Cacti SNMP error

[Andemik234]

Hello all,

I'm new to the cacti community, and I have a problem that i couldn't solve.

I followed some debuggins tutorials and i looked a lot of posts on the forum, but still blocked.

In cacti.log i have:

06/03/2016 11:25:25 AM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'serv2', and OID:'.1.3.6.1.2.1.1.3.0'
06/03/2016 11:25:26 AM - CMDPHP: Poller[0] Host[45] DS[627] WARNING: Result from CMD not valid. Partial Result: U
06/03/2016 11:25:26 AM - CMDPHP: Poller[0] Host[45] DS[627] WARNING: Result from CMD not valid. Partial Result: U
06/03/2016 11:25:26 AM - CMDPHP: Poller[0] Host[45] DS[628] WARNING: Result from CMD not valid. Partial Result: U

I have the "SNMP error" in red when i go on the 'serv2' device on cacti.
My cacti is running on 'serv2', and i can't graph his results. I have a lot of graphs thats work already, with other devices.

When i check my snmp agent, its seems all good:
snmpwalk -v 2c -c community localhost .1.3.6.1.2.1.1.1.0
SNMPv2-MIB::sysDescr.0 = STRING: Linux serv2 2.6.32-573.12.1.el6.x86_64 #1 SMP Mon Nov 23 12:55:32 EST 2015 x86_64

netstat -anp | grep 161
tcp 0 0 ::ffff:10.100.9.8:81 ::ffff:152.17.51.132:55161 TIME_WAIT -
udp 0 0 0.0.0.0:161 0.0.0.0:*

Crontab:
*/5 * * * * php /usr/share/cacti/poller.php &>/dev/null
00 * * * * echo "clean $(date)" > /usr/share/cacti/log/cacti.log

I tried with debugging level on the poller, with the id of the device:
grep 'Host\[97\]' cacti.log
06/03/2016 02:00:23 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:04:22 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:05:23 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:10:22 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:15:23 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:20:22 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:25:23 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP
06/03/2016 02:30:23 PM - CMDPHP: Poller[0] Host[97] SNMP: Host did not respond to SNMP

I can ping it, and the cacti service run on this server.

Thank you in advance for your help. Sorry for the language.

[phalek]

And how did you setup the SNMP access to that device/server ? can you post the snmpd.conf ?

Compare what you have configured with my post here: https://www.urban-software.com/2016/05/ ... ver-cacti/

[Andemik234]

There is my snmpd.conf:

rocommunity netwitness
disk /
disk /boot
disk /local/home
disk /local/opt
disk /tmp
disk /var
disk /local/opt/Dokuwiki
com2sec notConfigUser default public

group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser

view centreon included .1.3.6.1
view centreon included .1.3.6.1
view centreon included .1.3.6.1
view centreon included .1.3.6.1
view centreon included .1.3.6.1
view centreon included .1.3.6.1
view centreon included .1.3.6.1
view systemview included .1.3.6.1.2.1.1
view systemview included .1.3.6.1.2.1.25.1.1

access notConfigGroup "" any noauth exact centreon none none
access notConfigGroup "" any noauth exact systemview none none

syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)

dontLogTCPWrappersConnects yes

Thank you for you help and your post. I will check my configuration with it.

[phalek]

My guess is that you should comment out this line:

Code: Select all

access notConfigGroup "" any noauth exact systemview none none

[Andemik234]

Thank you for your advice, i tried to comment out, but always the same problem.

[Andemik234]

I modified my snmpd.conf with the How To of Phalek.

There it is:
rocommunity netwitness
disk /
disk /boot
disk /local/home
disk /local/opt
disk /tmp
disk /var
disk /local/opt/Dokuwiki

com2sec notConfigUser default netwitness
group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser
view allview included .1
access notConfigGroup "" any noauth exact allview none none
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)

snmpwalk -v 2c -c netwitness localhost .1.3.6.1.2.1.1.1.0
SNMPv2-MIB::sysDescr.0 = STRING: Linux fr0-vsiaas-1225 2.6.32-573.12.1.el6.x86_64 #1 SMP Mon Nov 23 12:55:32 EST 2015 x86_64

snmpwalk -v 2c -c netwitness localhost .1.3.6.1.4.1.2021.100.2.0
UCD-SNMP-MIB::versionTag.0 = STRING: 5.5

There are no rules in Ip.tables that could prevent the snmp connection.

I can't understand why i have a SNMP error, for my localhost.

[phalek]

Now that you've done that. GO to cacti, edit the device and make sure the SNMP Version is "2c" and the community matches the one you've chosen.

Once you hit the "Save" button, you should be able to see some SNMP Information to the top-left of the device screen. Can you check and tell us what you see there ?

[Andemik234]

I can see "SNMP error" again.

Device1 (Device1)
SNMP Information
SNMP error

Not like an another external device, who works:

Device2 (Device2)
SNMP Information
System:15:21:19:08:UTCX86_64
Uptime: 457773921 (52 days, 23 hours, 35 minutes)
Hostname: fr0-log-p20
Location: undisclosed
Contact: undisclosed

[Andemik234]

I tried to put 127.0.0.1, as hostname for my device, because its the localhost.

It works fine:

Device1(127.0.0.1)
SNMP Information
System:Linux Device1 2.6.32-573.12.1.el6.x86_64 #1 SMP Mon Nov 23
12:55:32 EST 2015 x86_64
Uptime: 6951662 (0 days, 19 hours, 18 minutes)
Hostname: Device1
Location: Unknown (edit /etc/snmp/snmpd.conf)
Contact: Root root@localhost (configure /etc/snmp/snmp.local.conf)

I don't know why when i configure with the hostname it doesn't work. Thank you for all the help !