综合架构模板机优化指南:
vim /etc/profile
export PS1="[\[\e[34;1m\]\u@\[\e[0m\]\[\e[32;1m\]\H\[\e[0m\] \[\e[31;1m\]\w\[\e[0m\]]\\$ "
网卡配置：
eth0: 10.0.0.201 公网
eth1: 172.16.1.201 内网
[root@oldboyedu ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
BOOTPROTO=none
NAME=eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=10.0.0.201
PREFIX=24
GATEWAY=10.0.0.254
DNS1=10.0.0.254
[root@oldboyedu ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
TYPE=Ethernet
BOOTPROTO=static
IPADDR=172.16.1.201
PREFIX=24
NAME=eth1
DEVICE=eth1
ONBOOT=yes
[root@oldboyedu ~]# systemctl restart network
[root@oldboyedu ~]# ip a |grep 201
inet 10.0.0.201/24 brd 10.0.0.255 scope global noprefixroute eth0
inet 172.16.1.201/24 brd 172.16.1.255 scope global noprefixroute eth1
关闭selinux和firewalld NetworkManager
关闭firewalld 和NetworkManager
[root@oldboyedu ~]# systemctl stop firewalld NetworkManager
[root@oldboyedu ~]# systemctl disable firewalld NetworkManager
检查是否正在运行
systemctl is-active firewalld NetworkManager
检查是否开机自启动
systemctl is-enabled firewalld NetworkManager
[root@oldboyedu ~]# systemctl is-active firewalld NetworkManager crond
unknown
inactive
active
[root@oldboyedu ~]# systemctl is-enabled firewalld NetworkManager crond
disabled
disabled
enabled
关闭selinux
[root@oldboyedu ~]# grep =disable /etc/selinux/config
SELINUX=disabled
[root@oldboyedu ~]# setenforce 0
[root@oldboyedu ~]# getenforce
Permissive
配置yum源
查看yum源？ repo 源 意思
/etc/yum.repos.d/ 系统yum源的存放位置 xxx.repo ooo.repo
yum repolist
[root@oldboyedu ~]# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
- base: mirrors.aliyun.com
- extras: mirrors.aliyun.com
- updates: mirrors.huaweicloud.com
repo id repo name status
base/7/x86_64 CentOS-7 - Base 10,019
extras/7/x86_64 CentOS-7 - Extras 413
updates/7/x86_64 CentOS-7 - Updates 1,928
repolist: 12,360
yum groups mark convert
yum grouplist
Installed Groups:
Compatibility Libraries
Development Tools
Legacy UNIX Compatibility
Milkymist
Security Tools
System Administration Tools
CentOS 7 系统默认的源更新
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
增加epel源
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
curl 命令访问网站工具
http://mirrors.aliyun.com
安装常见工具
tree vim wget bash-completion bash-completion-extras lrzsz net-tools sysstat iotop iftop htop unzip nc nmap telnet bc psmisc
解决ssh连接速度慢
79 GSSAPIAuthentication no
vim /etc/ssh/sshd_config
远程连接的时候 关闭把ip地址转换为域名 功能
115 UseDNS no
[root@oldboyedu ~]# egrep -n '^(GSSAPIA|UseDNS)' /etc/ssh/sshd_config
79:GSSAPIAuthentication no
115:UseDNS no
[root@oldboyedu ~]# systemctl restart sshd.service
[root@oldboyedu ~]# grep oldboy /etc/sudoers
oldboy ALL=(ALL) NOPASSWD: ALL
克隆2台机器
-综合架构-backup-10.0.0.41 backup 10.0.0.41 172.16.1.41
-综合架构-nfs01-10.0.0.31 nfs01 10.0.0.31 172.16.1.31
环境变量：
PS1
PATH
LANG
TMOUT timeout
https://www.jianshu.com/p/b462820f7fe5
常用工具
history命令环境变量