{"id":81,"date":"2026-01-22T05:40:53","date_gmt":"2026-01-22T05:40:53","guid":{"rendered":"https:\/\/blog.gpst.net.cn:4008\/?p=81"},"modified":"2026-01-28T06:24:16","modified_gmt":"2026-01-28T06:24:16","slug":"iptables-string%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84hex%e6%a0%bc%e5%bc%8f%e5%8c%96","status":"publish","type":"post","link":"https:\/\/opshub.com.cn\/?p=81","title":{"rendered":"iptables string\u5b57\u7b26\u4e32\u7684hex\u683c\u5f0f\u5316"},"content":{"rendered":"\n

echo -n \"XXXXXX\" |od --width=64 -t x1 |awk 'NR==1{gsub(\"0000000\",\"\",$0);gsub(\"2e\",\"03\",$0);gsub(\" \",\"\",$0);printf\"|%s|\\n\",$0}'<\/code><\/p>\n\n\n\n

\u8fd9\u6bb5\u547d\u4ee4\u7684\u6838\u5fc3\u4f5c\u7528\u662f\u628a\u6307\u5b9a\u7684\u5b57\u7b26\u4e32\uff08XXXXXX\uff09\u8f6c\u6362\u6210\u5341\u516d\u8fdb\u5236\u683c\u5f0f\uff0c\u7136\u540e\u5bf9\u7279\u5b9a\u7684\u5341\u516d\u8fdb\u5236\u503c\u505a\u66ff\u6362\uff0c\u6700\u540e\u53bb\u9664\u591a\u4f59\u5b57\u7b26\u5e76\u683c\u5f0f\u5316\u8f93\u51fa<\/p>\n\n\n\n

\u9010\u90e8\u5206\u89e3\u6790\uff1a<\/p>\n\n\n\n

# 1. echo -n “XXXXXX”\uff1a\u8f93\u51fa\u5b57\u7b26\u4e32”XXXXXX”\uff0c-n \u8868\u793a\u4e0d\u6362\u884c\uff08\u907f\u514d\u9ed8\u8ba4\u6dfb\u52a0\u7684\u6362\u884c\u7b26\u5e72\u6270\uff09<\/p>\n\n\n\n

# 2. |od –width=64 -t x1\uff1a\u7ba1\u9053\u7b26\u4f20\u9012\u8f93\u51fa\u7ed9od\u547d\u4ee4 # –width=64\uff1a\u6bcf\u884c\u663e\u793a64\u4e2a\u5b57\u8282\uff08\u907f\u514d\u6362\u884c\uff0c\u9002\u914d6\u5b57\u7b26\u8f93\u5165\uff09 # -t x1\uff1a\u4ee5\u5355\u5b57\u8282\u5341\u516d\u8fdb\u5236\u683c\u5f0f\u8f93\u51fa\uff08\u6bcf\u4e2a\u5b57\u7b26\u5bf9\u5e941\u4e2a\u5341\u516d\u8fdb\u5236\u503c\uff09<\/p>\n\n\n\n

# 3. |awk ‘…’\uff1a\u7ba1\u9053\u7b26\u4f20\u9012od\u7684\u8f93\u51fa\u7ed9awk\u5904\u7406\uff0c\u6838\u5fc3\u903b\u8f91\u5728\u5927\u62ec\u53f7\u5185 <\/p>\n\n\n\n

|awk ‘ <\/p>\n\n\n\n

NR==1{ # \u53ea\u5904\u7406\u7b2c\u4e00\u884c\u8f93\u51fa\uff08od\u7684\u7b2c\u4e00\u884c\u662f\u6709\u6548\u6570\u636e\uff0c\u540e\u7eed\u65e0\u5185\u5bb9\uff09 <\/p>\n\n\n\n

gsub(“0000000″,””,$0); # \u79fb\u9664od\u9ed8\u8ba4\u7684\u884c\u9996\u5730\u5740\u6807\u8bc6”0000000″<\/p>\n\n\n\n

gsub(“2e”,”03″,$0); # \u628a\u6240\u6709”2e”\uff08\u5341\u516d\u8fdb\u5236\u7684”.”\uff09\u66ff\u6362\u6210”03″<\/p>\n\n\n\n

gsub(” “,””,$0); # \u79fb\u9664\u6240\u6709\u7a7a\u683c\uff08od\u8f93\u51fa\u7684\u5341\u516d\u8fdb\u5236\u503c\u4e4b\u95f4\u6709\u7a7a\u683c\uff09<\/p>\n\n\n\n

printf”|%s|\\n”,$0; # \u683c\u5f0f\u5316\u8f93\u51fa\uff0c\u7ed9\u5904\u7406\u540e\u7684\u5b57\u7b26\u4e32\u524d\u540e\u52a0|\uff0c\u6362\u884c<\/p>\n\n\n\n

