Please Help in SNMP for RedHat 6.3

nazir1985 · 08-06-2014, 01:57 AM

Dears,
I Have Configured correct configuration on in snmpd.conf file and also the snmpd service is running, but my monitoring software cannot connect to the server, i have checked the Community String and it's correct, but cannot connect please help me dears to figure out what is the problem??

[root@newmed snmp]# service snmpd status
snmpd (pid 3161) is running...
[root@newmed snmp]# ps -ef | grep snmp
root 3161 1 0 09:24 ? 00:00:00 /usr/sbin/snmpd -LS0-6d -Lf /dev/null -p /var/run/snmpd.pid
root 3258 3075 0 09:53 pts/0 00:00:00 grep snmp
[root@newmed snmp]#

chrism01 · 08-06-2014, 05:34 AM

What about the firewall aka iptables .. ?

Code:

iptables -nvL

nazir1985 · 08-06-2014, 05:37 AM

Quote:

Originally Posted by chrism01

What about the firewall aka iptables .. ?

Code:

iptables -nvL

Dear thank you for your reply,
Below is the Output for iptables command:

[root@newmed ~]# iptables -nvL
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
4603 371K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
10 720 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0
1 60 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0
4 208 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
69 7380 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT 4215 packets, 561K bytes)
pkts bytes target prot opt in out source destination
[root@newmed ~]#

nazir1985 · 08-06-2014, 06:31 AM

Thank you chrism01,
i already solved the issue by deleting the reject all line by using the below command:
iptables -L INPUT --line-numbers
iptables -D INPUT (Line No. to be Deleted)

now the monitoring software can connect the server,
but is it correct to delete the reject line??

69 7380 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited