linux服务器安全加固shell脚本.doc

linux服务器安全加固shell脚本#!/bin/sh# desc: setup linux system security# author:coralzd # powered by # version 0.1.2 written by 2011.05.03#account setuppasswd -l xfspasswd -l newspasswd -l nscdpasswd -l dbuspasswd -l vcsapasswd -l gamespasswd -l nobodypasswd -l avahipasswd -l haldaemonpasswd -l gopherpasswd -l ftppasswd -l mailnullpasswd -l pcappasswd -l mailpasswd -l shutdownpasswd -l haltpasswd -l uucppasswd -l operatorpasswd -l syncpasswd -l admpasswd -l lp# chattr /etc/passwd /etc/shadowchattr +i /etc/passwdchattr +i /etc/shadowchattr +i /etc/groupchattr +i /etc/gshadow# add continue input failure 3 ,passwd unlock time 5 minitesed -i s#auth required pam_env.so#auth required pam_env.sonauth required pam_tally.so onerr=fail deny=3 unlock_time=300nauth required /lib/security/$ISA/pam_tally.so onerr=fail deny=3 unlock_time=300# /etc/pam.d/system-auth# system timeout 5 minite auto logoutecho TMOUT=300 /etc/profile# will system save history command list to 10sed -i s/HISTSIZE=1000/HISTSIZE=10/ /etc/profile# enable /etc/profile go!source /etc/profile# add syncookie enable /etc/sysctl.confecho net.ipv4.tcp_syncookies=1 /etc/sysctl.confsysctl -p # exec sysctl.conf enable# optimizer sshd_configsed -i s/#MaxAuthTries 6/MaxAuthTries 6/ /etc/ssh/sshd_configsed -i s/#UseDNS yes/UseDNS no/ /etc/ssh/sshd_config# limit chmod important commandschmod 700 /bin/pingchmod 700 /usr/bin/fingerchmod 700 /usr/bin/whochmod 700 /usr/bin/wchmod 700 /usr/bin/locatechmod 700 /usr/bin/whereischmod 700 /sbin/ifconfigchmod 700 /usr/bin/picochmod 700 /bin/vichmod 700 /usr/bin/whichchmod 700 /usr/bin/gccchmod 700 /usr/bin/makechmod 700 /bin/rpmwww.ght.cc history securitychattr +a /root/.bash_historychattr +i /roo