{"id":869,"date":"2024-07-30T11:17:57","date_gmt":"2024-07-30T03:17:57","guid":{"rendered":"https:\/\/halloworlds.cn\/?p=869"},"modified":"2024-07-30T11:22:41","modified_gmt":"2024-07-30T03:22:41","slug":"centos%e5%92%8credhat%e7%b3%bb%e7%bb%9f%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e5%8a%a0%e5%9b%ba%e7%ac%ac%e4%b8%80%e6%9c%9f","status":"publish","type":"post","link":"https:\/\/silverisky.com\/tutorial\/869.html","title":{"rendered":"Centos\u548cRedhat\u7cfb\u7edf\u670d\u52a1\u5668\u5b89\u5168\u52a0\u56fa\u7b2c\u4e00\u671f"},"content":{"rendered":"\n

\u4e00\u3001\u8eab\u4efd\u9274\u522b<\/h2>\n\n\n\n

a)\u5e94\u5bf9\u767b\u5f55\u7684\u7528\u6237\u8fdb\u884c\u8eab\u4efd\u6807\u8bc6\u548c\u9274\u522b<\/h3>\n\n\n\n

\u8eab\u4efd\u6807\u8bc6\u5177\u6709\u552f\u4e00\u6027\uff0c\u8eab\u4efd\u9274\u522b\u4fe1\u606f\u5177\u6709\u590d\u6742\u5ea6\u8981\u6c42\u5e76\u5b9a\u671f\u66f4\u6362\u3002<\/p>\n\n\n\n

\u53c2\u8003\u914d\u7f6e\u64cd\u4f5c\uff1a<\/strong><\/p>\n\n\n\n

\u2460<\/strong>\u3001\u53e3\u4ee4\u8fc7\u671f\u65f6\u95f4<\/p>\n\n\n\n

vim \/etc\/login.defs\n\u4fee\u6539\u4e0b\u5217\u53c2\u6570\u4e3a\u5efa\u8bae\u503c\nPASS_MAX_DAYS 90    #\u5bc6\u7801\u6709\u6548\u671f\u4e3a90\u5929\nPASS_MIN_DAYS 1     #\u5bc6\u7801\u6700\u77ed\u4fee\u6539\u65f6\u95f4\u4e3a1\u5929\nPASS_MIN_LEN 8      #\u5bc6\u7801\u6700\u5c0f\u957f\u5ea6\u4e3a8\u4f4d\nPASS_WARN_AGE 7     #\u5bc6\u7801\u8fc7\u671f\u63d0\u524d7\u5929\u63d0\u793a\u4fee\u6539\n<\/code><\/pre>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u2461<\/strong>\u3001\u53e3\u4ee4\u590d\u6742\u5ea6<\/p>\n\n\n\n
vim \/etc\/pam.d\/system-auth\u6216\/etc\/pam.d\/common-password\npassword requisite pam_cracklib.so\u884c\u66ff\u6362\u6210\u5982\u4e0b\uff1a\npassword  requisite pam_cracklib.so retry=6  difok=3 minlen=8 ucredit=-1 lcredit=-1 dcredit=-1 ocredit=-1\n<\/code><\/pre>\n\n\n\n
\u53c2\u6570<\/strong><\/td>\u8bf4\u660e<\/strong><\/td><\/tr><\/thead>
retry<\/td>\u5c1d\u8bd5\u6b21\u6570<\/td><\/tr>
difok<\/td>\u6700\u5c11\u4e0d\u540c\u5b57\u7b26<\/td><\/tr>
minlen<\/td>\u6700\u5c0f\u5bc6\u7801\u957f\u5ea6<\/td><\/tr>
ucredit<\/td>\u6700\u5c11\u5927\u5199\u5b57\u6bcd<\/td><\/tr>
lcredit<\/td>\u6700\u5c11\u5c0f\u5199\u5b57\u6bcd<\/td><\/tr>
dcredit<\/td>\u6700\u5c11\u6570\u5b57<\/td><\/tr>
ocredit<\/td>\u6700\u5c11\u7279\u6b8a\u7b26\u53f7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u9664\u6b64\u4e4b\u5916\uff0c\u53e3\u4ee4\u590d\u6742\u5ea6\u8fd8\u53ef\u901a\u8fc7\/etc\/security\/pwquality.conf\u6587\u4ef6\u5b9e\u73b0\uff0c\u4e09\u79cd\u590d\u6742\u5ea6\u6ee1\u8db3\u4e00\u79cd\u5373\u53ef\u3002<\/p>\n\n\n\n
