The Perfect Server - Ubuntu 11.04 [ISPConfig 3] - Page 5

19 Install fail2ban

This is optional but recommended, because the ISPConfig monitor tries to show the fail2ban log:

apt-get install fail2ban

To make fail2ban monitor PureFTPd, SASL, and Courier, create the file /etc/fail2ban/jail.local:

vi /etc/fail2ban/jail.local

[pureftpd]

enabled  = true
port     = ftp
filter   = pureftpd
logpath  = /var/log/syslog
maxretry = 3


[sasl]

enabled  = true
port     = smtp
filter   = sasl
logpath  = /var/log/mail.log
maxretry = 5


[courierpop3]

enabled  = true
port     = pop3
filter   = courierpop3
logpath  = /var/log/mail.log
maxretry = 5


[courierpop3s]

enabled  = true
port     = pop3s
filter   = courierpop3s
logpath  = /var/log/mail.log
maxretry = 5


[courierimap]

enabled  = true
port     = imap2
filter   = courierimap
logpath  = /var/log/mail.log
maxretry = 5


[courierimaps]

enabled  = true
port     = imaps
filter   = courierimaps
logpath  = /var/log/mail.log
maxretry = 5

Then create the following five filter files:

vi /etc/fail2ban/filter.d/pureftpd.conf

[Definition]
failregex = .*pure-ftpd: \(.*@<HOST>\) \[WARNING\] Authentication failed for user.*
ignoreregex =

vi /etc/fail2ban/filter.d/courierpop3.conf

# Fail2Ban configuration file
#
# $Revision: 100 $
#

[Definition]

# Option:  failregex
# Notes.:  regex to match the password failures messages in the logfile. The
#          host must be matched by a group named "host". The tag "<HOST>" can
#          be used for standard IP/hostname matching and is only an alias for
#          (?:::f{4,6}:)?(?P<host>\S+)
# Values:  TEXT
#
failregex = pop3d: LOGIN FAILED.*ip=\[.*:<HOST>\]

# Option:  ignoreregex
# Notes.:  regex to ignore. If this regex matches, the line is ignored.
# Values:  TEXT
#
ignoreregex =

vi /etc/fail2ban/filter.d/courierpop3s.conf

# Fail2Ban configuration file
#
# $Revision: 100 $
#

[Definition]

# Option:  failregex
# Notes.:  regex to match the password failures messages in the logfile. The
#          host must be matched by a group named "host". The tag "<HOST>" can
#          be used for standard IP/hostname matching and is only an alias for
#          (?:::f{4,6}:)?(?P<host>\S+)
# Values:  TEXT
#
failregex = pop3d-ssl: LOGIN FAILED.*ip=\[.*:<HOST>\]

# Option:  ignoreregex
# Notes.:  regex to ignore. If this regex matches, the line is ignored.
# Values:  TEXT
#
ignoreregex =

vi /etc/fail2ban/filter.d/courierimap.conf

# Fail2Ban configuration file
#
# $Revision: 100 $
#

[Definition]

# Option:  failregex
# Notes.:  regex to match the password failures messages in the logfile. The
#          host must be matched by a group named "host". The tag "<HOST>" can
#          be used for standard IP/hostname matching and is only an alias for
#          (?:::f{4,6}:)?(?P<host>\S+)
# Values:  TEXT
#
failregex = imapd: LOGIN FAILED.*ip=\[.*:<HOST>\]

# Option:  ignoreregex
# Notes.:  regex to ignore. If this regex matches, the line is ignored.
# Values:  TEXT
#
ignoreregex =

vi /etc/fail2ban/filter.d/courierimaps.conf

# Fail2Ban configuration file
#
# $Revision: 100 $
#

[Definition]

# Option:  failregex
# Notes.:  regex to match the password failures messages in the logfile. The
#          host must be matched by a group named "host". The tag "<HOST>" can
#          be used for standard IP/hostname matching and is only an alias for
#          (?:::f{4,6}:)?(?P<host>\S+)
# Values:  TEXT
#
failregex = imapd-ssl: LOGIN FAILED.*ip=\[.*:<HOST>\]

