traffic monitoring without snmp has at least two caveats:

1) The counters in /proc/net/dev (and in the output of ifconfig etc.) are 32bit and will overflow at around 4GiB. SNMP agents (should!) use 64bit counters.

2) Related to (1), the SNMP client can tell if the counter has been reset because of a reboot, as it knows the server’s uptime (SysUpTime).

Have you tried tinysnmp? Its memory footprint is smaller than perl’s ;-)

]]> By: Scoundrel http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-295 Scoundrel Sat, 20 Mar 2010 12:38:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-295 2Bor: Thanks for example, but such complex config file is not so easily readable/modificable and that is why I've created my script ;-) 2Bor: Thanks for example, but such complex config file is not so easily readable/modificable and that is why I’ve created my script ;-)

]]> By: Bor http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-294 Bor Sat, 20 Mar 2010 12:33:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-294 Необязательно как скрипт делать ;) вот поделюсь своими ##################################################################### # # eth0 traffic graphing section from /proc/net/dev # change "grep eth0" to something else to measure a different device # Target[eth0]: `perl -e '@a=split(/[:\s]+/,qx(grep eth0 /proc/net/dev));printf "%.0f\n%.0f\n1\neth0 traffic\n",$a[2],$a[10];'`; Options[eth0]: dorelpercent, growright, nobanner, noinfo, transparent MaxBytes[eth0]: 2000000 AbsMax[eth0]: 10000000 kilo[eth0]: 1024 YLegend[eth0]: Bytes per second ShortLegend[eth0]: B/s Legend1[eth0]: Incoming Traffic in Bytes per second Legend2[eth0]: Outgoing Traffic in Bytes per second LegendI[eth0]: In: LegendO[eth0]: Out: Title[eth0]: net eth0 traffic PageTop[eth0]: net eth0 traffic ##################################################################### ##################################################################### # # alternative eth0 traffic graphing section # using "sar" instead of /proc/* # Target[eth0sar]: `perl -e 'printf "%.0f\n%.0f\n1\neth0sar traffic\n",(qx(/usr/bin/sar -n DEV | grep eth0 | tail -n 2)=~/eth0\s+[^\s]+\s+[^\s]+\s+([^\s]+)\s+([^\s]+)/)'`; Options[eth0sar]: dorelpercent, gauge, growright, nobanner, noinfo, transparent MaxBytes[eth0sar]: 2000000 AbsMax[eth0sar]: 10000000 kilo[eth0sar]: 1024 YLegend[eth0sar]: Bytes per second ShortLegend[eth0sar]: B/s Legend1[eth0sar]: Incoming Traffic in Bytes per second Legend2[eth0sar]: Outgoing Traffic in Bytes per second LegendI[eth0sar]: In: LegendO[eth0sar]: Out: Title[eth0sar]: net eth0sar traffic PageTop[eth0sar]: net eth0sar traffic ##################################################################### Необязательно как скрипт делать ;)
вот поделюсь своими

#####################################################################
#
# eth0 traffic graphing section from /proc/net/dev
# change “grep eth0″ to something else to measure a different device
#
Target[eth0]: `perl -e ‘@a=split(/[:\s]+/,qx(grep eth0 /proc/net/dev));printf “%.0f\n%.0f\n1\neth0 traffic\n”,$a[2],$a[10];’`;
Options[eth0]: dorelpercent, growright, nobanner, noinfo, transparent
MaxBytes[eth0]: 2000000
AbsMax[eth0]: 10000000
kilo[eth0]: 1024
YLegend[eth0]: Bytes per second
ShortLegend[eth0]: B/s
Legend1[eth0]: Incoming Traffic in Bytes per second
Legend2[eth0]: Outgoing Traffic in Bytes per second
LegendI[eth0]: In:
LegendO[eth0]: Out:
Title[eth0]: net eth0 traffic
PageTop[eth0]: net eth0 traffic
#####################################################################

#####################################################################
# # alternative eth0 traffic graphing section
# using “sar” instead of /proc/*
#
Target[eth0sar]: `perl -e ‘printf “%.0f\n%.0f\n1\neth0sar traffic\n”,(qx(/usr/bin/sar -n DEV | grep eth0 | tail -n 2)=~/eth0\s+[^\s]+\s+[^\s]+\s+([^\s]+)\s+([^\s]+)/)’`;
Options[eth0sar]: dorelpercent, gauge, growright, nobanner, noinfo, transparent
MaxBytes[eth0sar]: 2000000
AbsMax[eth0sar]: 10000000
kilo[eth0sar]: 1024
YLegend[eth0sar]: Bytes per second
ShortLegend[eth0sar]: B/s
Legend1[eth0sar]: Incoming Traffic in Bytes per second
Legend2[eth0sar]: Outgoing Traffic in Bytes per second
LegendI[eth0sar]: In:
LegendO[eth0sar]: Out:
Title[eth0sar]: net eth0sar traffic
PageTop[eth0sar]: net eth0sar traffic
#####################################################################

]]> By: Jon http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-278 Jon Sat, 20 Mar 2010 10:42:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-278 Cool stuff! Even if the load of an SNMP daemon wasn't an issue (and it is for me); this saves you worrying about configuring communities properly, security issues, etc. Cool stuff! Even if the load of an SNMP daemon wasn’t an issue (and it is for me); this saves you worrying about configuring communities properly, security issues, etc.

]]> By: Scoundrel http://kovyrin.net/2006/04/05/how-to-get-mrtg-wo-snmp/comment-page-1/#comment-232 Scoundrel Sat, 20 Mar 2010 14:46:00 +0000 http://blog.kovyrin.net/2006/04/05/hot-to-get-mrtg-wo-snmp/#comment-232 I am really glad that this small note can help you. And thanks for your comment. I am really glad that this small note can help you. And thanks for your comment.

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