创建NFS服务器：
# optimization by onekey
sed -i ‘s#SELINUX=enforcing#SELINUX=disabled#‘ /etc/selinux/config
grep SELINUX=disabled /etc/selinux/config
setenforce 0
getenforce
/etc/init.d/iptables stop
/etc/init.d/iptables stop
chkconfig iptables off
chkconfig|egrep -v "crond|sshd|network|rsyslog|sysstat"|awk ‘{print "chkconfig",$1,"off"}‘|bash
useradd oldboy
\cp /etc/sudoers /etc/sudoers.bak
echo "oldboy ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
tail -l /etc/sudoers
visudo -c
echo ‘export TMOUT=1800‘ >> /etc/profile
echo ‘export HISTSIZE=5‘ >> /etc/profile
echo ‘export HISTFILESIZE=5‘ >> /etc/profile
. /etc/profile
echo ‘* - nofile 65535‘ >> /etc/security/limits.conf
echo ">/etc/udev/rules.d/70-persistent-net.rules" >>/etc/rc.local
#about selinux
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.netdv_max_backlog = 16384
net.ipv4.tcp_max_orphans = 16384
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
#set ip and hosts for nfs
cat >/etc/sysconfig/network-scripts/ifcfg-eth0<<EOF
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.0.0.31
NETSK=255.255.255.0
GATEWAY=10.0.0.2
nameserver=202.96.128.86
EOF
cat >/etc/sysconfig/network-scripts/ifcfg-eth1 <<EOF
DEVICE=eth1
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
IPADDR=172.16.1.31
NETSK=255.255.255.0
EOF
cat >/etc/sysconfig/network<<EOF
NETWORKING=yes
HOSTNAME=nfs01
EOF
hostname nfs01
cat >/etc/hosts <<EOF
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.1.5 lb01
172.16.1.6 lb02
172.16.1.7 web02
172.16.1.8 web01
172.16.1.31 nfs01
172.16.1.41 backup
172.16.1.51 db01
172.16.1.61 m01
EOF
#/etc/init.d/network reload
#make some dir
mkdir -p /server/scripts /server/tools /application /data
reboot
====================================================================================================
#yum repo and epel
yum -y install wget
\cp /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
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
yum clean all
yum makecache
#setup some tools and develpment
yum -y install lrzsz nmap tree dos2unix nc wget
yum groupinstall -y "Base" "Compatibility libraries" "Debugging Tools" "Development tools"
#set ntp cron
echo ‘#time sync by NTP Server at 20170608‘ >>/var/spool/cron/root
echo ‘*/5 * * * * /usr/sbin/ntpdate 172.16.1.61 >/dev/null 2>&1‘ >>/var/spool/cron/root
crontab -l
#tar configs for every server rsync to backup
#install rsync
yum -y install rsync
#create passwordfile
echo "oldboy" >/etc/rsync.password
chmod 600 /etc/rsync.password
cat >/server/scripts/bak.sh <<EOF
#!/bin/sh
##create by 20has at 2017-5-18
IP=\$(ifconfig eth1|awk -F "[ :]+" ‘NR==2{print \$4}‘)
TIME=\$(date +%F)
mkdir -p /backup/\$IP
cd / && \
tar -zcfh /backup/\$IP/\$TIME.tar.gz var/spool/cron/root etc/rc.local server/scripts etc/sysconfig/iptables
md5sum /backup/\$IP/\$TIME.tar.gz >/backup/\$IP/flag.log
rsync -az /backup/ [email protected]::backup --password-file=/etc/rsync.password
#del
