net.tcp.service.perf problem with SSH

[kustodian]

Hi everyone! I'm a new user to Zabbix and I'm currently transitioning my Nagios checks to Zabbix. So far it's going great

I stumbled upon one problem and that is with net.tcp.service.perf[service,<ip>,<port>]

I set Zabbix Agent item to check performance of SSH like this:

net.tcp.service.perf[ssh,,1022]

The problem is that this item should return 0 if the service is down and number of seconds if it's up. But what happens if it takes 0 seconds to reach the SSH server, since it is accessed localy? How would Zabbix know if the service is up or down then? I made a trigger which looks like this:

{Template OS Linux:net.tcp.service.perf[ssh,,1022].last(0)}=0

And this trigger is always telling me that SSH is down and I know it is up. Wouldn't it be better if this item returned -1 if there is a problem with the service, or is there a better way to write this trigger?

I also noticed that this item only works on the Zabbix Server which is running a Zabbix agent, it doesn't want to work on other servers with a Zabbix agent.

Thanks in advance.

[kustodian]

No one can help me out with this problem?

[mbsit]

Hi
First, if you are new, read the doc, please. Documentation of Zabbix is really great!

So, the item: net.tcp.service.perf is not AGENT TYPE ! Is "Simple check". Read the doc what it mean.

In your case, you should use different item, with key: net.tcp.service[service,<ip>,<port>] this item is checking if the service is up.

0- means down
1 - up

If you would like to check SSH on another host, you should create that host and assign the key:

net.tcp.service[ssh,{HOST.HOST}]

Bests,
Grzegorz

--
Wdrożenia Zabbix - Warszawa

https://www.mbs-it.pl

[kustodian]

Hi
First, if you are new, read the doc, please. Documentation of Zabbix is really great!

So, the item: net.tcp.service.perf is not AGENT TYPE ! Is "Simple check". Read the doc what it mean.

In your case, you should use different item, with key: net.tcp.service[service,<ip>,<port>] this item is checking if the service is up.

0- means down
1 - up

If you would like to check SSH on another host, you should create that host and assign the key:

net.tcp.service[ssh,{HOST.HOST}]

Bests,
Grzegorz

--
Wdrożenia Zabbix - Warszawa
www.mbs-it.pl

Thanks for you help, but I did read the documentation and I know the difference between simple checks and agent checks, but in the Zabbix Agent Item Type there is also net.tcp.service.perf defined, so I wanted to use that.

[cesarsj]

Why net.tcp.service [ssh ,, 1022], net.tcp.service [ssh,{HOST}.{IP}, 1022], net.tcp.service [ssh, {HOST}.{HOST}, 1022] do not work, while net. does tcp.service [ssh, 192.168.100.99,1022] work?

[gofree]

its beacuse youre not reading documentation macros are in {} - so it should be {HOST.HOST} {HOST.IP}, to tired to look in to your first example - check with docu

[cesarsj]

I had actually put {}, just as I edited the comment above. now that fix the detail worked. thanks.