In certain circumstances, your servers user data files may corrupt which can create issues while migrating , operating the cpanel accounts. These user data files can be repaired using a valid and working httpd.conf file on the server.
Lets assume we have a corrupted user data file , in order to rebuild the user data file follow the steps as below.
1. Login to your WHM/Cpanel server with root user
2. The user data files are located at /var/cpanel. Make sure if the userdata directory is present on the server.
3. If the directory exists , move it or rename it with mv command
# mv /var/cpanel/userdata /var/cpanel/userdata_backup
4. Create a new user data directory with the command mkdir
# mkdir /var/cpanel/userdata
5. Now that we have a new userdata directory created , in order to rebuild userdata files for all the accounts hosted on your cpanel server run the script “userdata_update” with “--reset” flag which will rebuild the userdata files for all the accounts that are hosted on your cpanel server.
# /usr/local/cpanel/bin/userdata_update –reset
6. The next step will be to fix the permissions for newly generated user data files which can be done by running the command
# /usr/local/cpanel/bin/fix_userdata_perms
7. Since we have a new userdata file generated we will need to update the system’s cache which can be done by command
# /scripts/updateuserdatacache
8. Now rebuild the apache configuration in order to use the newly rebuilt userdata files with the command
/scripts/rebuildhttpdconf
9. Restart the apache service with the command
/scripts/restartsrv_httpd
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