find /backup -type f -name "*.tar.gz" -mtime +7 |xargs rm -f
EOF
#add cron to rsync backup
echo ‘#add cron to rsync backup at 20170608‘ >>/var/spool/cron/root
echo ‘00 00 * * * /bin/sh /server/scripts/bak.sh &>/dev/null‘ >>/var/spool/cron/root
#setup nfs
#install rsync
yum -y install nfs-utils rpcbind
rpm -qa nfs-utils rpcbind
cat >/etc/exports<<EOF
#share /data by 20has for oldboy at 20170608
/data 172.16.1.0/24(rw,sync,all_squash,anonuid=888,anongid=888)
EOF
/etc/init.d/rpcbind start
chkconfig rpcbind on
chkconfig --list rpcbind
netstat -lntup |grep rpc
/etc/init.d/nfs start
chkconfig nfs on
chkconfig --list nfs
#rpcinfo -p localhost
useradd www -u888 -s /sbin/nologin -M
chown -R www.www /data
/etc/init.d/nfs reload
showmount -e 172.16.1.31
#inotify+rsync
#install inotify-tools
yum -y install inotify-tools
cd /server/scripts/
cat >inotify.sh<<EOF
#!/bin/sh
Path=/data
IP=172.16.1.41
/usr/bin/inotifywait -mrq --format ‘%w%f‘ -e close_write,delete \$Path \
|while read file
do
if [ -f \$file ];then
rsync -az \$file --delete [email protected]\$IP::nfsbackup \
--password-file=/etc/rsync.password &
else
cd \$Path
rsync -az ./ --delete [email protected]\$IP::nfsbackup \
--password-file=/etc/rsync.password &
fi
done
EOF
#optimization inotify config youhua
echo 655350 >/proc/sys/fs/inotify/max_user_watches
echo 655350 >/proc/sys/fs/inotify/max_queued_events
echo "echo 655350 >/proc/sys/fs/inotify/max_user_watches" >>/etc/rc.local
echo "echo 655350 >/proc/sys/fs/inotify/max_queued_events" >>/etc/rc.local
cat /etc/rc.local
#start inotify.sh
/bin/sh inotify.sh
每台服务器配置定时打包rsync到backup；
先搞好nfs搭建；
再实现rsync到backup，实现inotify实时备份到backup。
改进：使用keeplive方式 把ip漂移到nfsbackup的data目录下面 然后在backup上建立个nfs，保证nfs非单点，高可用！ 此方法待实验（暂未完成）！
inotify.sh创建服务脚本，使用chkconfig管理 暂未成功！ （来自笔记：视频学习记录和规划day11）
客户端挂载nfs：
#install rsync
yum -y install nfs-utils rpcbind
rpm -qa nfs-utils rpcbind
LANG=en
/etc/init.d/rpcbind start
chkconfig rpcbind on
chkconfig --list rpcbind
mount -t nfs 172.16.131:/data /mnt
# cat /proc/mounts
echo "mount -t nfs 172.16.1.31:/data /mnt" >>/etc/rc.local #写入开机自动挂载nfs
客户端打包rsync+cron到backup：
#tar configs for every server rsync to backup
#install rsync
yum -y install rsync
#create passwordfile
echo "oldboy" >/etc/rsync.password
chmod 600 /etc/rsync.password
cat >/server/scripts/bak.sh <<EOF
#!/bin/sh
##create by 20has at 2017-5-18
IP=\$(ifconfig eth1|awk -F "[ :]+" ‘NR==2{print \$4}‘)
TIME=\$(date +%F)
mkdir -p /backup/\$IP
cd / && \
tar -zcfh /backup/\$IP/\$TIME.tar.gz var/spool/cron/root etc/rc.local server/scripts etc/sysconfig/iptables
md5sum /backup/\$IP/\$TIME.tar.gz >/backup/\$IP/flag.log
rsync -az /backup/ [email protected]::backup --password-file=/etc/rsync.password
#del
find /backup -type f -name "*.tar.gz" -mtime +7 |xargs rm -f
EOF
#add cron to rsync backup
echo ‘#add cron to rsync backup at 20170608‘ >>/var/spool/cron/root
echo ‘00 00 * * * /bin/sh /server/scripts/bak.sh &>/dev/null‘ >>/var/spool/cron/root