Ubuntu 14.04 服务器搭建最简 check list

步骤

1、使用 root 用户 ssh 登录

2、创建新用户，并给其 `sudo` 权限

adduser newbie
gpasswd -a newbie sudo

3、切换到新用户，并配置 ssh key

su - newbie
mkdir .ssh
chmod 700 .ssh
vi .ssh/authorized_keys     # paste your key
chmod 600 .ssh/authorized_keys

4、修改 sshd_config

sudo vi /etc/ssh/sshd_config
Port 4917 # change ssh port(optinal)
AllowUsers newbie # restrict only newbie can login through ssh

sudo service ssh restart

5、简单配置 ufw

sudo ufw allow {port}/tcp 
sudo ufw show added
sudo ufw enable

6、设置 PS1

txtred='\[\033[0;31m\]' # Red
txtylw='\[\033[0;33m\]' # Yellow
txtrst='\[\033[0m\]'    # Text Reset

PS1="\u@${txtylw}\h${txtrst}:${txtred}\w${txtrst}$ "

7、更改 hostname

sudo vi /etc/hostname
sudo service hostname start

8、更改 ssh welcome message

- /etc/motd: The classic, static file. Does not exist anymore in Ubuntu 16.04 LTS, not even as a symbolic link to /var/run/motd. If it is created, however its contents will be printed too.
- /var/run/motd: This was used by Ubuntu’s first implementation. It is not used anymore. It is just ignored by PAM.
- /var/run/motd.dynamic: This is what is shown on login currently. It is updated by /etc/init.d/motd at every boot. It is also updated by PAM by running the scripts in /etc/update-motd.d/, if they exist.
- /etc/motd.tail: The Ubuntu package used to populate /etc/update-motd.d. One of them would cat the contents of this file so it was easy to add static content. That script does not exist in the package anymore, so the file does not have the intended effect.

主要修改以下两处文件

  • /etc/motd
  • /etc/update-motd.d/ 下面的文件

see this post

使用 zsh

安装

sudo apt-get update
sudo apt-get install zsh
curl -L https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh | sh
chsh -s /bin/zsh

设置

cd .oh-my-zsh/custom/plugins
git clone git@git.panezhang.cn:z-zsh.git

修改 .zshrc

  • 主题：blinks
  • 插件：z-zsh

备注

  • 使用 docker 时，需要在 /etc/docker/daemon.json 中加入 "iptables": false，否则 ufw 的配置会失效。

Refs