Linux-Server/Clients: Unterschied zwischen den Versionen
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| Zeile 14: | Zeile 14: | ||
* '''ss -ltp''' | * '''ss -ltp''' | ||
| − | State Recv-Q Send-Q Local Address:Port Peer Address:Port Process | + | State Recv-Q Send-Q Local Address:Port Peer Address:Port Process |
| − | LISTEN 0 128 127.0.0.1:ipp 0.0.0.0:* users:(("cupsd",pid=482,fd=9)) | + | LISTEN 0 128 127.0.0.1:ipp 0.0.0.0:* users:(("cupsd",pid=482,fd=9)) |
| − | LISTEN 0 128 0.0.0.0:ssh 0.0.0.0:* users:(("sshd",pid=483,fd=3)) | + | LISTEN 0 128 0.0.0.0:ssh 0.0.0.0:* users:(("sshd",pid=483,fd=3)) |
| − | LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13)) | + | LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13)) |
| − | LISTEN 0 4096 0.0.0.0:llmnr 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12)) | + | LISTEN 0 4096 0.0.0.0:llmnr 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12)) |
| − | LISTEN 0 4096 127.0.0.54:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20)) | + | LISTEN 0 4096 127.0.0.54:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20)) |
| − | LISTEN 0 4096 127.0.0.53%lo:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18)) | + | LISTEN 0 4096 127.0.0.53%lo:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18)) |
| − | LISTEN 0 128 [::]:ssh [::]:* users:(("sshd",pid=483,fd=4)) | + | LISTEN 0 128 [::]:ssh [::]:* users:(("sshd",pid=483,fd=4)) |
| − | LISTEN 0 128 [::1]:ipp [::]:* users:(("cupsd",pid=482,fd=8)) | + | LISTEN 0 128 [::1]:ipp [::]:* users:(("cupsd",pid=482,fd=8)) |
LISTEN 0 4096 [::]:llmnr [::]:* users:(("systemd-resolve",pid=393,fd=14)) | LISTEN 0 4096 [::]:llmnr [::]:* users:(("systemd-resolve",pid=393,fd=14)) | ||
;oder | ;oder | ||
| Zeile 29: | Zeile 29: | ||
Active Internet connections (only servers) | Active Internet connections (only servers) | ||
| − | Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name | + | Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name |
| − | tcp 0 0 localhost:ipps 0.0.0.0:* LISTEN 482/cupsd | + | tcp 0 0 localhost:ipps 0.0.0.0:* LISTEN 482/cupsd |
| − | tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN 483/sshd: /usr/bin/ | + | tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN 483/sshd: /usr/bin/ |
| − | tcp 0 0 localhost:5939 0.0.0.0:* LISTEN 608/teamviewerd | + | tcp 0 0 localhost:5939 0.0.0.0:* LISTEN 608/teamviewerd |
| − | tcp 0 0 0.0.0.0:llmnr 0.0.0.0:* LISTEN 393/systemd-resolve | + | tcp 0 0 0.0.0.0:llmnr 0.0.0.0:* LISTEN 393/systemd-resolve |
| − | tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve | + | tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve |
| − | tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve | + | tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve |
| − | tcp6 0 0 [::]:ssh [::]:* LISTEN 483/sshd: /usr/bin/ | + | tcp6 0 0 [::]:ssh [::]:* LISTEN 483/sshd: /usr/bin/ |
| − | tcp6 0 0 localhost:ipps [::]:* LISTEN 482/cupsd | + | tcp6 0 0 localhost:ipps [::]:* LISTEN 482/cupsd |
tcp6 0 0 [::]:llmnr [::]:* LISTEN 393/systemd-resolve | tcp6 0 0 [::]:llmnr [::]:* LISTEN 393/systemd-resolve | ||
;ohne Befragung der ''/etc/services'' | ;ohne Befragung der ''/etc/services'' | ||
| Zeile 43: | Zeile 43: | ||
* '''ss -ltpn''' | * '''ss -ltpn''' | ||
| − | State Recv-Q Send-Q Local Address:Port Peer Address:Port Process | + | State Recv-Q Send-Q Local Address:Port Peer Address:Port Process |
| − | LISTEN 0 128 127.0.0.1:631 0.0.0.0:* users:(("cupsd",pid=482,fd=9)) | + | LISTEN 0 128 127.0.0.1:631 0.0.0.0:* users:(("cupsd",pid=482,fd=9)) |
