ubuntu22.04 LTS配置root登录ssh root登录

# Ubuntu系统信息

系统在安装的时候已经默认安装了openssh-server

$ cat /etc/os-release 
PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

$  uname -a
Linux ubuntu22.04-go 5.15.0-47-generic #51-Ubuntu SMP Thu Aug 11 07:51:15 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

# 调整sshd配置文件

# 切换到root用户下
$ sudo -i
$ echo "xxxxx" |passwd --stdin root  # 给root用户设置密码

# 编辑sshd的配置
$ vim cat /etc/ssh/sshd_config
PasswordAuthentication yes
PermitRootLogin yes

# 重启sshd服务
$ systemctl restart sshd

1
2
3
4
5
6
7
8
9
10
11

接下来使用客户端工具连接即可

# 未安装`openssh-server`服务的配置方法

# 切换到root用户下
$ sudo -i
$ echo "xxxxx" |passwd --stdin root  # 给root用户设置密码

1
2
3

# 修改配置

# 01.增加配置条目`greeter-show-manual-login= true`
$ sudo vim greeter-show-manual-login= true
greeter-show-manual-login= true
[Seat:*]
user-session=ubuntu

# 02.注释配置内容`auth required pam_succeed_if.so user != root quiet_success`
$ sudo vim /etc/pam.d/gdm-autologin
#%PAM-1.0
auth	requisite	pam_nologin.so
#auth	required	pam_succeed_if.so user != root quiet_success
auth	optional	pam_gdm.so
auth	optional	pam_gnome_keyring.so
auth 	requited 	pam_permit.so
@include common-account
# SELinux needs to be the first session rule.This ensures that any


# 03.注释配置内容`auth required pam_succeed_if.so user != root quiet_success`
$ sudo vim /etc/pam.d/gdm-password
#%PAM-1.0
auth	requisite	pam_nologin.so
#auth required pam_succeed_if.so user != root quiet_success
@include common-auth
auth	optional	pam_gnome_keyring.so
@include common-account
# SELinux needs to be the first session rule.This ensures that any
# lingerling context has been cleared.Without this it is possible


# 04.修改
$ sudo vim /root/.profile
# ~/.profile: executed by Bourne-compatible login shells.

if [ "$BASH" ]; then
    if [ -f ~/.bashrc ];then
        . ~/.bashrc
    fi
 fi

tty -s && mesg n || true
mesg n || true
...

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

# 安装SSH

# 安装openssh-server
$ sudo apt-get install openssh-server

# 修改配置文件
$ sudo vim /etc/ssh/sshd_config
PermitRootLogin yes     # 在#PermitRootLogin prohibit-password的下面,增加一句

# 重启ssh服务
$ systemctl restart sshd

1
2
3
4
5
6
7
8
9

上次更新: 2025/07/26, 23:30:02

← Ubuntu20.04 系统设置 ubuntu22.04 LTS安装docker-ce→