tail -f \/var\/log\/xxxxxx<\/p>\n\n\n\n
\u6dfb\u52a0\u7528\u6237
useradd test
passwd test<\/p>\n\n\n\n
root\u767b\u5f55\u5173\u95ed\uff0c\u4fee\u6539ssh\u767b\u5f55\u7aef\u53e3\u53f7
\/etc\/ssh\/sshd_config
PermitRootLogin no<\/p>\n\n\n\n
systemctl restart sshd.service<\/p>\n\n\n\n
\u6307\u5b9a\u7aef\u53e3\u767b\u5f55
ssh -p xxx xxx@xxx<\/p>\n\n\n\n
\u4e00\u822c\u7684linux\u670d\u52a1\u5668\u90fd\u6709\u81ea\u5e26\u7684\u9632\u706b\u5899iptables\u89c4\u5219\uff0c\u628a\u7aef\u53e310000 \u5728\u89c4\u5219\u4e2d\u8bbe\u7f6e\u5907\u653e\u884c\u3002<\/p>\n\n\n\n
iptables -I INPUT -p tcp --dport 10000 -j ACCEPT \/\/\u4fee\u6539\u9632\u706b\u5899\u914d\u7f6e\\\n\n\u8bbe\u7f6esudo\n\nlinux\u5982\u4f55\u914d\u7f6e\u666e\u901a\u7528\u6237\uff08\u975eroot\u7528\u6237\uff09\u7684sudo\u6743\u9650\nsudo\u662f\u4e3a\u6240\u6709\u60f3\u4f7f\u7528root\u6743\u9650\u7684\u666e\u901a\u7528\u6237\u8bbe\u8ba1\u7684\u3002\u53ef\u4ee5\u8ba9\u666e\u901a\u7528\u6237\u5177\u6709\u4e34\u65f6\u4f7f\u7528root\u6743\u9650\u7684\u6743\u5229\uff0c\u53ea\u9700\u8981\u666e\u901a\u7528\u6237\u8f93\u5165\u81ea\u5df1\u8d26\u6237\u7684\u5bc6\u7801\u5373\u53ef\u3002\u5f53\u7136\u8fd9\u4e2a\u666e\u901a\u7528\u6237\u5fc5\u987b\u5728\/etc\/sudoers\u6587\u4ef6\u4e2d\u5177\u6709\u914d\u7f6e\u9879\uff0c\u624d\u5177\u6709\u4f7f\u7528sudo\u7684\u6743\u5229\u3002\n\n\u6ca1\u6709\u914d\u7f6e\u6743\u9650\u4e4b\u524d\uff0c\u666e\u901a\u7528\u6237\u662f\u65e0\u6cd5\u8fdb\u884croot\u6743\u9650\u64cd\u4f5c\u7684\uff0c\u4e0b\u56fe\u7684user-1\u662f\u7528\u6237\u7684\u540d\u5b57\uff0c\u4f8b\u5982\u666e\u901a\u7528\u6237\u67e5\u770b\/root\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\uff1a\n\n\n\u4f7f\u7528root\u7528\u6237\u7f16\u8f91\/etc\/sudoers\u6587\u4ef6\uff0c\u7ed9\u666e\u901a\u7528\u6237\u6388\u6743\n\n\u547d\u4ee4\u884c\u8f93\u5165visudo\uff0c\u6253\u5f00\/etc\/sudoers\u6587\u4ef6\uff0c\u52a0\u5165\u5982\u4e0b\u7684\u5185\u5bb9\uff0cuser-1\u662f\u7528\u6237\u7684\u540d\u5b57\uff0c\u4fdd\u5b58\uff1a\n\n\u8fd9\u6837\u666e\u901a\u7528\u6237\u5c31\u53ef\u4ee5\u4f7f\u7528sudo\u6267\u884c\u9700\u8981root\u6743\u9650\u7684\u547d\u4ee4\u4e86\uff0c\u5982\u4e0b\uff1a\n\n