安装完成服务器进行优化

这里由ubuntu 14.04 为例

1.1 ubuntu 14.04 系统初识安装优化

a.修改ssh配置文件，启动root用户ssh登录权限，并设置密码

b.关闭UseDNS，加速ssh登录

# vim /etc/ssh/sshd_config…PermitRootLogin yes…最后一行添加：UseDNS no

  保存退出后，重启ssh服务

#service ssh restart

退出重新登录即可

c.配置服务器静态ip（固定ip）

#ifconfig -a

 查看所有网卡，根据服务器上网线插入的网口，进行IP的配置如下：

# vim /etc/network/interfaces

auto eth0

iface eth0 inet static

        address 192.168.10.114/24

netmask 255.255.255.0

        gateway 192.168.10.250

        dns-nameservers 223.5.5.5 8.8.8.8

保存退出，重启网卡（有的版本的服务器重启网卡无效，需要整体重启）

#ifdown eth0 && ifup eth0   \\临时生效，重启服务器后永久生效。

d.修改apt源

# vim /etc/apt/sources.list

###阿里源###

#deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

#deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

#deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse

#deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse

#deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

#deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

#deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

#deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse

#deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse

#deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

###163源###

#deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

#deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse

#deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse

#deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse

#deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

修改完后，更新源

#apt-get update && apt-get upgrade