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adds telnet example to munin

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waldek 2021-07-08 22:40:54 +02:00
parent 0a966c76ed
commit 202fb67af4
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modules/qualifying/learning_centralized_system_monitoring.md
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@ -203,6 +203,36 @@ munin-node-configure --shell --families=contrib,auto | sh -x
Because the munin server client model is so basic you can find node software for most operating systems.
I've run it successfully on [freeNAS](https://www.truenas.com/community/threads/install-munin-node.79224/#post-549934) but you can try a [windows](https://github.com/munin-monitoring/munin-node-win32) node as well.
When I say *simple* I mean *really simple*.
For those who like digging a bit deeper, you can connect to the munin node over telnet.
From a terminal on the master, or any IP address that is in the allow list of the node, you can do the following.
```
waldek@muninserver:~$ telnet 10.8.0.1 4949
Trying 10.8.0.1...
Connected to 10.8.0.1.
Escape character is '^]'.
# munin node at vps-42975ad1.vps.ovh.net
help
# Unknown command. Try cap, list, nodes, config, fetch, version or quit
list
cpu df df_inode entropy fail2ban forks fw_conntrack fw_forwarded_local fw_packets if_err_eth0 if_err_tun0 if_eth0 if_tun0 interrupts irqstats load memory netstat ntp_kernel_err ntp_kernel_pll_freq ntp_kernel_pll_off ntp_offset open_files open_inodes proc_pri processes swap systemd-status threads uptime users vmstat
fetch cpu
user.value 21547781
nice.value 22016
system.value 8773929
idle.value 895574842
iowait.value 449848
irq.value 0
softirq.value 773399
steal.value 540782
guest.value 0
.
quit
Connection closed by foreign host.
waldek@muninserver:~$
```
## Alternatives
There are quite a few alternatives out there to choose from.