Total Desaster recovery

Discussion in 'Tips/Tricks/Mods' started by Morons, Jan 23, 2007.

  1. Morons

    Morons Member

    Total Disaster recovery

    I had an recent experience that my RAID 10 set-up on an DELL server [4years old] crashed 2/4 hard drives simultainious due to heat.
    I recovered fully except for the smtp auth login. I did however upgraded from Mandriva 2006->2007 and this sample is on the non-working server.
    220 hera.domain.tld ESMTP Postfix (2.3.3) (Mandriva Linux)
    ehlo localhost
    250-SIZE 10240000
    250 DSN
    auth login
    334 VXNlcm5hbWU6
    334 UGFzc3dvcmQ6
    535 5.7.0 Error: authentication failed: authentication failure
    On the other serve it works ! My question is the diffeence is in the lines 250-AUTH GSSAPI CRAM-MD5 LOGIN DIGEST-MD5 PLAIN vs 250-AUTH LOGIN PLAIN
    telnet localhost 25
    Connected to beta.domain.tld (
    Escape character is '^]'.
    220 beta.domain.tld ESMTP Postfix (2.3.3) (Mandriva Linux)
    ehlo localhost
    250-SIZE 10240000
    250 DSN
    auth login
    334 VXNlcm5hbWU6
    334 UGFzc3dvcmQ6
    235 2.0.0 Authentication successful
    The beta server is an plain newly setup box same as above but it works! Can Someone tell me were to look and what files to be edited / compared?
    Last edited: Jan 24, 2007
  2. Morons

    Morons Member

    The backup script I used

    I make backup and overwrite the file-set once an week - thus having a file-set for monday thuesday etc
    this is my script, I stole some mysql bits from people on this server - Thankx.

    HOWTO setup the ssh to login using keys and not pawsswords. WARNING: It does mean that once an hacker get into one of your servers he can get to another witout passwords - therefore we will limit the auto auth to regular users and not root!
    On server1.domain.tld
    cd /root/.ssh
    ssh-keygen -q -b 1024 -t rsa -f id_rsa  # create the files id_rsa and the .pub is the public key and can be distributed the other myst stay put and be kept safe!
    on the server2
    adduser backup
    passwd backup
    su backup
    ssh server1.domain.tld  # this will create the .ssh folder with correct permissions and save the known_hosts information
    exit # back to root
    cd /home/backup/.ssh  
    vi authorized_keys	# now copy the content of server1 authorized_keys in here.  One line per server.
    			# -rw-------    1 backup root          234 Nov 13 11:22 authorized_keys
    The backup script for ISPConfig on server1 I called it /root/make-backup and chmod +x /root/make-backup wil make it work!
    find /root/ispconfig > /root/root-backup-files
    find /home/admispconfig > /root/home-backup-files
    find /etc/passwd > /root/etc-backup-files
    find /etc/shadow >> /root/etc-backup-files
    find /etc/group >> /root/etc-backup-files
    find /etc/gshadow >> /root/etc-backup-files
    find /etc/proftpd.conf >> /root/etc-backup-files
    find /etc/proftpd_ispconfig.conf >> /root/etc-backup-files
    find /etc/ssh >> /root/etc-backup-files
    find /etc/postfix >> /root/etc-backup-files
    find /var/www/ > /root/var-backup-files
    DATE=`date +%Y-%A`
    # For your own sanity replace "hera-" with your host name. Or even replace it with $HOSTNAME"-"
    # echo $date
    # echo $BACKUPNAME
    for i in $(echo 'SHOW DATABASES;' | mysql -u$USER -p$PASSWORD -h$HOST|grep -v '^Database$'); do
                    mysqldump \
                    -u$USER -p$PASSWORD -h$HOST \
                    -Q -c -C --add-drop-table --add-locks --quick --lock-tables \
                    $i > /home/backup/$BACKUPNAME-$i.sql;
    tar cvzf /home/backup/$BACKUPNAME"-root-backup.tar.gz" --files-from=/root/root-backup-files --no-recursion
    tar cvzf /home/backup/$BACKUPNAME"-home-backup.tar.gz" --files-from=/root/home-backup-files --no-recursion
    tar cvzf /home/backup/$BACKUPNAME"-etc-backup.tar.gz" --files-from=/root/etc-backup-files --no-recursion
    tar cvzf /home/backup/$BACKUPNAME"-var-backup.tar.gz" --files-from=/root/var-backup-files --no-recursion
    /usr/bin/scp /home/backup/$BACKUPNAME* $DESTINATION:/home/backup/
    rm /root/root-backup-files
    rm /root/home-backup-files
    rm /root/etc-backup-files
    rm /root/var-backup-files
    I would like comments if I left out something here, In my original backup I left out the group files and had to manually create some parts, ISPConfig actually fixed it for me after a while!

    Add this to your crontab to run early morning so that the bandwidth is available to traqnsfer large files - WARNING this BACKUP is LARGE !
    crontab -e
    45 04 * * * /root/make-backup
    This part was added by means of post editing! :cool:
    Basically extract the needed user data files - carefull not to overwrite system config files IF you upgraded packages. [You are on your own here]
    I restored the mysql database and the db_ispconfig, the latter might have a different name if you made that choice during the install.
    mysql -u root -p -e "source /home/backup/hera-2007-Friday-mysql.sql" mysql
    mysql -u root -p -e "source /home/backup/hera-2007-Friday-db_ispconfig.sql" db_ispconfig
    NOTE: my script above makes these files and care should be taken around the "hera" read the comments in the script of how to customise this server name.
    Last edited: Jan 26, 2007
  3. fbnewtz

    fbnewtz New Member


    Thanks for this script. Hopefully it works out. I am only going to run it and have it transfer the contents off the server once a week. Don't want to kill bandwidth.