}<\/p>\n\n\n\n

‘<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

echo -n “XXXXXX” |od –width=64 -t x1 |awk ‘NR==1{gsub(“0000000″,””,$0);gsub(“2e”,”03″,$0);gsub(” “,””,$0);printf”|%s|\\n”,$0}’ \u8fd9\u6bb5\u547d\u4ee4\u7684\u6838\u5fc3\u4f5c\u7528\u662f\u628a\u6307\u5b9a\u7684\u5b57\u7b26\u4e32\uff08XXXXXX\uff09\u8f6c\u6362\u6210\u5341\u516d\u8fdb\u5236\u683c\u5f0f\uff0c\u7136\u540e\u5bf9\u7279\u5b9a\u7684\u5341\u516d\u8fdb\u5236\u503c\u505a\u66ff\u6362\uff0c\u6700\u540e\u53bb\u9664\u591a\u4f59\u5b57\u7b26\u5e76\u683c\u5f0f\u5316\u8f93\u51fa \u9010\u90e8\u5206\u89e3\u6790\uff1a # 1. echo -n “XXXXXX”\uff1a\u8f93\u51fa\u5b57\u7b26\u4e32”XXXXXX”\uff0c-n \u8868\u793a\u4e0d\u6362\u884c\uff08\u907f\u514d\u9ed8\u8ba4\u6dfb\u52a0\u7684\u6362\u884c\u7b26\u5e72\u6270\uff09 # 2. |od –width=64 -t x1\uff1a\u7ba1\u9053\u7b26\u4f20\u9012\u8f93\u51fa\u7ed9od\u547d\u4ee4 # –width=64\uff1a\u6bcf\u884c\u663e\u793a64\u4e2a\u5b57\u8282\uff08\u907f\u514d\u6362\u884c\uff0c\u9002\u914d6\u5b57\u7b26\u8f93\u5165\uff09 # -t x1\uff1a\u4ee5\u5355\u5b57\u8282\u5341\u516d\u8fdb\u5236\u683c\u5f0f\u8f93\u51fa\uff08\u6bcf\u4e2a\u5b57\u7b26\u5bf9\u5e941\u4e2a\u5341\u516d\u8fdb\u5236\u503c\uff09 # 3. |awk ‘…’\uff1a\u7ba1\u9053\u7b26\u4f20\u9012od\u7684\u8f93\u51fa\u7ed9awk\u5904\u7406\uff0c\u6838\u5fc3\u903b\u8f91\u5728\u5927\u62ec\u53f7\u5185 |awk ‘ NR==1{ # \u53ea\u5904\u7406\u7b2c\u4e00\u884c\u8f93\u51fa\uff08od\u7684\u7b2c\u4e00\u884c\u662f\u6709\u6548\u6570\u636e\uff0c\u540e\u7eed\u65e0\u5185\u5bb9\uff09 gsub(“0000000″,””,$0); # \u79fb\u9664od\u9ed8\u8ba4\u7684\u884c\u9996\u5730\u5740\u6807\u8bc6”0000000″ gsub(“2e”,”03″,$0); # \u628a\u6240\u6709”2e”\uff08\u5341\u516d\u8fdb\u5236\u7684”.”\uff09\u66ff\u6362\u6210”03″ gsub(” “,””,$0); # \u79fb\u9664\u6240\u6709\u7a7a\u683c\uff08od\u8f93\u51fa\u7684\u5341\u516d\u8fdb\u5236\u503c\u4e4b\u95f4\u6709\u7a7a\u683c\uff09 printf”|%s|\\n”,$0; # \u683c\u5f0f\u5316\u8f93\u51fa\uff0c\u7ed9\u5904\u7406\u540e\u7684\u5b57\u7b26\u4e32\u524d\u540e\u52a0|\uff0c\u6362\u884c } ‘<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-81","post","type-post","status-publish","format-standard","hentry","category-9"],"_links":{"self":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/81","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=81"}],"version-history":[{"count":3,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":84,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/81\/revisions\/84"}],"wp:attachment":[{"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opshub.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}