Migrate sbarjatiya.com VM

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Migrate sbarjatiya.com VM

VM creation on AWS

1. Create a new AWS account
2. Create a CentOS 6.0 VM with updates
3. Configure security group with same rules as existing VM. That is access to
   • SSH
   • HTTP, HTTPS
   • SMTP, SMTPS, POP3, POP3S, IMAP, IMAPS
   • DNS (UDP)
   • ICMP echo-request, ICMP echo-reply
   • TCP ports 100, 200, 300, 400 from anywhere
4. Obtain a elastic IP and associate with the VM
5. Add entry in /etc/hosts of current machine with appropriate name for new elastic IP
6. SSH to VM
7. Fully update the VM to latest packages
8. Create partition /documents_raw with 10G or more space
9. Reboot the VM

Package installations

1. yum -y install vim parted epel-release wget
2. Setup rpmfusion-free and non-free
3. yum -y install ecryptfs-utils
4. mount -t ecryptfs /documents_raw /documents
   • Choose reasonable passphrase and accept all other defaults (aes, keybytes=16)
5. Set desired hostname using hostname command and by editing /etc/sysconfig/network file
6. Copy saurabh@labpc ssh public key as authorized on new server
7. Copy old servers public key as authorized on new server
8. Create /etc/hosts entry on old server for pointing to new server
9. rsync /documents from old server to new server
10. setenforce 0 on new server
11. edit /etc/sysconfig/selinux and set SELINUX=disabled on new server
12. cp /etc/profile.d/history.sh from old server to new

Copy user accounts and home folders

1. rsync /etc/{passwd,shadow,group} to new server
2. rsync /home to new server
3. rsync -vtrp /root/ to new server
   • Note this will overwrite history and .ssh configuration of root user
4. vim /etc/ssh/sshd_config
   • Allow root ssh with password
5. service sshd restart

Configure email system

1. service postfix stop
2. chkconfig postfix off
3. yum -y install sendmail
4. verify in /etc/hosts first line has 127.0.0.1 <hostname> where hostname matches output of hostname command. There can be other names after hostname but first value should be hostname
5. service sendmail start
6. chkconfig sendmail on
7. Copy {/etc/mail/,/etc/aliases,/etc/hosts} from old server to new
8. newaliases
9. cd /etc/mail; make
10. service sendmail restart

Configure web server

1. yum -y install mod_ssl php-mysql php-pdo php-xml php
2. rsync -vtrp /etc/httpd/{conf,conf.d} from old server to new
3. service httpd restart
4. chkconfig httpd on

Install and configure erlang/yaws

1. yum -y install erlang gcc pam-devel
2. Download yaws sources and install it via ./configure; make; make install
   • make test fails but yaws seems to work
3. su - sbarjatiya
4. cd ~/erlang/applications/interpreter; erlc *.erl
5. cd ~/erlang/applications/wol_application; erlc *.erl
6. cd ~/erlang/erlangcentral.com; erlc *.erl
7. vim start_yaws.sh
   • Replace old hostname with new hostname
8. vim start_applications.erl
   • Replace old hostname with new hostname
9. erlc *.erl
10. ./start_yaws.sh
11. yaws --ls
12. exit from sbarjatiya user

Configure DNS

1. yum -y install bind bind-utils
2. rsync -vaH /etc/named.conf to new server
3. rsync -vaH /var/named/* to new server /var/named
4. service named start
5. chkconfig named on

Configure MySQL and migrate databases

1. yum -y install mysql-server
2. service mysqld start
3. look at /documents/public_html/notes_wiki/LocalSetting.php file for MySQL credentials
4. Create cooresponding db
5. Create correspoding user with same password and grant all to created db. Remember to 'flush privileges;'.
6. yum -y install sshpass
7. run /documents/public_html/import_notes_database.sh

Configure AWStats, copy old logs

1. yum -y install awstats perl-Geo-IP
2. copy
   • /etc/awstats
   • /var/lib/awstats
   • /var/log/httpd

   from old server to new server

3. Run following:

   wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
   gunzip GeoLiteCity.dat.gz
   mkdir /usr/local/share/GeoIP
   mv -f GeoLiteCity.dat /usr/local/share/GeoIP
   chmod -R 755 /usr/local/share/GeoIP

4. service httpd restart

Copy firewall, change DNS and check things

1. copy /etc/sysconfig/iptables from old server to new
2. Note old public IP and new public IP properly
3. Add /etc/hosts entry for old public IP
4. Change DNS as follows on godaddy.com:
   • rekallsoftware.com :: @
   • energyconservationclub.in :: @
   • erlangcentral.com :: @
   • pbarjatiya.com :: @
   • sbarjatiya.com :: @
5. Shutdown old VM (Do not release elastic IP yet)
6. Check following URLs:
   • http://www.rekallsoftware.com/
   • http://www.sbarjatiya.com/
   • http://www.sbarjatiya.com/notes_wiki/
   • http://www.energyconservationclub.in/
   • http://pbarjatiya.com/
   • http://www.erlangcentral.com/
   • http://www.erlangcentral.com/interpreter/index.yaws
7. Send email to saurabh@sbarjatiya.com, saurabh@energyconservationclub.in
8. Release elastic IP from old VM
9. Update ssh known_hosts keys on rekallcm1 for sbarjatiya.com and www.sbarjatiya.com.
10. Take one full backup.

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