Linux Autodiscovery : services, processes, hard disks

[ghusson]

I began with disks monitoring autodiscovery.
I added process and services autodiscovery.
File joined gives everything needed
Do not forget to add a sudo for netstat : zabbix ALL=NOPASSWD: /bin/netstat
Autodiscovery period is set to 30mn.

Do not hesitate to make those scripts better !

Gautier Husson.

[Stephen Wood]

These are really cool, thanks for sharing.

Also, cheers for making sure you delegate privileges with sudo, or else you could potentially open up a serious security hole!

[Datum]

Could you provide some more documentation for installation?

I'm alright at linux stuff but could use some guidance.

I'd love to give this a shot for a particular server we're struggling with monitoring.

[ghusson]

Here is the updated package with readme.txt.

Do not hesitate to tell me if you find this package usefull

[ghusson]

Update - services by port, VM name for proxmox VE

Hello,

I post my update.
What is new :
- Discovery by port
- display VM names with Proxmox VE 1x and 2x
- sudo at script level

Enjoy !

[dvuong]

I've been using your script: discover_disk.perl
Work great, but somehow when I'm dealing with "physical" servers
the script doesn't populate the #DISKDEV & #DMNAME variable with the proper values. Any idea why?

on a VM when running discover_disk.perl, I get:

{
"{#DISK}":"dm-0",
"{#DISKDEV}":"/dev/mapper/RootVG00-rootVol",
"{#DMNAME}":"RootVG00-rootVol",
"{#VMNAME}":"",
"{#VMID}":""
}

on a physical when running discover_disk.perl, I get:

{
"{#DISK}":"dm-0",
"{#DISKDEV}":"/dev/dm-0",
"{#DMNAME}":"dm-0",
"{#VMNAME}":"",
"{#VMID}":""
}

Any idea on how to modify the script?

[ghusson]

dvuong :

This script works with Proxmox VE (at last version 2.x).
It is not hard to modify it, just try ?
Values for physical disk are OK : you have :
"{#DISK}":"dm-0",
"{#DISKDEV}":"/dev/dm-0",
"{#DMNAME}":"dm-0",
"{#VMNAME}":"",
"{#VMID}":""
#DISKDEV and #DMNAME are populated.
#VMNAME and #VMID are not populated, as this is a physical disk.

[Jebrail]

Hello,

I get ZBX_NOTSUPPERTED error when querying custom.disks.discovery_perl , zabix version 2.0.2 .

How do you think what can be reason ?

[jannoke]

I have made the changes. And agent_get replies with correct data.
Also have added the regex (see below) and imported xml.
I have added the templates to client host.

Template Linux disk autodiscovery
Template Linux services autodiscovery
Template OS Linux


For testing have set the discovery interval to 30 seconds. But I don't see any detected graphs.

Name	Expressions
	File systems for discovery	
1	 »	^(btrfs|ext2|ext3|ext4|jfs|reiser|xfs|ffs|ufs|jfs|jfs2|vxfs|hfs|ntfs|fat32)$	 [Result is TRUE]
	Linux disks for autodiscovery	
1	 »	^(hd[a-z]+|sd[a-z]+|vd[a-z]+|dm-[0-9]+|drbd[0-9]+)$	 [Result is TRUE]
2	 »	^(vzsnap.*|.*-cow|.*-real|ram[0-9]+|loop[0-9]+|sr[0-9]*|fd[0-9]*)$	 [Result is FALSE]
	Linux processes for autodiscovery	
1	 »	^(mimedefang|named|snmpd|snmptt|nfsd|syslogd|rsyslogd|syslog-ng|slapd|nmbd|inetd|cron|smbd|pvedaemon|ogSoapServ.pl|postgres|java)$	 [Result is TRUE]
	Linux TCP services for fordiscovery by name	
1	 »	^$	 [Result is FALSE]
2	 »	^(rpc.*|proftpd.+)$	 [Result is FALSE]
	Linux TCP services for fordiscovery by port	
1	 »	^(21|22|25|26|53|80|83|110|111|139|143|443|445|465|540|587|636|652|801|802|842|901|953|993|995|1100|1111|2049|3050|3142|3306|4190|5432|9101|9102|9103|10022|10023|10024|10025|22000|2 8081|28082|28083|28084|28085|28086|28087|28088|28089|28090|50000)$	 [Result is TRUE]
	Linux UDP services for fordiscovery by name	
1	 »	^$	 [Result is FALSE]
2	 »	^(avahi-daemon:|named|snmpd|ntpdate|zabbix_server|smbd|rpc.*|rsyslogd|snmpwalk|proxpolicy\s.*)$	 [Result is FALSE]
	Linux UDP services for fordiscovery by port	
1	 »	^(53|69|111|123|137|138|161|162|514|1812|1813|2049)$	 [Result is TRUE]
	Network interfaces for discovery	
1	 »	^Software Loopback Interface	 [Result is FALSE]
2	 »	^lo$	 [Result is FALSE]
	Storage devices for SNMP discovery	
1	 »	^(Physical memory|Virtual memory|Memory buffers|Cached memory|Swap space)$	 [Result is FALSE]

[gian72]

Thank you for your scripts and templates, works prefectly...
Gianluca

[ghusson]

I repacked the thing.
Now available on share.zabbix.com :

https://share.zabbix.com/cat-os/cat-linux-general/autodiscovery-disks-services-processes

[Starko]

I repacked the thing.
Now available on share.zabbix.com :
https://share.zabbix.com/cat-os/cat-...ices-processes

The link is dead :/

[ghusson]

Thanks Starko.
share.zabbix.com is still beta, my contribution vanished
New link : https://share.zabbix.com/component/m...ervice?Itemid=

BR

[Starko]

Have you ever thought about posting this project on github? So we could all work on this? This is a pretty good project and an interesting method of implementing it.

[ghusson]

Hello,

I never thought about it.
I touch to this zabbix set one time every 2 years

But indeed, it is simple, efficient, quite secure, perfect for lazy sys-admins like me...
I would be happy if some people would like to collaborate and enhance it.
But I really don't have time to manage that, sorry.

If somebody want to take the lead on this, feel free, it would make me happy !