Squid Proxy Server and Send Mail

Squid Proxy Server and Send Mail

Squid Proxy Server  :-

Proxy server is used for Internet Sharing :-

 Server Profile

Type                       :    System V manage
Package                 :    Squid
Daemon                 :    Squid
Script                      :    Squid
Configuration        :    /etc/squid/squid.conf
Port No                   :    8080 , 3128

Steps

1. Check the rpm’s

#rpm –q squid

2. Edit the file squid.conf

#vi /etc/squid/squid.conf

Line number 54

http-port   8080

Line number 481

cache-mem  100MB

Line number 1805 (syntax : acl acl_name acl_type network or domain)

acl icon src 172.24.0.0/255.255.0.0

Line number 1865

http-access allow icon

In order to deny we write

http-access deny aclname

Like

http-access deny icon

If we want to restrict any site

Syntax : acl aclname acltype Name or domain

Example:

acl icon1 dstdomain .hotmail.com

Start the service

#service squid restart

#chkkconfig squid on

Client Side:

1. Click on Mozilla Web Browser
2. Click editàPreferences
3. Click on “Connection Setting”
4. Select “ Manual Proxy Configuration”

Http Proxy : 172.24.254.254 Port 8080

Send Mail  :- 

Sendmail is used to configure the mail server on the server in order to send and receive the mail.

Service Profile

Type                          :    System V manage
Package                    :    sendmail, sendmail-cf, procmail, mutt , m4
Daemon                    :    sendmail
Port                           :    25
Configuration File    :    /etc/mail/sendmail.mc
                                       /etc/mail/sendmail.cf
                                        /etc/mail/access
                                        /etc/aliases

Steps:

1. Edit the file sendmail.mc

Line number 105

            DAEMON-OPTION(……………………….)

Disable this line by adding

dnl#

2. Now create a new sendmail.cf file through sendmail.mc

#m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

3. In order to allow / restrict other network or client or any user to send mail we edit file /etc/mail/access

#vi /etc/mail/access

172.24                                                                                                  OK

172.24.0.4                                                                                      REJECT

root@station6.example.com              DISCARD

OK                  :           Allow

REJECT           :           restrict and message reply will come

DISCARD       :           restrict and message reply will not come

4. In order to redirect the mail of any user to another we edit

#vi /etc/aliases

Root :              jeet,Deepak,root@station6.example.com

After editing this file, we need to run the ‘newaliases command to update the file

#newaliases

5. Start the Service

#service sendmail restart

#chkconfig sendmail on

6. To check the mail

#mutt

If any problem come that /var/spool/mail/root does not exits then create a file by

#touch /var/spool/mail/root

Thanks ,