\u540c\u7406\u4f7f\u7528vim\u547d\u4ee4\u4fee\u6539\u5176\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n\n\n\n
\u53c2\u6570<\/strong><\/td>\u8bf4\u660e<\/strong><\/td><\/tr>
minlen=N<\/td>\u5b9a\u4e49\u7528\u6237\u5bc6\u7801\u7684\u6700\u5c0f\u957f\u5ea6\uff1b<\/td><\/tr>
dcredit=N<\/td>\u5b9a\u4e49\u7528\u6237\u5bc6\u7801\u4e2d\u5fc5\u987b\u5305\u542b\u591a\u5c11\u4e2a\u6570\u5b57\uff1b<\/td><\/tr>
ucredit=N<\/td>\u5b9a\u4e49\u7528\u6237\u5bc6\u7801\u4e2d\u5fc5\u987b\u5305\u542b\u591a\u5c11\u4e2a\u5927\u5199\u5b57\u6bcd\uff1b<\/td><\/tr>
lcredit=N<\/td>\u5b9a\u4e49\u7528\u6237\u5bc6\u7801\u4e2d\u5fc5\u987b\u5305\u542b\u591a\u5c11\u4e2a\u5c0f\u5199\u5b57\u6bcd\uff1b<\/td><\/tr>
ocredit=N<\/td>\u5b9a\u4e49\u7528\u6237\u5bc6\u7801\u4e2d\u5fc5\u987b\u5305\u542b\u591a\u5c11\u4e2a\u7279\u6b8a\u5b57\u7b26\uff08\u9664\u6570\u5b57\u3001\u5b57\u6bcd\u4e4b\u5916\uff09\uff1b<\/td><\/tr>
\u5176\u4e2dN=-1\u8868\u793a\u81f3\u5c11\u6709\u4e00\u4e2a\u3002<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u2462<\/strong>\u3001\u53e3\u4ee4\u81f3\u5c115\u6b21\u5185\u4e0d\u80fd\u91cd\u590d\uff08\u53ef\u9009\uff09<\/p>\n\n\n\n
vim \/etc\/pam.d\/system-auth\npassword    sufficient    pam_unix.so md5 shadow nullok try_first_pass use_authtok remember=5\n<\/code><\/pre>\n\n\n\n
\u5907\u6ce8\uff1asystem-auth\u548cpwquality.conf\u4e2d\u5bc6\u7801\u590d\u6742\u5ea6\u4f18\u5148\u7ea7\u9ad8\u4e8elogin.defs<\/strong><\/p>\n\n\n\n
b)\u5e94\u5177\u6709\u767b\u5f55\u5931\u8d25\u5904\u7406\u529f\u80fd<\/h3>\n\n\n\n
\u5e94\u914d\u7f6e\u5e76\u542f\u7528\u7ed3\u675f\u4f1a\u8bdd\u3001\u9650\u5236\u975e\u6cd5\u767b\u5f55\u6b21\u6570\u548c\u5f53\u767b\u5f55\u8fde\u63a5\u8d85\u65f6\u81ea\u52a8\u9000\u51fa\u7b49\u76f8\u5173\u63aa\u65bd\u3002<\/p>\n\n\n\n
\u4e00\u3001\u767b\u5f55\u5931\u8d25\u5904\u7406\u529f\u80fd\u53c2\u8003\u914d\u7f6e\u64cd\u4f5c\uff1a<\/strong><\/p>\n\n\n\n
\u2460<\/strong>\u3001\u9650\u5236\u672c\u5730\u767b\u5f55\u6b21\u6570<\/p>\n\n\n\n
vim \/etc\/pam.d\/login\n\u5728\u7b2c\u4e8c\u884c\u589e\u52a0\u5982\u4e0b\u5185\u5bb9\uff1a\nauth  required  pam_tally2.so  deny=3  unlock_time=600 even_deny_root root_unlock_time=600\n<\/code><\/pre>\n\n\n\n
\u2461<\/strong>\u3001\u9650\u5236ssh\u672c\u5730\u767b\u5f55\u6b21\u6570<\/p>\n\n\n\n
