联通常用DNS：
202.102.224.68
202.102.227.68
阿里DNS：
223.5.5.5
电信：
222.85.85.85
CentOS7网卡配置：
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[root@centos7 ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens33 TYPE="Ethernet" PROXY_METHOD="none" BROWSER_ONLY="no" BOOTPROTO="static" DEFROUTE="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_FAILURE_FATAL="no" IPV6_ADDR_GEN_MODE="stable-privacy" NAME="ens33" UUID="772475e4-5aeb-426b-8e42-3b918d25d8e6" DEVICE="ens33" ONBOOT="yes" IPADDR=192.168.123.171 NETMASK=255.255.255.0 GATEWAY=192.168.123.1 |
CentOS7路由配置
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[root@centos7 ~]# cat /etc/resolv.conf # Generated by NetworkManager search stu.mc nameserver 222.85.85.85 nameserver 223.5.5.5 |
CentOS6网卡配置：
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[root@centos6 ~]#cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet UUID=2bd086a4-d50d-4491-bd63-94bb7a0560b8 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=static HWADDR=00:0C:29:B2:E8:00 DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" IPADDR=192.168.123.161 NETMASK=255.255.255.0 GATEWAY=192.168.123.1 |
CentOS6路由配置：
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[root@centos6 ~]#cat /etc/resolv.conf # Generated by NetworkManager search stu.mc # No nameservers found; try putting DNS servers into your # ifcfg files in /etc/sysconfig/network-scripts like so: # # DNS1=xxx.xxx.xxx.xxx # DNS2=xxx.xxx.xxx.xxx # DOMAIN=lab.foo.com bar.foo.com nameserver 222.85.85.85 nameserver 223.5.5.5 |
关闭防火墙：
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CentOS6: service iptables stop chkconfig iptables off CentOS7: systemctl stop firewalld systemctl disable firewalld |
SELinux
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临时关闭：setenforce 0 [root@centos6 ~]#cat /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=enforcing # SELINUXTYPE= can take one of these two values: # targeted - Targeted processes are protected, # mls - Multi Level Security protection. SELINUXTYPE=targeted |