# Option:  ignoreregex
# Notes.:  regex to ignore. If this regex matches, the line is ignored.
# Values:  TEXT
#
ignoreregex =

Restart fail2ban afterwards:

/etc/init.d/fail2ban restart

 

20 Install SquirrelMail

To install the SquirrelMail webmail client, run

apt-get install squirrelmail

Then create the following symlink...

ln -s /usr/share/squirrelmail/ /var/www/webmail

... and configure SquirrelMail:

squirrelmail-configure

We must tell SquirrelMail that we are using Courier-IMAP/-POP3:

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color on
S   Save data
Q   Quit

Command >>
 <-- D


SquirrelMail Configuration : Read: config.php
---------------------------------------------------------
While we have been building SquirrelMail, we have discovered some
preferences that work better with some servers that don't work so
well with others.  If you select your IMAP server, this option will
set some pre-defined settings for that server.

Please note that you will still need to go through and make sure
everything is correct.  This does not change everything.  There are
only a few settings that this will change.

Please select your IMAP server:
    bincimap    = Binc IMAP server
    courier     = Courier IMAP server
    cyrus       = Cyrus IMAP server
    dovecot     = Dovecot Secure IMAP server
    exchange    = Microsoft Exchange IMAP server
    hmailserver = hMailServer
    macosx      = Mac OS X Mailserver
    mercury32   = Mercury/32
    uw          = University of Washington's IMAP server
    gmail       = IMAP access to Google mail (Gmail) accounts

    quit        = Do not change anything
Command >>
 <-- courier


SquirrelMail Configuration : Read: config.php
---------------------------------------------------------
While we have been building SquirrelMail, we have discovered some
preferences that work better with some servers that don't work so
well with others.  If you select your IMAP server, this option will
set some pre-defined settings for that server.

Please note that you will still need to go through and make sure
everything is correct.  This does not change everything.  There are
only a few settings that this will change.

Please select your IMAP server:
    bincimap    = Binc IMAP server
    courier     = Courier IMAP server
    cyrus       = Cyrus IMAP server
    dovecot     = Dovecot Secure IMAP server
    exchange    = Microsoft Exchange IMAP server
    hmailserver = hMailServer
    macosx      = Mac OS X Mailserver
    mercury32   = Mercury/32
    uw          = University of Washington's IMAP server

    quit        = Do not change anything
Command >> courier

              imap_server_type = courier
         default_folder_prefix = INBOX.
                  trash_folder = Trash
                   sent_folder = Sent
                  draft_folder = Drafts
            show_prefix_option = false
          default_sub_of_inbox = false
show_contain_subfolders_option = false
            optional_delimiter = .
                 delete_folder = true

Press any key to continue...
 <-- ENTER


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color on
S   Save data
Q   Quit

Command >>
 <-- S


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color on
S   Save data
Q   Quit

Command >> S

Data saved in config.php
Press enter to continue...
 <-- ENTER


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color on
S   Save data
Q   Quit

Command >>
 <-- Q

Afterwards you can access SquirrelMail under http://server1.example.com/webmail or http://192.168.0.100/webmail:

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Comments

From: Marques at: 2011-05-27 18:45:21

I was getting an error when trying to start apache2 after following all instructions:

root@server1:/home/administrator# /etc/init.d/apache2 start
 * Starting web server apache2                                                                      Syntax error on line 27 of /etc/apache2/sites-enabled/000-apps.vhost:
Invalid command 'SuexecUserGroup', perhaps misspelled or defined by a module not included in the server configuration
Action 'start' failed.
The Apache error log may have more information.
 

