lize240810

# 安装mysql
```
sudo apt install mysql-server
```
# ubuntu18.04 首次登录mysql未设置密码或忘记密码解决方法
1.首先输入以下指令：
```shell
sudo cat /etc/mysql/debian.cnf
```
2.输入显示的帐号与密码

nerdalert

Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

andelf

// MIT license (c) andelf 2013


import (
	"net/smtp"
	"errors"
)

type loginAuth struct {
  username, password string