2024-08-26 11:55:58 +00:00
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# 1. netstat
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2024-08-25 15:21:39 +00:00
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deprecated
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2024-08-26 11:55:58 +00:00
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# 2. ss
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socket statistics
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```shell
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ss [options] [filter]
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```
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2024-08-26 11:55:58 +00:00
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## 2.1. basic
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listening 소켓을 제외하고 연결중인 모든 소켓 표시
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```shell
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ss
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```
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```
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Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
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u_str ESTAB 0 0 @37ef18770354690f/bus/systemd/bus-system 9789 * 10972
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u_str ESTAB 0 0 @855d8616477e9c56/bus/systemd-timesyn/bus-api-timesync 9317 * 6091
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u_str ESTAB 0 0 @248f58c9224923fa/bus/systemd-resolve/bus-api-resolve 9316 * 6090
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icmp6 UNCONN 0 0 *%enp1s0:ipv6-icmp *:*
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tcp ESTAB 0 0 192.168.200.10:microsoft-ds 192.168.200.100:49576
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tcp ESTAB 0 52 [::ffff:192.168.200.10]:ssh [::ffff:192.168.200.100]:49173
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```
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## 2.2. all
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모든 소켓 표시
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```shell
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ss -a
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```
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2024-08-26 11:55:58 +00:00
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## 2.3. numeric
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서비스 이름 대신 숫자로 표기
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```shell
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ss
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...
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[::ffff:192.168.200.10]:ssh
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```
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```shell
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ss -n
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...
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[::ffff:192.168.200.10]:22
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```
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2024-08-26 11:55:58 +00:00
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## 2.4. process
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관리자 권한 필요
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```shell
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ss -p
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Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
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tcp ESTAB 0 36 [::ffff:192.168.200.10]:ssh [::ffff:192.168.200.100]:49173 users:(("sshd",pid=3277,fd=4),("sshd",pid=3160,fd=4))
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```
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