| − | LISTEN 0 128 0.0.0.0:22 0.0.0.0:* users:(("sshd",pid=483,fd=3)) | + | LISTEN 0 128 0.0.0.0:22 0.0.0.0:* users:(("sshd",pid=483,fd=3)) |
| − | LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13)) | + | LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13)) |
| − | LISTEN 0 4096 0.0.0.0:5355 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12)) | + | LISTEN 0 4096 0.0.0.0:5355 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12)) |
| − | LISTEN 0 4096 127.0.0.54:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20)) | + | LISTEN 0 4096 127.0.0.54:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20)) |
| − | LISTEN 0 4096 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18)) | + | LISTEN 0 4096 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18)) |
| − | LISTEN 0 128 [::]:22 [::]:* users:(("sshd",pid=483,fd=4)) | + | LISTEN 0 128 [::]:22 [::]:* users:(("sshd",pid=483,fd=4)) |
| − | LISTEN 0 128 [::1]:631 [::]:* users:(("cupsd",pid=482,fd=8)) | + | LISTEN 0 128 [::1]:631 [::]:* users:(("cupsd",pid=482,fd=8)) |
LISTEN 0 4096 [::]:5355 [::]:* users:(("systemd-resolve",pid=393,fd=14)) | LISTEN 0 4096 [::]:5355 [::]:* users:(("systemd-resolve",pid=393,fd=14)) | ||
Version vom 15. Februar 2023, 11:19 Uhr
Prinzip
- Die generelle Beziehung zwischen Server und Client
- Es können auch mehrere Sockets involviert sein (z.B. FTP)
- Verbindungen können lokal oder über ein Netzwerk laufen
![Bearbeiten](javascript:editDrawio("2036927903", "linux-server-client.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
Laufende Dienste anzeigen
- Es empfiehlt sich diese Befehle als root zu machen, damit auch alles angezeigt wird
- ss -ltp
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 127.0.0.1:ipp 0.0.0.0:* users:(("cupsd",pid=482,fd=9))
LISTEN 0 128 0.0.0.0:ssh 0.0.0.0:* users:(("sshd",pid=483,fd=3))
LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13))
LISTEN 0 4096 0.0.0.0:llmnr 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12))
LISTEN 0 4096 127.0.0.54:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20))
LISTEN 0 4096 127.0.0.53%lo:domain 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18))
LISTEN 0 128 [::]:ssh [::]:* users:(("sshd",pid=483,fd=4))
LISTEN 0 128 [::1]:ipp [::]:* users:(("cupsd",pid=482,fd=8))
LISTEN 0 4096 [::]:llmnr [::]:* users:(("systemd-resolve",pid=393,fd=14))
- oder
- netstat -ltp
Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 localhost:ipps 0.0.0.0:* LISTEN 482/cupsd tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN 483/sshd: /usr/bin/ tcp 0 0 localhost:5939 0.0.0.0:* LISTEN 608/teamviewerd tcp 0 0 0.0.0.0:llmnr 0.0.0.0:* LISTEN 393/systemd-resolve tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve tcp 0 0 localhost:domain 0.0.0.0:* LISTEN 393/systemd-resolve tcp6 0 0 [::]:ssh [::]:* LISTEN 483/sshd: /usr/bin/ tcp6 0 0 localhost:ipps [::]:* LISTEN 482/cupsd tcp6 0 0 [::]:llmnr [::]:* LISTEN 393/systemd-resolve
- ohne Befragung der /etc/services
- ss -ltpn
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 127.0.0.1:631 0.0.0.0:* users:(("cupsd",pid=482,fd=9))
LISTEN 0 128 0.0.0.0:22 0.0.0.0:* users:(("sshd",pid=483,fd=3))
LISTEN 0 128 127.0.0.1:5939 0.0.0.0:* users:(("teamviewerd",pid=608,fd=13))
LISTEN 0 4096 0.0.0.0:5355 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=12))
LISTEN 0 4096 127.0.0.54:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=20))
LISTEN 0 4096 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=393,fd=18))
LISTEN 0 128 [::]:22 [::]:* users:(("sshd",pid=483,fd=4))
LISTEN 0 128 [::1]:631 [::]:* users:(("cupsd",pid=482,fd=8))
LISTEN 0 4096 [::]:5355 [::]:* users:(("systemd-resolve",pid=393,fd=14))