I found that mod_suexec was not being loaded and did (note: ## !THIS! ##):

root@server1:/home/administrator# a2enmod
Your choices are: actions alias asis auth_basic auth_digest authn_alias authn_anon authn_dbd authn_dbm authn_default authn_file authnz_ldap authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cern_meta cgi cgid charset_lite dav dav_fs dav_lock dbd deflate dir disk_cache dump_io env expires ext_filter fcgid file_cache filter headers ident imagemap include info ldap log_forensic mem_cache mime mime_magic negotiation php5 proxy proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_http proxy_scgi reqtimeout rewrite ruby setenvif speling ssl status substitute suexec suphp unique_id userdir usertrack version vhost_alias
Which module(s) do you want to enable (wildcards ok)?
suexec                                     <----------------## !THIS! ##
Enabling module suexec.  
Run '/etc/init.d/apache2 restart' to activate new configuration!

Now Apache2 starts fine:

root@server1:/home/administrator# /etc/init.d/apache2 restart
 * Restarting web server apache2                                                             [ OK ]

Are there any other modules that should be being loaded by apache2 that I am missing?

root@ispconfig1:/etc/apache2/mods-enabled# apache2 -l
Compiled in modules:
  core.c
  mod_log_config.c
  mod_logio.c
  prefork.c
  http_core.c
  mod_so.c

root@server1:/etc/apache2/mods-enabled# ls | grep .load
alias.load
auth_basic.load
authn_file.load
authz_default.load
authz_groupfile.load
authz_host.load
authz_user.load
autoindex.load
cgi.load
deflate.load
dir.load
env.load
fcgid.load
mime.load
negotiation.load
php5.load
reqtimeout.load
ruby.load
setenvif.load
status.load
suexec.load
suphp.load

From: Randy Pelayo at: 2011-10-05 05:55:07

Hello sir,

Thanks for this tutorial i solve the error in apache. its running right now the ISPconfig in my network.

 Sir i have a question, how can i add this into my domain server in a web?so that i can access this were ever i am as long i have internet connection. I am a newbie in ubuntu or any linux langauges.  

thank you

From: at: 2012-11-26 22:52:23

Thanks ;-) That was very helpful now

From: Michael McShane at: 2011-07-22 04:20:32

This is so well done that I would use this as a general howto for setting up a linux server. In fact, I am currently ending my web hosting and using this setup for my own hosting server.

I did get a couple of errors in a few places but nothing I couldn't handle. It seemed to break my install of Webadmin but I reinstalled it and it was fine.

Mike

From: TomC at: 2011-08-07 19:13:06

Falko,
I don't know how you do it... thanks so much. Perfect is right!!!! I point all my Linux newbie/wannabes to your site. It's simply the best.

Tom

From: at: 2011-09-25 04:30:51

I conquer. I've tried them all from webmin/virtualmin to isp omega. Either they had poor instructions, don't keep their releases up to date, or they plain just don't work. Nice work as usual Falko. Hopefully there are modules such as an auto installer in the near future.

From: at: 2011-12-10 23:46:02

You mean that IPSConfig is the best you tried so far?

From: Coiler at: 2011-08-18 20:02:04

I've been following this how to and bought the ISPConfig manual (to ensure I did everything right).

Everything seems to be working except the ssh function.

 I've limited my users ssh option to only jailkit and I made the user, password and login is check but when its entered correctly and I login it instantly closes putty.

 Anyone else experienced this issue or knows how to fix it?

From: arthur at: 2011-10-13 16:47:33

I have installed the Perfect Server on Virtual Box. No errors, no problems. It works fine.

Great work. Many thanks for the clarity and ease of implementation of your how-to, Falko!!!

From: Jesse at: 2011-11-16 21:52:22

Hi, the tutorial is really good, I've followed step by step and my server is running pretty good but my ISP is blocking my port 25, I can't send or receive any mail from external account. I went to no-ip and bought the alternate smtp and reflector. They sent me the server and the port they're listening, I've been trying to change the port inside the postfix/main.cf without success. What should I do to solve the problem. Thanks