尊龙凯时人生就是博

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ÔÚ linux ÖУ¬Éó²é°ëÅþÁ¬¶ÔÓ¦µÄÀú³ÌµÄÒªÁìÈçÏ£ºÊ¹Óà netstat ÏÂÁîÕÒ³ö°ëÅþÁ¬µÄ¶Ë¿Ú ¡£Ê¹Óà lsof ÏÂÁîÁгöʹÓøö˿ڵÄÀú³Ì ¡£

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ÔÚ Linux ϵͳÖУ¬°ëÅþÁ¬£¨HALF-CONN£©×´Ì¬ÌåÏÖ¿Í»§¶ËÒÑ·¢ËÍ SYN ÇëÇ󣬵«ÉÐδÊÕµ½Ð§ÀÍÆ÷µÄ SYN-ACK ÏìÓ¦ ¡£ÒªÉó²éÓë°ëÅþÁ¬¹ØÁªµÄÀú³Ì£¬¿ÉÒÔʹÓÃÒÔÏ°취£º

1. Éó²é°ëÅþÁ¬µÄ¶Ë¿Ú

ʹÓà netstat ÏÂÁîÁгöËùÓÐÍøÂçÅþÁ¬£¬²¢¹ýÂËÀ´ÓÉÓÚ°ëÅþÁ¬×´Ì¬µÄÅþÁ¬£º

netstat -an | grep "ESTAB"

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tcp        0      0 127.0.0.1:22         127.0.0.1:53230       ESTABLISHED
tcp        0      0 127.0.0.1:53230       127.0.0.1:22         ESTABLISHED
tcp        0      0 ::1:53230            ::1:22               ESTABLISHED
tcp        0      0 ::1:22               ::1:53230            ESTABLISHED

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2. ʹÓà lsof ²éÕÒÀú³Ì

ʹÓà lsof ÏÂÁîÁгöʹÓÃÌض¨¶Ë¿ÚµÄÀú³Ì£º

lsof -i :<port></port>

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COMMAND     PID USER   FD      TYPE             DEVICE SIZE/OFF NODE NAME
sshd        629 root    4u  IPv6 3850116765       0t0  TCP *:22 (LISTEN)
sshd        629 root    4u  IPv4 3854596615       0t0  TCP *:22 (LISTEN)
sshd        717 root   12u  IPv4 3849900729       0t0  TCP 127.0.0.1:53230-&gt;127.0.0.1:22 (ESTABLISHED)
sshd        733 root   11u  IPv4 3849900738       0t0  TCP 127.0.0.1:22-&gt;127.0.0.1:53230 (ESTABLISHED)
sshd        749 root   10u  IPv6 3850116766       0t0  TCP ::1:22-&gt;::1:53230 (ESTABLISHED)
sshd        765 root    9u  IPv6 3850116767       0t0  TCP ::1:53230-&gt;::1:22 (ESTABLISHED)

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