{"id":699,"date":"2002-12-05T01:07:33","date_gmt":"2002-12-05T01:07:33","guid":{"rendered":"http:\/\/dev.jblove.net\/?p=699"},"modified":"2002-12-05T01:07:33","modified_gmt":"2002-12-05T01:07:33","slug":"%ec%89%98%ec%83%81%ed%83%9c%ec%97%90%ec%84%9c-%ec%9b%b9%ec%84%9c%eb%b2%84-%ec%a0%91%ec%86%8d%ec%9e%90%ec%88%98-%ec%95%8c%ec%95%84%eb%82%b4%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/jblove.net\/?p=699","title":{"rendered":"\uc258\uc0c1\ud0dc\uc5d0\uc11c \uc6f9\uc11c\ubc84 \uc811\uc18d\uc790\uc218 \uc54c\uc544\ub0b4\uae30"},"content":{"rendered":"

\nnetstat -n|grep -F :80|egrep ‘(ESTAB|SYN)’|awk ‘{print $5}’|sed ‘s\/:[0-9]*\/\/’|sort -u|wc -l <\/p>\n

\uc258\uc0c1\ud0dc\uc5d0\uc11c \uc704\uc640 \uac19\uc774 \uce58\uc2dc\uba74 \ub429\ub2c8\ub2e4.<\/p>\n

=\uc218\uc815 \uc2dc\uc791=
\n\uc81c\uac00 \uc0dd\uac01\uc744 \ud574\ubcf4\ub2c8 \uba85\ub839\uc5b4\uc758 \uc124\uba85\uc774 \ud558\ub098\ub3c4 \uc548\ub4e4\uc5b4\uac14\uad70\uc694 ^\u3161^;;<\/p>\n

netstat \uc740 \ub124\ud2b8\uc6cc\ud06c\uc758 \uc0c1\ud669\uc744 \ub098\ud0c0\ub0b4\uc8fc\ub294 \uc720\ud2f8\ub9ac\ud2f0\uc785\ub2c8\ub2e4.
\n\uc635\uc158 -n\uc740 \uc7ac\ubd84\uc11d\uc744 \ud558\uc9c0 \uc54a\ub294\uc635\uc158\uc73c\ub85c \ube60\ub978 \uacb0\uacfc\ucd9c\ub825 \uc18d\ub3c4\ub97c \uac00\uc838\uc624\uc8e0.<\/p>\n

grep\ub294 \uc815\uaddc\ud45c\ud604\uc2dd\uc2dc \uc77c\uce58\ud558\ub294 \uc904\ub9cc\uc744 \ucd9c\ub825\ud558\ub294 \uc258\uc785\ub2c8\ub2e4.
\n-F\uc635\uc158\uc740 \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uaca0\ub2e4\ub294 \uc635\uc158\uc774\uace0.. “:80″\uc740 netstat\uc5d0\uc11c “:80″\uc744 \ud3ec\ud568\ud55c \uc904\ub9cc\uc744 \ucd9c\ub825\ud55c\ub2e4\ub294 \uac83\uc774\uc8e0.. \uc989. http\ud504\ub85c\ud1a0\ucf5c\ub9cc\uc744 \ucd9c\ub825\ud558\uaca0\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

egrep\ub294 grep -E \uc640 \uac19\uc740 \uac83\uc73c\ub85c \uc880\ub354 \ub9ce\uc740 \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc635\uc158\uc740 ‘(ESTAB|SYN)’ \uc73c\ub85c \uc8fc\uc5c8\ub294\ub370 \uc774\ub294 \uc815\uaddc\ud45c\ud604\uc2dd\uc73c\uc8e0.. \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \uc54c\uace0\uc2f6\uc73c\uc2dc\uba74 \uc544\ub798\uc758 URL\uc73c\ub85c..
\nhttp:\/\/kldp.org\/HOWTO\/html\/Adv-Bash-Scr-HOWTO\/x10468.html \uc744 \ucc38\uc870\ud558\uc138\uc694.<\/p>\n

