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腳本是借鑒老男孩培訓機構的， 感謝感謝~? ?

mkdir -p /server/scripts cat >> /server/scripts/env.sh <<END #!/bin/bash #author Xiongchao #qq 704816384 #mail 704816384@qq.com #selinux off sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config setenforce 0 #iptables off /etc/init.d/iptables stop chkconfig iptables off #services chkconfig|egrep -v "crond|sshd|network|rsyslog|sysstat"|awk '{print "chkconfig",$1,"off"}'|bash #add users useradd oldboy echo "123456" |passwd --stdin oldboy \cp /etc/sudoers /etc/sudoers.ori echo "oldboy ALL=(ALL) NOPASSWD: ALL " >>/etc/sudoers tail -1 /etc/sudoers visudo -c #ntpdate ntpdate times.aliyun.com echo '#time sync ' >>/var/spool/cron/root echo '*/5 * * * * /usr/sbin/ntpdate times.aliyun.com >/dev/null 2>&1' >>/var/spool/cron/root crontab -l #ulimit echo '* - nofile 65535 ' >>/etc/security/limits.conf tail -1 /etc/security/limits.conf #kernel cat >>/etc/sysctl.conf<<EOF net.ipv4.tcp_fin_timeout = 2 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_keepalive_time = 600 net.ipv4.ip_local_port_range = 4000 65000 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.tcp_max_tw_buckets = 36000 net.ipv4.route.gc_timeout = 100 net.ipv4.tcp_syn_retries = 1 net.ipv4.tcp_synack_retries = 1 net.core.somaxconn = 16384 net.core.netdev_max_backlog = 16384 net.ipv4.tcp_max_orphans = 16384 #iptables net.nf_conntrack_max = 25000000 net.netfilter.nf_conntrack_max = 25000000 net.netfilter.nf_conntrack_tcp_timeout_established = 180 net.netfilter.nf_conntrack_tcp_timeout_time_wait = 120 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60 net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 120 EOF #yumrepo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.backup wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo END

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轉載于:https://my.oschina.net/u/3635512/blog/1629036

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