  4. jorizzzz

    jorizzzz New Member

    My backups are run using Dirvish. This is a very handy backup tool that uses rsync and ssh to transport the data. You can choose what to backup and how long a backup should be kept at the other server.

    The great thing about dirvish, is that it is incremental. You don't need to copy all of the information every time, just the changed things!
  5. m1_davidson

    m1_davidson New Member

    Restore prod to virtual env

    I ran the restore and it all looks good - but when I try to log in to webmail, it falls apart. Has any one successfully done a restore? Actually, all I'm trying to do is to move my production environment onto a virtual server.
  6. mlz

    mlz New Member

    While what you have looks great, I've decided to use system imager and backup my servers (yes plural, only one web right now, but multiple stream servers). SI makes a fairly complete backup, and I provided the live disk to my colo operator. For remote it makes it easy, since if there were a need to reload, the system will contact my office and pull the server back up.

    The nice part about it, I do a backup every 4 hours once the initial image is made, and we're considering doing it every hour. Not to mention, that if I should hose part of a system, I can use FTP and restore the old files in a heartbeat.

    Big thanks to Falko for the idea, although I didn't use his howto (I really didn't need to, it's really well documented already) as I stubbornly refuse to use a deb system. :D
  7. falko

    falko Super Moderator ISPConfig Developer

    Does the webmail exist after the restore? What exactly is the problem?
  8. m1_davidson

    m1_davidson New Member

    Thanks Falko, Yes webmail exits after my restore in my virtual environment. When I try to authenticate - to get emails, I get the following error messages:

    Warning: fsockopen() [function.fsockopen]: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/admispconfig/ispconfig/web/webmail/inc/class.uebimiau_mail.php on line 66

    Warning: fsockopen() [function.fsockopen]: unable to connect to localhost:110 (Unknown error) in /home/admispconfig/ispconfig/web/webmail/inc/class.uebimiau_mail.php on line 66

    Warning: Cannot modify header information - headers already sent by (output started at /home/admispconfig/ispconfig/web/webmail/inc/class.uebimiau_mail.php:66) in /home/admispconfig/ispconfig/web/webmail/msglist.php on line 64
  9. m1_davidson

    m1_davidson New Member

    I get a lot of security warnings when installing systemimager. Also, systemimager has a number of quirks so I'd rather not go there. If I'm able to get my production environment into a virtual environment, I have a script that would shutdown the virtual server, copy all related files & start server up again. For me, this is as good as it gets.
  10. falko

    falko Super Moderator ISPConfig Developer

    What's the output of
    netstat -tap
    , and what's in /etc/hosts?
  11. m1_davidson

    m1_davidson New Member

    Hi Falko,

    These are the outputs:

    netstat -tap

    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    tcp 0 0 *:1001 *:* LISTEN 1667/rpc.statd
    tcp 0 0 *:mysql *:* LISTEN 2011/mysqld
    tcp 0 0 *:sunrpc *:* LISTEN 1630/portmap
    tcp 0 0 *:hosts2-ns *:* LISTEN 2457/ispconfig_http
    tcp 0 0 *:ftp *:* LISTEN 2643/proftpd: (acce
    tcp 0 0 *:* LISTEN 2616/named
    tcp 0 0 localhost.UU.NET:domain *:* LISTEN 2616/named
    tcp 0 0 localhost.UU.NET:ipp *:* LISTEN 1872/cupsd
    tcp 0 0 localhost.UU.NET:rndc *:* LISTEN 2616/named
    tcp 0 0 *:smtp *:* LISTEN 2572/master
    tcp 0 0 localhost.UU.NET:rndc localhost.UU.NET:4732 TIME_WAIT -
    tcp 0 0 *:imaps *:* LISTEN 2045/dovecot
    tcp 0 0 *: pop3s *:* LISTEN 2045/dovecot
    tcp 0 0 *: pop3 *:* LISTEN 2045/dovecot
    tcp 0 0 *:imap *:* LISTEN 2045/dovecot
    tcp 0 0 *:http *:* LISTEN 2488/httpd
    tcp 0 0 *:ssh *:* LISTEN 1890/sshd
    tcp 0 0 localhost6.localdomain6:ipp *:* LISTEN 1872/cupsd
    tcp 0 0 localhost6.localdomain:rndc *:* LISTEN 2616/named
    tcp 0 0 *:https *:* LISTEN 2488/httpd

    [[email protected] ~]# more /etc/hosts
    # Do not remove the following line, or various programs
    # that require network functionality will fail. res-rig05
    ::1 localhost6.localdomain6 localhost6
    Last edited: Aug 21, 2007
  12. falko

    falko Super Moderator ISPConfig Developer

    Please add
    Code: localhost.localdomain localhost
    at the beginning of /etc/hosts.
  13. m1_davidson

    m1_davidson New Member


    You - my friend - are the very best. Mile Grazie, Danke, Ose, Nagode, Thanks, Gracias :D :D :D :D

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