ubuntu16.04 TLS

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1、root密码修改

默认用户下： sudo passwd root

2、ssh远程登录

sudo apt-get install openssh-server

sudo vi /etc/ssh/sshd_config

注释 PermitRootLogin prohibit-password

添加 PermitRootLogin yes

sudo service ssh restart

OK！！！

PS：ssh client登录失败，报“algorithm negotiation failed”

文件尾部添加：

Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256,arcfour,blowfish-cbc,cast128-cbc

MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-sha1-96,hmac-md5-96

KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,curve25519-sha256@libssh.org

重启

sudo service ssh restart

3、换阿里源

sudo cp /etc/apt/sources.list sources.list.bak.1

sudo vi /etc/apt/sources.list

del all & add 内容：命令替换 sed -i 's/us.archive.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list

deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse  deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse  deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse  deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse  ##测试版源  deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse  # 源码  deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse  deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse  deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse  deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse  ##测试版源  deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse

更新源

sudo apt-get update

更新软件

sudo apt-get upgrade

5、改目录颜色，深蓝伤眼

cd ~
dircolors -p > .dircolors
vi .dircolors
找到“DIR 01;34”
修改为 “DIR 01;35”
exit
重新login

6、virtualbox 双网卡（桥接+NAT），主机单网卡

virtualbox启用两个网卡，NAT默认不指定网卡，桥接指定网卡。

ip addr

网口名称：enp0s3 （桥接正常）、 enp0s8（异常）

sudo vi /etc/network/interfaces

文件尾部添加：

# The user added network interface
auto enp0s8
iface enp0s8 inet dhcp

重启服务

sudo service network restart

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