sudo\u7684\u5de5\u4f5c\u8fc7\u7a0b\u5982\u4e0b\uff1a\n\n1. \u5f53\u7528\u6237\u6267\u884csudo\u65f6\uff0c\u7cfb\u7edf\u4f1a\u4e3b\u52a8\u5bfb\u627e\/etc\/sudoers\u6587\u4ef6\uff0c\u5224\u65ad\u8be5\u7528\u6237\u662f\u5426\u6709\u6267\u884csudo\u7684\u6743\u9650\n\n2. \u786e\u8ba4\u7528\u6237\u5177\u6709\u6267\u884csudo\u7684\u6743\u9650\u540e\uff0c\u8ba9\u7528\u6237\u8f93\u5165\u81ea\u5df1\u7684\u5bc6\u7801\u8fdb\u884c\u786e\u8ba4\n\n3. \u82e5\u5bc6\u7801\u8f93\u5165\u6210\u529f\uff0c\u5219\u5f00\u59cb\u6267\u884csudo\u540e\u7eed\u7684\u547d\u4ee4\n\n\u5982\u679c\u60f3\u8981\u66f4\u52a0\u7cbe\u51c6\u7684\u63a7\u5236\u666e\u901a\u7528\u6237\u4f7f\u7528sudo\u7684\u573a\u666f\uff0c\u5c31\u9700\u8981\u7406\u89e3\u914d\u7f6e\u4e2d\u7684\u542b\u4e49\u3002\n\nuser-1 ALL=(ALL) ALL\n\u7b2c\u4e00\u4e2aALL\u662f\u6307\u7f51\u7edc\u4e2d\u7684\u4e3b\u673a\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u4e3b\u673a\u540d\uff0c\u8fd9\u6837user-1\u7528\u6237\u53ea\u53ef\u4ee5\u5728\u6b64\u4e3b\u673a\u4e0a\u6267\u884c\u540e\u9762\u7684\u547d\u4ee4\u3002\u7b2c\u4e8c\u4e2a\u62ec\u53f7\u91cc\u7684ALL\u662f\u6307\u76ee\u6807\u7528\u6237\uff0c\u4e5f\u5c31\u662f\u4ee5\u8c01\u7684\u8eab\u4efd\u53bb\u6267\u884c\u547d\u4ee4\uff0c\u6700\u540e\u4e00\u4e2a\u547d\u4ee4\u6307\u547d\u4ee4\u540d\u79f0\u3002\n\n\u4f8b\u5982\uff0c\u6211\u4eec\u60f3\u8ba9user-1\u7528\u6237\u5728node-1\u4e3b\u673a\u4e0a\u4ee5allen\u7684\u8eab\u4efd\u6267\u884ckill\u547d\u4ee4\uff0c\u5c31\u53ef\u4ee5\u8fd9\u6837\u7f16\u5199\u914d\u7f6e\u6587\u4ef6\uff1a\n\nuser-1 node-1=(allen) \/bin\/kill\n\u6848\u4f8b\uff1a\u53ea\u5141\u8bb8user-1\u7528\u6237\u4ee5root\u8eab\u4efd\u5728node-1\u4e3b\u673a\u4e0a\u6267\u884cls\u3001cat\u547d\u4ee4\uff0c\u5e76\u4e14\u6267\u884c\u7684\u65f6\u5019\u514d\u8f93\u5165\u5bc6\u7801\u3002\n\n \u9700\u8981\u4fee\u6539\/etc\/sudoers\u914d\u7f6e\u6587\u4ef6\uff1a\n\nuser-1 node-1=NOPASSWD: \/bin\/ls,\/bin\/cat\n \n\u6b64\u65f6\u82e5user-1\u7528\u6237\u6267\u884c\u975els\u3001cat\u547d\u4ee4\u65f6\u4f1a\u88ab\u7981\u6b62\uff1a\n\n\u800cls\u547d\u4ee4\u5c31\u53ef\u4ee5\u6b63\u5e38\u6267\u884c\uff1a\n\n\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/czr11616\/article\/details\/9976746\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"tail -f \/var\/log\/xxxxxx \u6dfb\u52a0\u7528\u6237 useradd test passwd test r […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[16,59],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1168"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1168"}],"version-history":[{"count":8,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1168\/revisions"}],"predecessor-version":[{"id":4185,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1168\/revisions\/4185"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}