Firewall
From ServersCheck Wiki
On this page you can find information on what ports are required for the specific type of checks used by the ServersCheck Monitoring Software
The ServersCheck Monitoring Software runs on port 1272 by default. This port can be changed by editing the ports.conf file in the /conf subdirectory. The web server can run in HTTP or HTTPS mode.
All ports below are outgoing TCP or UDP calls
| Check Type | Required ports | Protocol |
| SNMP BANDWIDTH TRAFFIC SNMP SNMPSTRING ORACLESNMP CISCOWORKS DELLOPENMANAGE MAXDATA | 161 | UDP |
| Windows Checks* | Windows Management Instrumentation 445 Remote Procedure Call (RPC) 135 (TCP & UDP) | TCP |
| LINUXHEALTH Check LINUXCPU LINUXMEM | Port 5555 Default port of Linux Agent | TCP |
| URL URLIMAGE URLEXISTS HTTPHEADER HTTPSTATUS | 80 for HTTP traffic 443 for HTTPS traffic | TCP |
| FTP FTPFILEEXISTS FTPFILEFOUND | 21 | TCP |
| SMTP | 25 | TCP |
| POP3 | 110 | TCP |
- Depending on your remote host's configuration, RPC dynamic port allocation may be active. This will instruct the RPC program to use a particular random port above 1024 and not just the ones defined above. For more information on how to configure RPC in such conditions, please refer to following knowledge base article from Microsoft: http://support.microsoft.com/kb/154596/