瑕佹埑鐮磋繖涓敊璇粨璁? 鍙互浠庣悊璁哄拰瀹炶返涓ゆ柟闈㈡潵.
鐞嗚
緋葷粺閫氳繃涓涓洓鍏冪粍鏉ュ敮涓鏍囪瘑涓鏉CP榪炴帴. 榪欎釜鍥涘厓緇勭殑緇撴瀯鏄瘂local ip, local port, remote ip, remote port}, 瀵逛簬IPv4, 緋葷粺鐞嗚涓婃渶澶氬彲浠ョ鐞?^(32+16+32+16), 2鐨?6嬈℃柟涓繛鎺? 濡傛灉涓嶄粎浠呰冭檻TCP, 鍒欐槸涓涓簲鍏冪粍, 鍔犱笂鍗忚鍙?TCP, UDP鎴栬呭叾瀹?.
瀹炶返
鏈嶅姟鍣ㄧ粦瀹氫竴涓猧p:port, 鐒跺悗accept榪炴帴, 鎵鏈塧ccept鐨勮繛鎺ヤ嬌鐢ㄧ殑鏈湴鍦板潃涔熸槸鍚屾牱鐨刬p:port.
鎵╁睍鍐呭
濡傛灉鏌愪釜瀹㈡埛绔悜鍚屼竴涓猅CP绔偣(ip:port)鍙戣搗涓誨姩榪炴帴, 閭ｄ箞姣忎竴鏉¤繛鎺ラ兘蹇呴』浣跨敤涓嶅悓鐨勬湰鍦癟CP绔偣, 濡傛灉瀹㈡埛绔彧鏈変竴涓狪P鍒欐槸浣跨敤涓嶅悓鐨勬湰鍦扮鍙? 璇ョ鍙ｇ殑鑼冨洿鍦?nix緋葷粺涓婄殑涓涓緥瀛愭槸32768鍒?1000, 鍙互閫氳繃濡備笅鍛戒護鏌ョ湅:
[root@benegg.com ~]# cat /proc/sys/net/ipv4/ip_local_port_range 32768 61000
涔熷氨鏄, 涓涓鎴風榪炴帴鍚屼竴涓湇鍔″櫒(姣斿榪涜鍘嬪姏嫻嬭瘯), 鏈澶氬彲浠ュ彂璧?0000涓乏鍙崇殑榪炴帴.
TCP瀹㈡埛绔?TCP鐨勪富鍔ㄥ彂璧瘋?鍙互鍦ㄥ悓涓ip:port涓婂悜涓嶅悓鐨勬湇鍔″櫒鍙戣搗涓誨姩榪炴帴, 鍙渶鍦╞ind涔嬪墠瀵箂ocket璁劇疆SO_REUSEADDR閫夐」.
緋葷粺鏀寔鐨勬渶澶ф墦寮鏂囦歡鎻忚堪絎︽暟(鍖呮嫭socket榪炴帴):
[root@benegg.com ~]# cat /proc/sys/fs/file-max 580382
鍗曚釜榪涚▼鎵鑳芥墦寮鐨勬渶澶ф枃浠舵弿榪扮鏁?
[root@benegg.com ~]# ulimit -n 1024
緇撹
鏃犺鏄浜庢湇鍔″櫒榪樻槸瀹㈡埛绔? 璁や負”涓鍙版満鍣ㄦ渶澶氬緩绔?5536涓猅CP榪炴帴”鏄病鏈夋牴鎹殑, 鐞嗚涓婅繙榪滆秴榪囪繖涓?
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闃呰鍏ㄦ枃
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