vim \/etc\/pam.d\/sshd\n\u5728\u7b2c\u4e8c\u884c\u589e\u52a0\u5982\u4e0b\u5185\u5bb9\uff1a\nauth  required  pam_tally2.so  deny=3  unlock_time=600 even_deny_root root_unlock_time=600\n<\/code><\/pre>\n\n\n\n
\u53c2\u6570<\/td>\u8bf4\u660e<\/td><\/tr><\/thead>
even_deny_root<\/td>\u4e5f\u9650\u5236root\u7528\u6237<\/td><\/tr>
deny<\/td>\u8bbe\u7f6e\u666e\u901a\u7528\u6237\u548croot\u7528\u6237\u8fde\u7eed\u9519\u8bef\u767b\u9646\u7684\u6700\u5927\u6b21\u6570\uff0c\u8d85\u8fc7\u6700\u5927\u6b21\u6570\uff0c\u5219\u9501\u5b9a\u8be5\u7528\u6237<\/td><\/tr>
unlock_time<\/td>\u8bbe\u5b9a\u666e\u901a\u7528\u6237\u9501\u5b9a\u540e\uff0c\u591a\u5c11\u65f6\u95f4\u540e\u89e3\u9501\uff0c\u5355\u4f4d\u662f\u79d2<\/td><\/tr>
root_unlock_time<\/td>\u8bbe\u5b9aroot\u7528\u6237\u9501\u5b9a\u540e\uff0c\u591a\u5c11\u65f6\u95f4\u540e\u89e3\u9501\uff0c\u5355\u4f4d\u662f\u79d2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u6ce81<\/strong>\uff1a\u5fc5\u987b\u5728 #%PAM-1.0 \u7684\u4e0b\u9762\uff0c\u5373\u7b2c\u4e8c\u884c\uff0c\u6dfb\u52a0\u5185\u5bb9\uff0c\u4e00\u5b9a\u8981\u5199\u5728\u524d\u9762\u3002\u5982\u679c\u5199\u5728\u540e\u9762\uff0c\u867d\u7136\u7528\u6237\u88ab\u9501\u5b9a\uff0c\u4f46\u662f\u53ea\u8981\u7528\u6237\u8f93\u5165\u6b63\u786e\u7684\u5bc6\u7801\uff0c\u8fd8\u662f\u53ef\u4ee5\u767b\u5f55\u7684\u3002<\/p>\n\n\n\n
\u6ce82<\/strong>\uff1a\u6b64\u5904\u4f7f\u7528\u7684\u662f pam_tally2 \u6a21\u5757\uff0c\u5982\u679c\u4e0d\u652f\u6301 pam_tally2 \u53ef\u4ee5\u4f7f\u7528 pam_tally \u6a21\u5757\u3002\u53e6\u5916\uff0c\u4e0d\u540c\u7684pam\u7248\u672c\uff0c\u8bbe\u7f6e\u53ef\u80fd\u6709\u6240\u4e0d\u540c\uff0c\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\uff0c\u53ef\u4ee5\u53c2\u7167\u76f8\u5173\u6a21\u5757\u7684\u4f7f\u7528\u89c4\u5219\u3002<\/p>\n\n\n\n
\u4e8c\u3001\u767b\u5f55\u8d85\u65f6\u53c2\u8003\u914d\u7f6e\u64cd\u4f5c\uff1a<\/strong><\/p>\n\n\n\n
\u2460<\/strong>\u3001\u901a\u8fc7\u4fee\u6539\u8d26\u6237\u4e2d TMOUT\u53c2\u6570\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6b64\u529f\u80fd\u3002\u7f16\u8f91 \/etc\/profile \u6587\u4ef6\uff0c\u5728\u540e\u9762\u52a0\u5165TMOUT\u503c\uff1a<\/p>\n\n\n\n
vim \/etc\/profile\nTMOUT=180         #\u8868\u793a 180 \u79d2\nexport TMOUT\t  #\u8bbe\u7f6e\u4e3a\u5168\u5c40\u53d8\u91cf\n# source \/etc\/profile  #\u4f7f\u914d\u7f6e\u751f\u6548\n<\/code><\/pre>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u8fd9\u6837\uff0c\u5982\u679c\u7cfb\u7edf\u4e2d\u767b\u5f55\u7684\u7528\u6237\u5728 3 \u5206\u949f\u5185\u90fd\u6ca1\u6709\u52a8\u4f5c\uff0c\u90a3\u4e48\u7cfb\u7edf\u4f1a\u81ea\u52a8\u6ce8\u9500\u8fd9\u4e2a\u8d26\u6237\u3002<\/p>\n\n\n\n
