cPanel upgrade CentOS 5 to CentOS 6

I know I'm going with some delay but I want to upgrade to CentoOS 6.
I have read some guides but mostly are addressed to migrate to a new server. In my case the server it's the same one.

I have enough space in an external FTP server to store the customer accounts. My plain is to make a new clean install of CentOS 6 in the same server, then downloading all the backup accounts to some folder, and from here restore all the accounts.

I have 5 questions:

1 - The new server should be able to host one additional PHP v5.3 for some old websites. What's the best way to install an additional php 5.3 version in CentOS 6? Is there some tutorial?

2 - I have Apache/2.2. Should I rectify all the .htaccess in all the websites?

3- Now the server has MySQL v 5.1.73. Should I make some tuning in the new server with old passwords or something?

4- Can I expect a successful import of customers accounts or there are some unavoidable problem to solve manually? Which are?

5 - Is there some CPanel tool to export and import all the customers accounts, packages, etc.. at one time? It can work importing form the same server as in my case?

 

just one question: Are you sure the transfer tool can use the cpanel backup accounts from the same disk?

I don't know very much about CloudLinux but I suppose it would force to some equal distribution of the server resources among users. However, I have some users who need more resources conssumption than others. I don't know really how it works but if I'm right then I don't understand where is the benefit in cutting the resources for those who need it instead others.
What's the main reason to change to CloudLinux?.

(I add: I suppose that still there is no problem in CPanel to compile and install php 5.3 with DSO and keep it for those websites I wish. Just by adding the include in Apache and the handler to SuPHP. It would keep php5.3 independent from EAsyApache4 but working)


About upgrade to CentOS 7, I was looking that, although I'm not sure if jumping 2 versions it would be more problematic. Do you think it will work in the same way when importing the accounts?



lot of thanks for the valuable help!

 

I suppose when you says "the only way" you mean there is not integrated support in CPanel to php5.3. This is something that I understand. However, I suppose that there is not any Cpanel code to impede the execution of php 5.3. It would be really a disaster

There are customers with complex code for php5.3. They don't want to pay more neither to renew their websites. For these customers I have php 5.3 with some extra security. In the recent years I had no serious security problem with all them.
(Although I had some problems with updated Wordpress working with php5.6 because no special attention to them).

good to know. Although at this moment I prefer the server can distribute the peaks of work among different users and time periods.

thanks, that's useful to know. That command return:
ERROR 1054 (42S22) at line 1: Unknown column 'plugin' in 'field list'

Can it means no problems expected with mysql passwords?

this will not be a problem in my case if I can install php5.3 for several websites. The rest already is for php5.6 and I believe it should work.

my question was not really about FTP but about restoring the accounts from some folder in the same disk. I think the cpanel script backup_restore_manager can do this

From cpanel docs: (Backup Restoration - Documentation - cPanel Documentation):

Code:

/usr/local/cpanel/bin/backup_restore_manager add user=temptest restore_point=2016-02-26 mail_config=1 mysql=1 subdomains=1

It works in the same way?
/usr/local/cpanel/bin/backup_restore_manager add user=temptest



(I say this because probably I cannot use the FTP directly for the restore process)

well, after some time with CentOS 6 I will migrate to CentOS 7. Although now I prefer CentOS 6 because there is more info.


Please, if you can write me something more specific about importing the accounts from the same disk, I would be grateful to know.


thanks for the support



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