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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Wifi Clients Connect But Can't Get DHCP Lease- Wifi 802.1x with LDAP Groups
- NPS Notes
- Enable SSL
- Identify a VM by MAC address
- Client Setup
- Upgrading
- SSH no matching cypher
- Upgrade to 15.2
- SSLVPN DNS Suffix
- SSL Security Settings
- DH Selection For IPsec VPNs
- ssl.conf
- ntp footprint
- Database Information
- Trouble Beeping
- Use Python v3 Instead Of v2
- Recover from full disk
- 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
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.