What Program Has This Port Open
How do I associate an open port with a running program?
eg: what is listening on port 22?# lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME sshd 1318 root 3u IPv4 2444 TCP *:ssh (LISTEN) sshd 7665 root 4u IPv4 166534123 TCP netbackup:ssh->router:918 (ESTABLISHED) sshd 19710 root 4u IPv4 554877146 TCP netbackup:ssh->router:853 (ESTABLISHED)
# lsof -i :smtp COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME sendmail 25860 root 4u IPv4 66767220 TCP *:smtp (LISTEN)
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Strip Comments And Whitespace From Config Files- Firewalld Limit Remote Source Connections
- List DHCP Clients CLI
- arp
- Time In Seconds
- Ping Stats Without Quitting
- FortiOS LLDP
- Dealing With Disk Full
- Useful sed
- Debug Site to Site VPN
- Packet Dumps
- System Version from CLI
- Transactional File Locking
- Net-SNMP Disk Check OID Table
- NSSU Warning
- Default route not working
- SSH PubKey Login
- SSH PubKey Login
- RTC Power Status Failed
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Editing: snipsnap-help, Image Macro(Et auditum est, et idcirco ego nunc simulare)
This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.