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Old 08-26-2011, 11:29 AM
Siju George
Default zabbix-client abruptly closes connection with zabbix server on localhost in squeeze


I am running

root@zabbix-squeeze:~# dpkg -l |grep zabbix
ii zabbix-agent 1:1.8.2-1squeeze2
network monitoring solution - agent
ii zabbix-frontend-php 1:1.8.2-1squeeze2
network monitoring solution - PHP front-end
ii zabbix-server-mysql 1:1.8.2-1squeeze2
network monitoring solution - server (using MySQL)


zabbix-squeeze 2.6.32-5-xen-amd64 #1 SMP Tue Jun 14 12:46:30 UTC 2011
x86_64 GNU/Linux

on AWS with an AMI provided by Rightscale.

These are the repositories I use.

root@zabbix-squeeze:~# cat /etc/apt/sources.list
deb http://mirror.nus.edu.sg/Debian squeeze main contrib non-free
deb-src http://mirror.nus.edu.sg/Debian/ squeeze main contrib non-free

deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free

When I enabled monitoring for localhost on the zabbix-server I get
these error messages in the zabbix-server.log file.

1179:20110826:164531.270 Item [Zabbix Server:agent.ping] error: Got
empty string from []. Assuming that agent dropped connection
because of access permissions

Zabbix Agent listens on port 10050

root@zabbix-squeeze:~# netstat -ntpl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address
State PID/Program name
tcp 0 0*
LISTEN 1086/master
tcp 0 0*
LISTEN 2780/zabbix_agentd
tcp 0 0*
LISTEN 494/rpc.statd
tcp 0 0*
LISTEN 1120/zabbix_server
tcp 0 0*
LISTEN 858/mysqld
tcp 0 0*
LISTEN 482/portmap
tcp 0 0*
LISTEN 1101/sshd
tcp6 0 0 :::80 :::*
LISTEN 463/apache2
tcp6 0 0 :::22 :::*
LISTEN 1101/sshd

and the zabbix-agentd configuration is..

root@zabbix-squeeze:~# grep -v "#" /etc/zabbix/zabbix_agentd.conf

Telneting to localhost port 10050 ends the connection abruptly.

root@zabbix-squeeze:~# telnet localhost 10050
Trying ::1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.

What could be the trouble?



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