最小环境安装常用工具+配置

1.安装epel-release源

yum install epel-release -y

2.常用工具

有些软件安装不上需要执行第一步
yum -y install htop vim wget curl net-tools lsof zip unzip ifconfig iftop lrzsz bind-utils  git jq iptables iptables-services supervisor fail2ban telnet telnet-server ntp bash-completion nc sysstat iproute

注： 
    bind-utils      nslookup
    iostat          sysstat
    
    apk add busybox-extras   telnet

3.关闭 selinux

vim /etc/selinux/config
    #SELINUX=enforcing
    SELINUX=disabled

保存，退出

4.防火墙

systemctl stop firewalld
systemctl disable firewalld
systemctl enable iptables

5.配置bash_profile|.bashrc文件

# MAC 里面的配置(适当减少)
export PS1='\[\033[01;36m\][\u@\h\[\033[01;32m\] \W\[\033[01;36m\]]\[\033[01;32m\]\$\[\033[00m\] '
export CLICOLOR=1
export LSCOLORS=ExGxFxdaCxDaDahbadache

export BASH_SILENCE_DEPRECATION_WARNING=1

# HomeBrew
export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles
export PATH="/usr/local/bin:$PATH"
export PATH="/usr/local/sbin:$PATH"
# HomeBrew END

[[ -r "/usr/local/etc/profile.d/bash_completion.sh" ]] && . "/usr/local/etc/profile.d/bash_completion.sh"

complete -W "$(echo $(grep '^host ' ~/.ssh/config  | sort -u | sed 's/^ssh //'))" ssh
complete -W "$(echo $(grep '^host ' ~/.ssh/config  | sort -u | sed 's/^scp //'))" scp

alias l='gls -l'
alias ll='gls --color=auto -lh --time-style=long-iso'
alias la='gls --color=auto -lFah --time-style=long-iso'
alias ss='netstat'
alias cdmkitdb='cd /Users/de-lovely/DataStorage/MKgits/abdocs/alter-table'
alias cdmkit='cd /Users/de-lovely/DataStorage/MKgits'
alias cdsgit='cd /Users/de-lovely/DataStorage/SelfGits'
alias cdst='cd /Users/de-lovely/DataStorage/Study_Save'

alias sshjumpserver='ssh jumpserver'
alias iftop='sudo iftop'
alias sftp='with-readline sftp'

export PATH="/usr/local/opt/openssh/bin:$PATH"

#退出终端，忽略: EOF; 或者 连续按 ctrl+d 3次
set -o ignoreeof
#export IGNOREEOF=2

# Setting PATH for Python 3.6
# The original version is saved in .bash_profile.pysave
#PATH="/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}"
#export PATH

#####################################################################################
##虚拟环境 python 无法安装python3.6.5 版本
#export PATH="$HOME/.pyenv/bin:$PATH"
#export PATH="/usr/local/bin:$PATH"
#
##python 虚拟环境
#eval "$(pyenv init -)"
#eval "$(pyenv virtualenv-init -)"
#export LDFLAGS="-L/usr/local/opt/zlib/lib -L/usr/local/opt/bzip2/lib"
#export CPPFLAGS="-I/usr/local/opt/zlib/include -I/usr/local/opt/bzip2/include"
#
#if which pyenv-virtualenv-init > /dev/null;
#  then eval "$(pyenv virtualenv-init -)";
#fi
#####################################################################################
#export LANG="zh_CN.UTF-8"
#export LC_ALL="zh_CN.UTF-8"
export LANG=en_US.UTF-8

# 安装coreutils 时的提示
PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"



# linux 配置
# .bashrc

export PS1='\[\033[01;36m\][\u@\h\[\033[01;32m\] \W\[\033[01;36m\]]\[\033[01;32m\]\$\[\033[00m\] '
export CLICOLOR=1
export LSCOLORS=ExGxFxdaCxDaDahbadache

# User specific aliases and functions

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'
alias ll='ls --color=auto -lh --time-style=long-iso'
alias la='ls --color=auto -la --time-style=long-iso'

# Source global definitions
if [ -f /etc/bashrc ]; then
	. /etc/bashrc
fi
[[ -r "/usr/local/etc/profile.d/bash_completion.sh" ]] && . "/usr/local/etc/profile.d/bash_completion.sh"

6. 换yum源

# 1. 备份:
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

# 2. 换阿里云源
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

#3. 换 清华大学 源
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.tuna.tsinghua.edu.cn/repo/Centos-7.repo


# 更新缓存：
yum clean all
yum makecache