\u2461<\/strong>\u3001ssh\u8fde\u63a5\u8d85\u65f6<\/p>\n\n\n\n
\u901a\u8fc7\u4fee\u6539ssh\u7684\u914d\u7f6e\u6587\u4ef6 \/etc\/ssh\/sshd_config\u6211\u4eec\u540c\u6837\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u8d85\u65f6\u81ea\u52a8\u767b\u51fa\u529f\u80fd\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n\n\n\n
vim \/etc\/ssh\/sshd_config\nClientAliveInterval 90\nClientAliveCountMax 2\n# systemctl restart sshd  #\u91cd\u542f\u670d\u52a1\u4f7f\u914d\u7f6e\u751f\u6548\n<\/code><\/pre>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u8fd9\u79cd\u65b9\u6cd5\u5bf9\u9664\u4e86root\u4e4b\u5916\u7684\u6240\u6709\u7528\u6237\u90fd\u662f90\u79d2\u767b\u5f55\u8d85\u65f6\uff0c\u81ea\u52a8\u767b\u51fa\u3002\u7b2c\u4e00\u884c\u8868\u793a\u6bcf90\u79d2\u68c0\u6d4b\u4e00\u6b21\uff0c\u7b2c\u4e8c\u884c\u8868\u793a\u68c0\u6d4b\u52302\u6b21\u4e0d\u6d3b\u52a8\u5c31\u65ad\u5f00\u8fde\u63a5\u3002<\/p>\n\n\n\n
\u5f53\u7136\uff0c\u82e5\u4ec5\u901a\u8fc7\u5821\u5792\u673a\u7ba1\u7406\u670d\u52a1\u5668\uff0c\u5821\u5792\u673a\u5f00\u542f\u4e86\u8fde\u63a5\u670d\u52a1\u5668\u8d85\u65f6\u81ea\u52a8\u9000\u51fa\u529f\u80fd\u4e5f\u53ef\u7ed9\u5230\u7b26\u5408\u3002<\/p>\n\n\n\n
c)\u5f53\u8fdb\u884c\u8fdc\u7a0b\u7ba1\u7406\u65f6<\/h3>\n\n\n\n
    \n
  • \u5e94\u91c7\u53d6\u5fc5\u8981\u63aa\u65bd\u9632\u6b62\u9274\u522b\u4fe1\u606f\u5728\u7f51\u7edc\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u88ab\u7a83\u542c\uff1b<\/li>\n<\/ul>\n\n\n\n
    \u82e5\u64cd\u4f5c\u7cfb\u7edf\u53ea\u5728\u672c\u5730\u7ba1\u7406\u6216\u901a\u8fc7KVM\u7b49\u786c\u4ef6\u65b9\u5f0f\u7ba1\u7406\u5219\u8be5\u9879\u7b26\u5408\u3002\u5728\u8fdc\u7a0b\u7ba1\u7406\u65f6\u5982\u901a\u8fc7\u5821\u5792\u673a\u91c7\u7528SSH\u3001HTTPS\u534f\u8bae\u8fdb\u884c\u8fdc\u7a0b\u7ba1\u7406\u5219\u6ee1\u8db3\u672c\u6d4b\u8bc4\u9879\u8981\u6c42\u3002<\/p>\n\n\n\n
    \u82e5\u5f00\u542f\u8fdc\u7a0b\u7ba1\u7406\u5219\u9700\u8981\u5f00\u542fssh\u670d\u52a1\u5e76\u4ec5\u901a\u8fc7ssh\u534f\u8bae\u8fdb\u884c\u8fdc\u7a0b\u7ba1\u7406\uff0c\u5e76\u5173\u95edtelnet\u670d\u52a1\u3002<\/strong><\/p>\n\n\n\n
    \u2460<\/strong>\u3001\u5f00\u542fssh\u670d\u52a1<\/p>\n\n\n\n
    \u4f7f\u7528service sshd status \u6216\u8005 systemctl status sshd\u67e5\u770bssh\u670d\u52a1\u662f\u5426\u5df2\u5f00\u542f<\/p>\n\n\n\n
