Hi. I have installed Zabbix 2.2.6 on CentOS 6.5. Question not too relative to CentOS, but hope somebody can help with it. All triggers works correctly, but venti:system.users.num.last(0)}>0 - dont't. Screenshot one: http://i.stack.imgur.com/YM9mu.png And second one: http://i.stack.imgur.com/TMNqx.png From manual https://www.zabbix.com/documentation/1.8/manual/config/items?s=system&s=users&s=num we see, that: > Command who is used on agent side. who on box side: 14:29:44 [root at venti /tmp] # who setevoy pts/0 2014-09-15 14:15 (85.*.*.15) setevoy pts/1 2014-09-15 14:15 (:pts/0:S.0) ... # who | wc -l 11 Thus - system.users.num must be > 0 now. What I'm doing wrong?