Linux Server

1.After successfully installed LINUX  update the OS and restart the server.

2.Open Terminal and type the below command,

       

      [user@server ~]$ yum search php53 | cut -d' ' -f1 | grep php

                php53.x86_64

                php53-bcmath.x86_64

                php53-cli.x86_64

                php53-common.x86_64

                php53-dba.x86_64

                php53-devel.x86_64

                php53-gd.x86_64

                php53-imap.x86_64

                php53-intl.x86_64

                php53-ldap.x86_64

                php53-mbstring.x86_64

                php53-mysql.x86_64

                php53-odbc.x86_64

                php53-pdo.x86_64

                php53-pgsql.x86_64

                php53-process.x86_64

                php53-pspell.x86_64

                php53-snmp.x86_64

                php53-soap.x86_64

                php53-xml.x86_64

                php53-xmlrpc.x86_64

 3. Stop the HTTP Service in server,

      [user@server ~]$ sudo service httpd stop

        Stopping httpd:                                  [  OK  ]

      [user@server ~]$ 

 4. Finally, installed the available packages: 

     

      [user@server ~]$ sudo yum install php53 php53-cli php53-common 

      php53-devel php53-gd php53-mbstring php53-mysql php53-pdo 

      php53-pgsql php53-xml php53-xmlrpc

5. After Complete the installation start HTTP service and check the version,

      [user@server ~]$ sudo service httpd start

        Starting httpd:                                  [  OK  ]

      [user@server ~]$  php -v

??????????????????????????????????????????????????????????????????????????????????????????

Setting up email server on CentOS 6.2 within 5 minutes

This email server supports SMTP(TCP port 25) and IMAPS(secure IMAP,TCP port 993). Now, you can specify this as an outgoing and incoming email server on email client such as Thunderbird on your PC.

1. Install packages

Three packages are required for this. Install them if you haven't done yet.
$yum install sendmail
$yum install sendmail-cf
$yum install dovecot

The role of sendmail is to receive emails destined to you and keep them in your mailbox on email server. Then, dovecot actually delivers those emails to your PC when you open Thunderbird or Microsoft Outlook. For outgoing email, Thunderbird first contacts sendmail, then sendmail relays the email to final destination for you.

2. Configure sendmail

You just need to change 2 lines in configuration file /etc/mail/sendmail.mc

Comment out this to allow receiving email from anywhere.
dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl


Add this line
FEATURE(`relay_hosts_only')dnl

Add your PC's full hostname in this file. Create one if this file doesn't exist.

/etc/mail/relay-domains

After changing configuration file, run this command to activate it.

$/etc/mail/make
$service sendmail start

3. Configure dovecot

You just need to edit two files.

In /etc/dovecot/dovtcot.conf, just edit these two lines
protocols = imap
listen = *, ::

In /etc/dovtcot/dovecot.d/10-mail.conf, edit these 3 lines

mail_location = mbox:~/mail:INBOX=/var/mail/%u

mail_privileged_group = mail

mbox_write_locks = dotlock fcntl

Start dovecot service
$service dovecot start

4. (Optional) Reconfigure iptables only if you are already using iptables

Add these 2 lines into /etc/sysconfig/iptables to allow email to go through firewalls.

-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 993 -j ACCEPT

then, restart iptables by
$service iptables restart

DONE

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