    \u82e5\u672a\u5f00\u542f\u76f8\u5e94\u670d\u52a1\u4f7f\u7528service sshd start \u6216 systemctl start sshd<\/p>\n\n\n\n
    \"\"\/<\/figure>\n\n\n\n
    \u5907\u6ce8\uff1asystemctl\u547d\u4ee4\u517c\u5bb9\u4e86service<\/strong><\/p>\n\n\n\n
    \u2461<\/strong>\u3001\u5173\u95edtelnet\u670d\u52a1\uff08\u82e5\u672a\u5b89\u88c5telnet\u670d\u52a1\u53ef\u5ffd\u7565\uff09<\/strong><\/p>\n\n\n\n
    \u901a\u8fc7\u4fee\u6539telnet\u670d\u52a1\u7684\u914d\u7f6e\u6587\u4ef6 \/etc\/xinetd.conf\uff0c\uff08centos7\u548credhat7\u4e4b\u524d\u7248\u672c\u7684\u914d\u7f6e\u6587\u4ef6\u4e3a\/etc\/xinetd.d\/telnet<\/strong>\uff09\uff0c\u9700\u8981\u628adisable\u6539\u6210yes\u4ee5\u5173\u95edtelnet\u670d\u52a1\u3002<\/p>\n\n\n\n
    vim \/etc\/xinetd.conf\ndisable = yes\n# systemctl restart xinetd  #\u91cd\u542f\u670d\u52a1\u4f7f\u914d\u7f6e\u751f\u6548\n<\/code><\/pre>\n\n\n\n
    \"\"\/<\/figure>\n","protected":false},"excerpt":{"rendered":"
    \u4e00\u3001\u8eab\u4efd\u9274\u522b a)\u5e94\u5bf9\u767b\u5f55\u7684\u7528\u6237\u8fdb\u884c\u8eab\u4efd\u6807\u8bc6\u548c\u9274\u522b \u8eab\u4efd\u6807\u8bc6\u5177\u6709\u552f\u4e00\u6027\uff0c\u8eab\u4efd\u9274\u522b\u4fe1\u606f\u5177\u6709\u590d\u6742\u5ea6\u8981\u6c42\u5e76\u5b9a\u671f\u66f4\u6362\u3002 \u53c2\u8003\u914d\u7f6e\u64cd\u4f5c\uff1a \u2460 …<\/p>\n","protected":false},"author":1,"featured_media":871,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","fifu_image_url":"https:\/\/www.321.net\/uploads\/day_210805\/202108051447007541.jpg","fifu_image_alt":"","footnotes":""},"categories":[23],"tags":[95,112,111,110,78],"class_list":["post-869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorial","tag-centos","tag-redhat","tag-111","tag-110","tag-78"],"_links":{"self":[{"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/posts\/869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/comments?post=869"}],"version-history":[{"count":3,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/posts\/869\/revisions"}],"predecessor-version":[{"id":874,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/posts\/869\/revisions\/874"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/media\/871"}],"wp:attachment":[{"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/media?parent=869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/categories?post=869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/silverisky.com\/wp-json\/wp\/v2\/tags?post=869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}