awk \ub294 \uac01 \uc904\uc5d0\uc11c \uacf5\ubc31\uc744 \uae30\uc900\uc73c\ub85c \ud544\ub4dc\ub85c \ub098\ub204\uba70 ‘{print $5}’\ub294 5\ubc88\uc9f8 \ud544\ub4dc\ub9cc\uc744 \ucd9c\ub825\ud558\uaca0\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

sed \ub294 \ube44\ub300\ud654\ud615 \uc904\ub2e8\uc704 \ud3b8\uc9d1\uae30\uc785\ub2c8\ub2e4. \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \uc0ac\uc6a9\ud558\uba70 ‘s\/:[0-9]*\/\/’\uc635\uc158\uc744 \ubd84\ub9ac\ud558\uba74 s\/\/\/ \uc548\uc5d0 :[0-9]\uac00 \ub4e4\uc5b4\uac00\uc788\ub294 \uac83\uc73c\ub85c “s\/\uc774\uac83\/\/” \ub294 \uac01 \uc904\uc5d0\uc11c “\uc774\uac83”\uc774\ub77c\ub294 \uae00\uc790\ub9cc \uc9c0\uc6b4\ub2e4\ub294 \uac83\uc73c\ub85c \uc815\uaddc\ud45c\ud604\uc2dd :[0-9] \uc744 \ub098\ub220\ubcf4\uba74 “:” \uc73c\ub85c \uc2dc\uc791\ud558\ub294 \ubaa8\ub4e0 \uc22b\uc790\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.
\n([0-9]\ub294 \ubaa8\ub4e0 \uc22b\uc790\ub97c \uac00\ub9ac\ud0b4)<\/p>\n

sort\ub294 \ucc38 \uc720\uc6a9\ud55c \uc258\uc785\ub2c8\ub2e4. \ub9d0 \uadf8\ub300\ub85c \uc815\ub82c\ud55c\ub2e4\ub294 \uac83\uc778\ub370
\nprintf “1
\n5
\n3
\n“|sort \ub77c\uace0 \uc258\uc5d0\uc11c \ucc98\ubcf4\uba74 \uc21c\uc11c\ub300\ub85c 1,3,5\ub85c \ucd9c\ub825\ub418\ub294\uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\n\uc5ec\uae30\uc11c. \uc635\uc158 -u\ub294 \ucd9c\ub825 \ub0b4\uc6a9\uc774 \uac19\uc740 \uac83\uc740 \ud55c\ubc88\ub9cc \ucd9c\ub825\ud558\ub294\uac83\uc785\ub2c8\ub2e4.<\/p>\n

wc \uc774\uac83 \ub610\ud55c \ucc38 \uc720\uc6a9\ud55c \uc258\uc774\uc8e0 ~ \ub2e8\uc5b4\uc758 \uc218\ub97c \uc54c\uc544\ub0b4\ub294 \uac83\uc73c\ub85c \ud55c\uc904\uc5d0 \ud55c\ud574\uc11c\ub9cc \ub2e8\uc5b4\uc758 \uc218\ub97c \uc0d9\ub2c8\ub2e4. \uc774\ub97c \uc774\uc6a9\ud574\uc11c \uba87\uc904\uc774 \ub098\uc654\ub294\uc9c0\ub97c \uc54c\uc218\uc788\ub294\ub370 -\u3163 \uc635\uc158\uc744 \uc8fc\uba74 \uba87\uc904\uc774 \ucd9c\ub825\ub418\uc5c8\ub294\uc9c0\ub9cc\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n

