netstat 없이 netstat 확인

1 개요

netstat 없이 netstat 확인

$ netstat -tnlp
bash: netstat: command not found
$ ss -tnlp
bash: ss: command not found
$ lsof
bash: lsof: command not found

declare -a array=($(tail -n +2 /proc/net/tcp | cut -d":" -f"3"|cut -d" " -f"1")) && for port in ${array[@]}; do echo $((0x$port)); done | sort -n | uniq

$ declare -a array=($(tail -n +2 /proc/net/tcp | cut -d":" -f"3"|cut -d" " -f"1")) && for port in ${array[@]}; do echo $((0x$port)); done | sort -n | uniq
22
80
111
443
944
6783
6784
8181
10245
10246
...

2 같이 보기

• 리눅스 ss
• 리눅스 netstat
• 리눅스 netstat 설치

3 참고

• https://www.commandlinefu.com/commands/view/15313/check-open-ports-without-netstat-or-lsof