Restoring ISPconfig3

I have lost my disk configuration due to a RAID controller failure.
Previous system was CentOS 5.11 and ISPconfig 3.0.5.4p9 - I installed a newest one on the CentOS 6.9. The reason is that there is no longer enabled repository for CentOS v. 5.11. Or maybe it doesn't matter - than I could install Debian 9.4 instead.

Fortunatelly I have the rsync copy of these folders: /var/www | /var/vmail | /usr/local/ispconfig | /var/lib/mysql/ and /etc. Can I just I copy (except /etc) content of these folders to a new server ?
Or how to do it and install mySQL databases ?

I installed a new ISPconfig server but the very newest version - do the both ISPconfig versions should be exactly the same ? If I am not quite sure - which file inside /usr/local/ispconfig contain ISPconfig version number ?

 

I copied all above folders except /etc and folder /var/log/ispconfig/httpd was required also. I copied files /etc/passwd and /etc/group also.
Server httpd is runnig OK, Ispconfig web interface is OK, ftp is OK, clients could login but email server is not working Web mail login works (roundcube) and clients can see past emails, but sending and receiving emails is not working.
I got some errors:

Code:

Apr 18 09:05:51 dns postfix/proxymap[24259]: warning: request for unapproved table: "mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf"
Apr 18 09:05:51 dns postfix/proxymap[24259]: warning: to approve this table for read-only access, list proxy:mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf in main.cf:proxy_read_maps
Apr 18 09:05:51 dns postfix/smtpd[24258]: fatal: proxymap service is not configured for table "mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf"
Apr 18 09:05:52 dns postfix/master[5047]: warning: process /usr/libexec/postfix/smtpd pid 24258 exit status 1
Apr 18 09:05:52 dns postfix/master[5047]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling

Old server was CentOS 5.11, new server is CentOS 6.5.
I notice the difference between Perfect setup CentOS 5.10 and 6.5.
CentOS 5.10 installs dovecot and dovecot-sieve
CentOS 6.5 installs dovecot and dovecot-mysql
Should I remove dovecot-mysql and install dovecot-sieve instead ?

 

I did:
Reconfigure Permissions in master database? (yes,no) [no]: yes
Reconfigure Services? (yes,no) [yes]:
and next: service postfix restart
Result is the same:

Code:

Apr 18 10:22:52 dns postfix/postfix-script[1243]: stopping the Postfix mail system
Apr 18 10:22:52 dns postfix/master[862]: terminating on signal 15
Apr 18 10:22:52 dns postfix/postfix-script[1328]: starting the Postfix mail system
Apr 18 10:22:52 dns postfix/master[1329]: daemon started -- version 2.6.6, configuration /etc/postfix
Apr 18 10:22:53 dns postfix/proxymap[1334]: warning: request for unapproved table: "mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf"
Apr 18 10:22:53 dns postfix/proxymap[1334]: warning: to approve this table for read-only access, list proxy:mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf in main.cf:proxy_read_maps
Apr 18 10:22:53 dns postfix/smtpd[1333]: fatal: proxymap service is not configured for table "mysql:/etc/postfix/mysql-virtual_sender_login_maps.cf"

 

I reinstalled postfix and amavis (as it is depending). Current log is:

Code:

Apr 18 10:54:40 dns postfix/postfix-script[5197]: stopping the Postfix mail system
Apr 18 10:54:40 dns postfix/master[4638]: terminating on signal 15
Apr 18 10:54:40 dns postfix/postfix-script[5269]: starting the Postfix mail system
Apr 18 10:54:41 dns postfix/master[5270]: daemon started -- version 2.6.6, configuration /etc/postfix
Apr 18 10:54:55 dns dovecot: imap-login: Disconnected (no auth attempts): rip=31.0.38.219, lip=213.192.68.43, TLS handshaking: SSL_accept() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown: SSL alert number 46
Apr 18 10:54:56 dns dovecot: imap-login: Disconnected (no auth attempts): rip=31.0.38.219, lip=213.192.68.43, TLS handshaking: SSL_accept() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown: SSL alert number 46

 

I reinstalled Dovecot also without succsess.
this part of log corresponding with webmail (roundcube) located on the same machine:

Code:

dovecot: imap-login: Disconnected (no auth attempts): rip=31.0.38.219, lip=213.192.68.43, TLS handshaking: SSL_accept() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown: SSL alert number 46

While clients wants to connect from outside using their mail programs (eg. Thunderbird) the log is like this:
dovecot: imap-login: Disconnected (auth failed, 1 attempts)

 

This problem appears only while webmail wants to connect (roundcube, located on the same machine. I

 

I'ff fix SSL cert later, but now most important is this:
dovecot: imap-login: Disconnected (auth failed, 1 attempts): user=...

 

It works now - "myhostname" was missing in main.cf because of reinstalling postfix.