Permission or access rights can be specified between users and groups of users. This permission controls the ability of the users to view, change, navigate, and execute the contents of the file system.
- 1 Default Access Details
- 2 BASH
- 2.1 Change Password
- 2.2 Create a New User
- 2.3 Reset User Password
- 2.4 Reset Root Password
- 2.5 List of Users
Default Access Details
The IPLOG unit use the same access details (Username and Password) for the WEB and SSH (BASH) as well.
Password: ...... Clean, the default is without password!
For remote connection IPLOG-GAMA supports SSH protocol or a local connection is possible via USB console.
The root user has permission to create a new user, grant permission or change a password.
Login as root user.
login as: root
2. Password Command
Type the command passwd to change the password of the current user or passwd metel (user metel) for a different one, then write a new password after the characters New password:.
root@iplog:~# passwd Changing password for root New password:
3. Retype the New Password
Notification from Linux, that password was changed successfully.
passwd: password for root changed by root
Create a New User
If you are signed in as the root user, you can create a new user without permission limitations.
Login as root user.
login as: root
2. New User Command
The adduser command allows the addition of a new user to the system. After adduser characters write the new user name (gama-example).
root@iplog:~# adduser gama
3. New User Password
Write the password for the new user account.
Changing password for gama New password:
4. Retype the New Password
Notification from Linux, that the password was changed successfully.
passwd: password for gama changed by root
The adduser command created a user, a group, and a home directory for your user. Your new user is now ready for use! You can now log in using the password you set up.
Reset User Password
The User password is possible to change via root account. Change password as root.
Reset Root Password
Reseting the password for root account is possible only in the Recovery mode. Mount the userfs files from the common firmware image and delete the root password there.
2. Mount Userfs
Open the SSH connection via Putty, use the default IP address and login for root user.
Type the following commands:
1. root@iplog-recovery:~# ubiattach -p /dev/mtd8 2. root@iplog-recovery:~# mount -t ubifs ubi1:userfs /mnt/userfs
root@iplog-recovery:~# ubiattach -p /dev/mtd8 UBI device number 1, total 1020 LEBs (129515520 bytes, 123.5 MiB), available 152 LEBs (19300352 bytes, 18.4 MiB), LEB size 126976 bytes (124.0 KiB) root@iplog-recovery:~# mount -t ubifs ubi1:userfs /mnt/userfs root@iplog-recovery:~#
3. Delete Encrypted Password
Open the common image file /etc/shadow using text editor Vim.
root@iplog-recovery:~# vi /mnt/userfs/etc/shadow
Edit the line for root user as seen below.
4. Device Reboot
The device reboot is needed to close the recovery mode and run the common image.
List of Users
A file /etc/shadow/ contains all created permision.
root@iplog:~# cat /etc/shadow
Example of Default user list.
root@iplog:~# cat /etc/shadow root::10933:0:99999:7::: daemon:*:10933:0:99999:7::: bin:*:10933:0:99999:7::: sys:*:10933:0:99999:7::: sync:*:10933:0:99999:7::: mail:*:10933:0:99999:7::: www-data:*:10933:0:99999:7::: operator:*:10933:0:99999:7::: nobody:*:10933:0:99999:7::: metel:$1$dyS.UTOR$GE8nsEAN4OxJGD/g2uh1l.::::::: sshd:*:::::::