Linux manually add a regular user

Source: Internet
Author: User

To add user user1 (uid=550 gid=550) as an example:

To enter the shell with the administrator root account:

#vi/etc/group

At the end, add by format:

USER1:X:550:

#wq

#vi/etc/passwd

Add at the end:

User1:x:550:550::/home/user1:/bin/bash

#wq

#vi/etc/shadow

Add at the end:

user1:!! : 16875:0:99999:7:::

(The meaning of one of the fields:

1 )“登录名”是与/etc/passwd文件中的登录名相一致的用户账号 2 )“口令”字段存放的是加密后的用户口令字,长度为 13 个字符。如果为空,则对应用户没有口令,登录时不需要口令;如果含有不属于集合{./ 0 -9A-Za-z}中的字符,则对应的用户不能登录。 3 )“最后一次修改时间”表示的是从某个时刻起,到用户最后一次修改口令时的天数。时间起点对不同的系统可能不一样。例如在SCOLinux中,这个时间起点是 1970 1 1 日。 4 )“最小时间间隔”指的是两次修改口令之间所需的最小天数。 5 )“最大时间间隔”指的是口令保持有效的最大天数。 6 )“警告时间”字段表示的是从系统开始警告用户到用户密码正式失效之间的天数。 7 )“不活动时间”表示的是用户没有登录活动但账号仍能保持有效的最大天数。 8 )“失效时间”字段给出的是一个绝对的天数,如果使用了这个字段,那么就给出相应账号的生存期。期满后,该账号就不再是一个合法的账号,也就不能再用来登录了。)

#wq!

#cp-R/etc/skel/home/user1

#chown-R User1.user1/home/user1

#chmod-R go=/home/user1

#openssl passwd-1-salt "87548548"

Enter a password and then generate a string of characters to copy this string of characters

#vi/etc/shadow

On the line that you just joined user1:!! : 16875:0:99999:7::: In, remove!!

Then paste this string of characters. Save Shadow is created.








Linux manually add a regular user

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