Life with Linux

4.1 Create Router   Step 1: # vim /etc/sysctl.conf  net.ipv4.ip_forward = 1 Step 2: run this command  # sysctl -p     4.2 Squid Configuration   #apt-get install squid Minimum Configuration: # vim /etc/squid/squid.conf edit        #http_port 8080            [default port 3128 ] # http_port 8080 transparent       [transparent help to force using proxy without putting proxy IP on browser] #cache_mem 8 MB #cache_dir ufs    /var/spool/squid 100 16 256     [or squid3]   acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 add        acl our_network src 192.168.200.0/24   Squid Squid3 Log : /var/log/squid/access.log Cache location : /var/spool/squid/   Log : /var/log/squid3/access.log Cache location : /var/spool/squid3/     In the part “# Recommended minimum configuration:”   http_access allow localhost add       http_access allow our_network http_acces

At the Email Client Software (Outlook) change the authentication in your account settings from "Clear Text Authentication" to other option. Step:1 # vim /etc/dovecot/conf.d/10-auth.conf # allow plain text auth         disable_plaintext_auth = no # allowed authentication mechanism, at least these 2 options         auth_mechanisms = plain login Save & Exit Step:2 Restart dovecot   # /etc/init.d/dovecot                restart

Dovecot Configuration with postfix MTA Here I am going to show the basic installation and configuration of a Pop server with Postfix MTA. Step: 1 #apt-get install dovecot-common dovecot-imapd dovecot-pop3d –y Step: 3 # vim /etc/dovecot/conf.d/10-mail.conf Ø   Unhash and modify:    Mailbox MailDir mail_location = mbox:~/mail:INBOX=/var/mail/%u   [If you are using mailbox]   Ø   mail_location = maildir:~/Maildir [ If you are using Maildir ] Ø   vim /etc/postfix/main.cf home_mailbox = Maildir/     #   Mail_privileged_group = mail Step: 4 #/etc/init.d/dovecot restart

Postfix Configuration: Here we are going to configure a SMTP mail server with Postfix.  Step: 1 # apt-get install postfix Ø   Select Internet side:     Ø   Put the domain name as like below: Step:2 # Ø   vim /etc/hosts   127.0.0.1          localhost 122.144.9.74    mail.tanjila.com            mail                      [Format: Server IPFQDN hostname] [Here 122.144.9.74 is mail server IP]   Ø   # vim /etc/hostname mail                                                                                [here mail is server’s hostname]   Ø   # vim /etc/resolve.conf   nameserver 202.84.32.22 nameserver 202.84.33.13   Step: 3 # cd /etc Ø   # mv /etc/aliases /etc/postfix   Step: 4 # cd /etc/postfix Ø   # touch transport Ø   # vim transport   tanjila.com                local:                                                        [Format: domain             local:] mail.tanjil