安全强化你的 Linux 服务器的七个步骤-白红宇

安全强化你的 Linux 服务器的七个步骤

阅读量：196 次

发布时间：2019-02-28

本文共 1528 字，大约阅读时间需要 5 分钟。

??????Linux???????

?????????????????????????????????????????Linux??????????

1. ????????????

???????????????????????????????????????????????????????????

? Ubuntu ? Debian ??
```
sudo apt update && sudo apt upgrade -y
```

? Fedora?CentOS ? RHEL ??
```
sudo dnf upgrade -y
```

2. ??????

??????????????root??????????????????????sudo???

??????
```
sudo adduser
```

??usermod????????sudo???
```
sudo usermod -a -G sudo
```

3. ??SSH??

??SSH?????????????ssh-copy-id?????????????????

???????????
```
ssh-copy-id @ip_address
```

????????????????????

4. ????SSH??

????????????????SSH?????????

??SSH?????
??/etc/ssh/sshd_config?????????
```
PasswordAuthentication no
```

??root?????
```
PermitRootLogin no
```

??IP?????
??AddressFamily?????SSH?????IPv4???
```
AddressFamily inet
```

??SSH???

? Ubuntu ??

sudo service sshd restart

? Fedora ? CentOS ??

sudo systemctl restart sshd

5. ?????

????????????????????????????Ubuntu??ufw????????????????

??UFW?
```
sudo apt install ufw -y
```

????????

sudo ufw allow sshsudo ufw allow httpsudo ufw allow https

??????
```
sudo ufw enable
```

????????
```
sudo ufw status
```

6. ??Fail2ban

Fail2ban??????????????????????????IP???

??Fail2ban?
```
sudo apt install fail2ban -y
```

???????

sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local

??Fail2ban???
```
sudo service fail2ban restart
```

?????
```
sudo fail2ban-client status ssh
```

7. ????????

??????????????????????????ss??????????????

??????????
```
sudo ss -atpu
```

?????????
? Debian/Ubuntu ??
```
sudo apt purge
```
? Red Hat/CentOS ??
```
sudo yum remove
```

??????????????Linux?????????????????????????????????????????????????????????????????????????????????????????????

转载地址：http://peti.baihongyu.com/

你可能感兴趣的文章

Objective-C实现cocktailShakerSort鸡尾酒排序算法（附完整源码）

查看>>

Objective-C实现CoinChange硬币兑换问题算法（附完整源码）

查看>>

Objective-C实现collatz sequence考拉兹序列算法(附完整源码)

查看>>

Objective-C实现Collatz 序列算法（附完整源码）

查看>>

Objective-C实现comb sort梳状排序算法(附完整源码)

查看>>

Objective-C实现combinationSum组合和算法（附完整源码）

查看>>

Objective-C实现combinations排列组合算法(附完整源码)

查看>>

Objective-C实现combine With Repetitions结合重复算法（附完整源码）

查看>>

Objective-C实现combine Without Repetitions不重复地结合算法（附完整源码）

查看>>

Objective-C实现conjugate gradient共轭梯度算法(附完整源码)

查看>>

Objective-C实现connected components连通分量算法(附完整源码)

查看>>

Objective-C实现Connected Components连通分量算法（附完整源码）

查看>>

Objective-C实现Convex hull凸包问题算法（附完整源码）

查看>>

Objective-C实现convolution neural network卷积神经网络算法(附完整源码)

查看>>

Objective-C实现convolve卷积算法(附完整源码)

查看>>

Objective-C实现coulombs law库仑定律算法(附完整源码)

查看>>

Objective-C实现counting sort计数排序算法(附完整源码)

查看>>

Objective-C实现countSetBits设置位的数量算法（附完整源码）

查看>>

Objective-C实现currency converter货币换算算法(附完整源码)

查看>>

Objective-C实现cycle sort循环排序算法(附完整源码)

查看>>