C. Probes..........................................................................................................................................141
C.1. Probe guidelines............................................................................................................141
C.2. Apache 1.3.x and 2.0.x..................................................................................................141
C.2.1. Apache::Processes..........................................................................................142
C.2.2. Apache::Traffic...............................................................................................142
C.2.3. Apache::Uptime .............................................................................................143
C.3. BEA WebLogic 6.x and higher .....................................................................................143
C.3.1. BEA WebLogic::Execute Queue....................................................................144
C.3.2. BEA WebLogic::Heap Free ...........................................................................144
C.3.3. BEA WebLogic::JDBC Connection Pool ......................................................145
C.3.4. BEA WebLogic::Server State.........................................................................146
C.3.5. BEA WebLogic::Servlet.................................................................................146
C.4. General ..........................................................................................................................147
C.4.1. General::Remote Program..............................................................................147
C.4.2. General::Remote Program with Data.............................................................147
C.4.3. General::SNMP Check...................................................................................148
C.4.4. General::TCP Check ......................................................................................149
C.4.5. General::UDP Check......................................................................................149
C.4.6. General::Uptime (SNMP) ..............................................................................150
C.5. Linux .............................................................................................................................150
C.5.1. Linux::CPU Usage .........................................................................................150
C.5.2. Linux::Disk IO Throughput ...........................................................................151
C.5.3. Linux::Disk Usage..........................................................................................151
C.5.4. Linux::Inodes .................................................................................................152
C.5.5. Linux::Interface Traffic ..................................................................................152
C.5.6. Linux::Load....................................................................................................153
C.5.7. Linux::Memory Usage ...................................................................................153
C.5.8. Linux::Process Counts by State .....................................................................154
C.5.9. Linux::Process Count Total............................................................................154
C.5.10. Linux::Process Health ..................................................................................155
C.5.11. Linux::Process Running...............................................................................156
C.5.12. Linux::Swap Usage ......................................................................................156
C.5.13. Linux::TCP Connections by State................................................................157
C.5.14. Linux::Users.................................................................................................158
C.5.15. Linux::Virtual Memory................................................................................158
C.6. LogAgent.......................................................................................................................159
C.6.1. LogAgent::Log Pattern Match .......................................................................159
C.6.2. LogAgent::Log Size.......................................................................................160
C.7. MySQL 3.23 - 3.33 .......................................................................................................161
C.7.1. MySQL::Database Accessibility....................................................................161
C.7.2. MySQL::Opened Tables.................................................................................161
C.7.3. MySQL::Open Tables ....................................................................................161
C.7.4. MySQL::Query Rate ......................................................................................162
C.7.5. MySQL::Threads Running.............................................................................162
C.8. Network Services ..........................................................................................................163
C.8.1. Network Services::DNS Lookup....................................................................163
C.8.2. Network Services::FTP ..................................................................................163
C.8.3. Network Services::IMAP Mail.......................................................................164
C.8.4. Network Services::Mail Transfer (SMTP).....................................................164
C.8.5. Network Services::Ping..................................................................................165
C.8.6. Network Services::POP Mail .........................................................................165
C.8.7. Network Services::Remote Ping ....................................................................166
C.8.8. Network Services::RPCService......................................................................167
C.8.9. Network Services::Secure Web Server (HTTPS)...........................................167
C.8.10. Network Services::SSH................................................................................168
C.8.11. Network Services::Web Server (HTTP).......................................................168
