\n\t#!\/bin\/bash<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #selinux\u914d\u7f6e#<\/span>\n<\/p>\n \n\t setenforce 0<\/span>\n<\/p>\n \n\t grep -iE 'SELINUX=enforcing' \/etc\/selinux\/config ; [ $? -eq 0 ] && sed -i 's\/SELINUX=enforcing\/SELINUX=disabled\/g' \/etc\/selinux\/config<\/span>\n<\/p>\n \n\t getenforce<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u9632\u706b\u5899 iptables \u914d\u7f6e#<\/span>\n<\/p>\n \n\t iptables -F<\/span>\n<\/p>\n \n\t \/etc\/init.d\/iptables save<\/span>\n<\/p>\n \n\t iptables -vnL <\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u7cbe\u7b80\u5f00\u673a\u81ea\u542f\u52a8\u670d\u52a1, \u521a\u88c5\u5b8c\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u53ea\u4fdd\u7559crond\uff0cnetwork\uff0crsyslog\uff0csshd\u8fd9\u56db\u4e2a\u670d\u52a1\u3002\uff08Centos6.7\u4e3arsyslog\uff09\u6b64\u547d\u4ee4\u672c\u4eba\u6ca1\u7ecf\u8fc7\u6d4b\u8bd5\uff0c\u8bf7\u614e\u7528#<\/span>\n<\/p>\n \n\t #for i in `chkconfig --list|grep 3:on|awk '{print $1}'` ; do chkconfig --level 3 ${i} off ; done<\/span>\n<\/p>\n \n\t #for j in crond rsyslog sshd network ; do chkconfig --level 3 ${j} on ; done<\/span>\n<\/p>\n \n\t #chkconfig --list|grep -iE "3:on"<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u53bb\u9664\u7cfb\u7edf\u53ca\u5185\u6838\u7248\u672c\u767b\u5f55\u524d\u7684\u5c4f\u5e55\u663e\u793a#<\/span>\n<\/p>\n \n\t >\/etc\/redhat-release<\/span>\n<\/p>\n \n\t >\/etc\/issue<\/span>\n<\/p>\n \n\t <\/span>\n<\/p>\n \n\t# #\u5220\u9664\u65e0\u7528\u7684\u7528\u6237\u548c\u7ec4#<\/span>\n<\/p>\n \n\t chattr -i \/etc\/passwd \/etc\/shadow \/etc\/group \/etc\/gshadow \/etc\/inittab<\/span>\n<\/p>\n \n\t for i in `awk -F : '{print $1}' \/etc\/passwd | grep -Ei 'adm|lp|sync|shutdown|halt|news|uucp|operator|games|gopher'` ; do userdel ${i} ; done<\/span>\n<\/p>\n \n\t for j in `awk -F : '{ print $1 }' \/etc\/group | grep -Ei 'adm|lp|news|uucp|games|dip|pppusers|popusers|slipusers'` ; do groupdel ${j} ; done<\/span>\n<\/p>\n \n\t <\/span>\n<\/p>\n \n\t# #\u53e3\u4ee4\u6587\u4ef6\u52a0\u9501,\u5f53\u9700\u8981\u6539\u5bc6\u7801\u7684\u65f6\u5019\uff0c\u8981\u5148\u89e3\u9501shadow\u6587\u4ef6: chattr -i filename#<\/span>\n<\/p>\n \n\t chattr +i \/etc\/passwd \/etc\/shadow \/etc\/group \/etc\/gshadow \/etc\/inittab<\/span>\n<\/p>\n \n\t lsattr \/etc\/passwd \/etc\/shadow \/etc\/group \/etc\/gshadow \/etc\/inittab<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u5220\u9664\u591a\u4f59\u767b\u5f55\u7ec8\u7aef#<\/span>\n<\/p>\n \n\t sed -i -r -e '\/^tty[2-9]|^tty1[0-1]\/ s\/^\/#\/g' \/etc\/securetty<\/span>\n<\/p>\n \n\t cat \/etc\/securetty<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u8c03\u6574\u6587\u4ef6\u63cf\u8ff0\u7b26\u5927\u5c0f#<\/span>\n<\/p>\n \n\t ulimit -n<\/span>\n<\/p>\n \n\t sed -i -e '\/^* - nofile\/d' -e '\/^#* - nofile\/d' \/etc\/security\/limits.conf ; sed -i -e '$a\\* - nofile 65000' \/etc\/security\/limits.conf<\/span>\n<\/p>\n \n\t tail \/etc\/security\/limits.conf<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u4fee\u6539\u5185\u6838\u7f51\u7edc\u76f8\u5173\u53c2\u6570\uff0c\u614e\u7528,\u53e6\uff0c\u8bf7\u5728Linux\u7cfb\u7edf\u5b89\u88c5\u5b8c\u540e\u6267\u884c\u6b64\u547d\u4ee4#<\/span>\n<\/p>\n \n\t[ -n \"`grep -iE \"max_tw_buckets|tw_recycle|syn_retries|backlog\" \/etc\/sysctl.conf`\" ] || cat >>\/etc\/sysctl.conf <<END<\/span>\n<\/p>\n \n\t#########################<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_syn_retries = 1<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_synack_retries = 1<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_keepalive_time = 600<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_keepalive_probes = 3<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_keepalive_intvl =15<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_retries2 = 5<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_fin_timeout = 2<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_max_tw_buckets = 36000<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_tw_recycle = 1<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_tw_reuse = 1<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_max_orphans = 32768<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_syncookies = 1<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_max_syn_backlog = 16384<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_wmem = 8192 131072 16777216<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_rmem = 32768 131072 16777216<\/span>\n<\/p>\n \n\tnet.ipv4.tcp_mem = 786432 1048576 1572864<\/span>\n<\/p>\n \n\tnet.ipv4.ip_local_port_range = 1024 65000<\/span>\n<\/p>\n \n\tnet.ipv4.ip_conntrack_max = 65536<\/span>\n<\/p>\n \n\tnet.ipv4.netfilter.ip_conntrack_max=65536<\/span>\n<\/p>\n \n\tnet.ipv4.netfilter.ip_conntrack_tcp_timeout_established=180<\/span>\n<\/p>\n \n\tnet.core.somaxconn = 16384<\/span>\n<\/p>\n \n\tnet.core.netdev_max_backlog = 16384<\/span>\n<\/p>\n \n\tEND<\/span>\n<\/p>\n \n\t <\/span>\n<\/p>\n \n\t sysctl -p<\/span>\n<\/p>\n \n\t tail \/etc\/sysctl.conf<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u8bbe\u7f6e\u7528\u6237\u767b\u5f55\u7a7a\u95f2\u8d85\u65f6\u65f6\u95f4\uff0c\u6b64\u5904\u662f7200\u79d2\uff0c\u53ef\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u800c\u5b9a\uff0c\u6ce8\u9500\u7528\u6237\uff0c\u518d\u7528\u8be5\u7528\u6237\u767b\u5f55\u6fc0\u6d3b\u8be5\u529f\u80fd#<\/span>\n<\/p>\n \n\t sed -i -e '\/^#export TMOUT\/d' -e '\/^export TMOUT\/d' \/etc\/profile ; sed -i -e '$a\\export TMOUT=7200' \/etc\/profile<\/span>\n<\/p>\n \n\t <\/span>\n<\/p>\n \n\t# #\u8bbe\u7f6e\u7528\u6237\u5386\u53f2\u547d\u4ee4\u884c\u4fdd\u7559\u6570\u76ee100#<\/span>\n<\/p>\n \n\t sed -i -e '\/^#HISTSIZE\/d' -e '\/^HISTSIZE\/d' \/etc\/profile ; sed -i -e '$a\\HISTSIZE=100' \/etc\/profile <\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# ssh\u670d\u52a1\u7aef\u8bbe\u7f6e<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t #\u7981\u7528root\u767b\u5f55 permitrootlogin no#<\/span>\n<\/p>\n \n\t \\cp -f \/etc\/ssh\/sshd_config \/etc\/ssh\/sshd_config.bak<\/span>\n<\/p>\n \n\t sed -i -e '\/^#PermitRootLogin\/d' -e '\/^PermitRootLogin\/d' \/etc\/ssh\/sshd_config ; sed -i -e '$a\\PermitRootLogin no' \/etc\/ssh\/sshd_config<\/span>\n<\/p>\n \n\t #\u6dfb\u52a0\u5141\u8bb8\u767b\u5f55\u7684\u7528\u6237 allowusers pc#<\/span>\n<\/p>\n \n\t sed -i -e '\/^AllowUsers\/d' -e '\/^#AllowUsers\/d' \/etc\/ssh\/sshd_config ; sed -i -e '$a\\AllowUsers pc' \/etc\/ssh\/sshd_config<\/span>\n<\/p>\n \n\t #\u4f7f\u7528protocol 2\u534f\u8bae#<\/span>\n<\/p>\n \n\t sed -i -e '\/^Protocol 2\/d' -e '\/^#Protocol 2\/d' \/etc\/ssh\/sshd_config ; sed -i -e '$a\\Protocol 2' \/etc\/ssh\/sshd_config<\/span>\n<\/p>\n \n\t #\u4fee\u6539\u7aef\u53e3\u4e3a50218\uff0c\u6216\u8005\u4f60\u6307\u5b9a\u7684\u7aef\u53e3\uff0c\u6700\u597d\u5927\u4e8e30000#<\/span>\n<\/p>\n \n\t sed -i -e '\/^Port\/d' -e '\/^#Port\/d' \/etc\/ssh\/sshd_config ; sed -i -e '$a\\Port 50218' \/etc\/ssh\/sshd_config<\/span>\n<\/p>\n \n\t #\u91cd\u542fsshd\u670d\u52a1#<\/span>\n<\/p>\n \n\t service sshd reload<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t# #\u5347\u7ea7openssh\u670d\u52a1\u7aef\uff0c\u52a0\u56fa\u5b89\u5168\uff0cupgrade openssh#<\/span>\n<\/p>\n \n\t #\u68c0\u6d4bssh\u7248\u672c\uff0c\u5982\u679c\u5df2\u7ecf\u662f7.2p2\u7248\u672c\uff0c\u8bf7\u4e0d\u8981\u6267\u884c\u5347\u7ea7#<\/span>\n<\/p>\n \n\t ssh -V<\/span>\n<\/p>\n \n\t <\/span>\n<\/p>\n \n\t #1 \u5b89\u88c5openssh\u8f6f\u4ef6\u7684\u6240\u9700\u4f9d\u8d56\u5305#<\/span>\n<\/p>\n \n\t yum -y install telnet telnet-server openssl openssl-devel zlib zlib-devel pam-devel<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t #2 \u914d\u7f6etelnet\u670d\u52a1\u4ee5\u4fbf\u4e8e\u5378\u8f7d\u8001\u7248\u672copenssh\u540e\u7684\u8fdc\u7a0b\u8fde\u63a5<\/span>\n<\/p>\n \n\t sed -r -i -e ‘\/disable\/ s\/yes\/no\/g’ \/etc\/xinetd.d\/telnet<\/span>\n<\/p>\n \n\t ## \u542f\u52a8telnet\u670d\u52a1<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t service xinetd start<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t ##\u6682\u65f6\u4e0d\u9000\u51fassh\u8fde\u63a5\uff0c\u4e00\u822c\u5347\u7ea7\u7684\u65f6\u5019\u4e0d\u4f1a\u65ad\u5f00ssh\u8fde\u63a5\uff0c\u5efa\u4e2aTelnet\u670d\u52a1\u53ea\u662f\u4ee5\u9632\u4e07\u4e00\u3002<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t #3 \u5378\u8f7d\u5c31openssh\u4ee5\u53ca\u76f8\u5173\u4f9d\u8d56\u5305<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t rpm -e --nodeps --allmatches `rpm -qa|grep openssh`<\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t #4 \u5b98\u7f51\u4e0b\u8f7dopenssh\u6700\u65b0\u7248\u672c,\u76ee\u524d\uff082016-07\uff09\u6700\u65b0\u7684\u662f7.2p2\u5230\/tmp\u76ee\u5f55,wget\u65b9\u5f0f\u5b98\u7f51\u4e0b\u8f7d\u901f\u5ea6\u6709\u70b9\u6162\uff0c\u5efa\u8bae\u5148\u7528\u6d4f\u89c8\u5668\u4e0b\u8f7d<\/span>\n<\/p>\n \n\t #wget -c -P \/tmp http:\/\/openbsd.cs.toronto.edu\/pub\/OpenBSD\/OpenSSH\/portable\/openssh-7.2p2.tar.gz<\/span>\n<\/p>\n \n\t wget -c -P \/tmp https:\/\/peloo.net\/download\/openssh-7.2p2.tar.gz <\/span>\n<\/p>\n \n\t \n<\/p>\n \n\t #5 \u7f16\u8bd1\u5b89\u88c5openssh<\/span>\n<\/p>\n \n\t cd \/tmp\/<\/span>\n<\/p>\n \n\t tar zxvf openssh-7.2p2.tar.gz<\/span>\n<\/p>\n \n\t cd openssh-7.2p2<\/span>\n<\/p>\n \n\t .\/configure --prefix=\/usr --sysconfdir=\/etc\/ssh --with-zlib --with-ssl --with-md5-passwords --mandir=\/usr\/share\/man --with-pam<\/span>\n<\/p>\n \n\t make && make install<\/span>\n<\/p>\n \n\t ## \u590d\u5236\u542f\u52a8\u6587\u4ef6\u5230\/etc\/init.d<\/span>\n<\/p>\n \n\t \\cp -v contrib\/redhat\/sshd.init \/etc\/init.d\/sshd<\/span>\n<\/p>\n \n\t chmod +x \/etc\/init.d\/sshd<\/span>\n<\/p>\n \n\t chkconfig --add sshd<\/span>\n<\/p>\n \n\t chkconfig sshd on<\/span>\n<\/p>\n \n\t #6 \u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u5efa\u8bae\u914d\u7f6e\u4e0d\u5141\u8bb8root\u767b\u9646\uff0c\u6ce8\u610f\u63d0\u524d\u5efa\u7acbLinux\u7528\u6237<\/span>\n<\/p>\n \n\t sed -i -e '\/^PermitRootLogin\/d' -e '\/^#PermitRootLogin\/d' \/etc\/ssh\/sshd_config ; sed -i -e '$a\\PermitRootLogin no' \/etc\/ssh\/sshd_config<\/span>\n<\/p>\n \n\t service sshd restart<\/span>\n<\/p>\n \n\t ssh -V<\/span>\n<\/p>\n \n\t <\/p>\n","protected":false},"excerpt":{"rendered":" #!\/bin\/bash # #selinux\u914d\u7f6e# setenforce 0 grep -iE 'SELINUX=enforcing' \/etc\/selinux\/config ; [ $? -eq 0 ] && sed -i 's\/SELINUX=enforcing\/SELINUX=disabled\/g' \/etc\/selinux\/config getenforce # #\u9632\u706b\u5899 iptables \u914d\u7f6e# iptables -F \/etc\/init.d\/iptables save iptables -vnL # #\u7cbe\u7b80\u5f00\u673a\u81ea\u542f\u52a8\u670d\u52a1, \u521a\u88c5\u5b8c\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u53ea\u4fdd\u7559crond\uff0cnetwork\uff0crsyslog\uff0csshd\u8fd9\u56db\u4e2a\u670d\u52a1\u3002\uff08Centos6.7\u4e3arsyslog\uff09\u6b64\u547d\u4ee4\u672c\u4eba\u6ca1\u7ecf\u8fc7\u6d4b\u8bd5\uff0c\u8bf7\u614e\u7528# #for i in `chkconfig –list|grep 3:on|awk '{print $1}'` ; do…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-668","post","type-post","status-publish","format-standard","hentry","category-linux"],"aioseo_notices":[],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/posts\/668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/peloo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=668"}],"version-history":[{"count":10,"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/posts\/668\/revisions"}],"predecessor-version":[{"id":678,"href":"https:\/\/peloo.net\/index.php?rest_route=\/wp\/v2\/posts\/668\/revisions\/678"}],"wp:attachment":[{"href":"https:\/\/peloo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peloo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peloo.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}