\uc804\uccb4\uc801\uc73c\ub85c \ubd84\uc11d\uc744 \ud558\uba74
\nnetstat -n|grep -F :80|egrep ‘(ESTAB|SYN)’|awk ‘{print $5}’|sed ‘s\/:[0-9]*\/\/’|sort -u|wc -l
\n\uba85\ub839\uc740 netstat\uc720\ud2f8\uc744 \uc774\uc6a9\ud574\uc11c \ub124\ud2b8\uc6cc\ud06c\uc758 \uc0c1\ud669\uc744 \ucd9c\ub825\ud558\uace0 \uc774 \uc911\uc5d0 grep \ub97c \uc774\uc6a9\ud574 :80 \ubb38\uc790\ub9cc\uc744 \ub098\ud0c0\ub0b4\uace0\uc788\ub294 \uc904\ub9cc \ucd9c\ub825\ud558\uba70 egrep\ub97c \uc774\uc6a9\ud574 ESTAB\uc774\ub098 SYN\uc774\uc788\ub294 \uc904\ub9cc \ucd9c\ub825\ud558\uba70 awk\ub97c \uc774\uc6a9\ud574 \uc811\uc18d\ud558\uace0\uc788\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\ub9cc\uc744 \ud45c\uc2dc\ud558\uba70 sed\ub97c \uc774\uc6a9\ud574 \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \ud3ec\ud2b8\ub97c \uc81c\uac70\ud558\uace0 sort\ub97c \uc774\uc6a9\ud574\uc11c \uc911\ubcf5\ub41c IP\ub97c \uc81c\uac70\ud558\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc22b\uc790\ub9cc\uc744 \ucd9c\ub825\ud558\uae30\uc704\ud574 wc\ub97c \uc774\uc6a9\ud55c\uac83\uc785\ub2c8\ub2e4 ^\u3161^;;<\/p>\n","protected":false},"excerpt":{"rendered":"

netstat -n|grep -F :80|egrep ‘(ESTAB|SYN)’|awk ‘{print $5}’|sed ‘s\/:[0-9]*\/\/’|sort -u|wc -l \uc258\uc0c1\ud0dc\uc5d0\uc11c \uc704\uc640 \uac19\uc774 \uce58\uc2dc\uba74 \ub429\ub2c8\ub2e4. =\uc218\uc815 \uc2dc\uc791= \uc81c\uac00 \uc0dd\uac01\uc744 \ud574\ubcf4\ub2c8 \uba85\ub839\uc5b4\uc758 \uc124\uba85\uc774 \ud558\ub098\ub3c4 \uc548\ub4e4\uc5b4\uac14\uad70\uc694 ^\u3161^;; netstat \uc740 \ub124\ud2b8\uc6cc\ud06c\uc758 \uc0c1\ud669\uc744 \ub098\ud0c0\ub0b4\uc8fc\ub294 \uc720\ud2f8\ub9ac\ud2f0\uc785\ub2c8\ub2e4. \uc635\uc158 -n\uc740 \uc7ac\ubd84\uc11d\uc744 \ud558\uc9c0 \uc54a\ub294\uc635\uc158\uc73c\ub85c \ube60\ub978 \uacb0\uacfc\ucd9c\ub825 \uc18d\ub3c4\ub97c \uac00\uc838\uc624\uc8e0. grep\ub294 \uc815\uaddc\ud45c\ud604\uc2dd\uc2dc \uc77c\uce58\ud558\ub294 \uc904\ub9cc\uc744 \ucd9c\ub825\ud558\ub294 \uc258\uc785\ub2c8\ub2e4. -F\uc635\uc158\uc740 \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uaca0\ub2e4\ub294 \uc635\uc158\uc774\uace0.. “:80″\uc740 netstat\uc5d0\uc11c “:80″\uc744 \ud3ec\ud568\ud55c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[51],"tags":[],"class_list":["post-699","post","type-post","status-publish","format-standard","hentry","category-papa-php"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/jblove.net\/index.php?rest_route=\/wp\/v2\/posts\/699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jblove.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jblove.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jblove.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jblove.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=699"}],"version-history":[{"count":0,"href":"https:\/\/jblove.net\/index.php?rest_route=\/wp\/v2\/posts\/699\/revisions"}],"wp:attachment":[{"href":"https:\/\/jblove.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jblove.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jblove.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}