{"id":105,"date":"2012-07-04T12:05:10","date_gmt":"2012-07-04T04:05:10","guid":{"rendered":"http:\/\/matnet.my\/blog\/?p=105"},"modified":"2012-07-04T12:05:10","modified_gmt":"2012-07-04T04:05:10","slug":"iredmail-replication-server-with-1-hour-delay-or-what-ever-delay-you-want","status":"publish","type":"post","link":"https:\/\/matnet.my\/blog\/2012\/07\/iredmail-replication-server-with-1-hour-delay-or-what-ever-delay-you-want\/","title":{"rendered":"IREDMAIL replication server with 1 hour delay or what ever delay you want."},"content":{"rendered":"

This is not a HA and it’s not using any ldap replication engine and mysql replication engine.<\/p>\n

The methodology is just<\/p>\n

backup –> transfer –> restore<\/p>\n

The tools needed;<\/strong><\/p>\n

i. rsync<\/p>\n

ii. NFS daemon<\/p>\n

iii. mysqldump and restore (for mysql)<\/p>\n

iv. slapcat (for ldap)<\/p>\n

v. crond<\/p>\n

Let’s start<\/p>\n

ON THE MAIN SERVER<\/strong><\/p>\n

1. First of all sync the data in \/var\/vmail and \/var\/www to the backup server using rsync:<\/p>\n

rsync -av –delete –stats –progress \/var\/vmail\/ root@destination-host:\/var\/vmail\/\u00a0<\/em>
\n<\/strong><\/p>\n

beware of –delete option, this cmd will delete data that is in backup server and not in primary server.<\/p>\n

2. Then sync the www folder<\/p>\n

rsync -av –delete –stats –progress \/var\/www\/ root@destinan-host:\/var\/www\/\u00a0<\/em><\/strong><\/p>\n

3. Backup the mysql – all database<\/p>\n

mysqldump -u root -pPASSWD –all-databases > \/mnt\/ur-nfs-mount-folder\/all-database.sql\u00a0<\/em> <\/strong> (Please read my previous article how to setup NFS)
\n<\/em><\/strong><\/p>\n

4. Then run the backup script of LDAP provided by iredmail tools in \/root\/iRedmail\/tools\/ . Edit the files and change the path of destination backup to the \/mnt\/ur-nfs-mount-folder<\/p>\n

5. Set all cmd to the crond, for example 1 hour<\/p>\n

0\u00a0\u00a0 *\/1\u00a0\u00a0 *\u00a0\u00a0 *\u00a0\u00a0 *\u00a0 \/root\/rsync.sh<\/p>\n

 <\/p>\n

ON THE BACKUP SERVER<\/strong><\/p>\n

1. Run mysql restore<\/p>\n

mysql -pPASSWD < \/var\/nfs\/all-database.sql<\/strong><\/em><\/p>\n

2. Create shell script to restore ldap as follow<\/p>\n

#!\/bin\/bash<\/em><\/strong>
\ntouch \/tmp\/ldap-restore && exit<\/em><\/strong>
\nrm -rf \/var\/lib\/ldap\/domain.com\/__*<\/em><\/strong>
\nrm -rf \/var\/lib\/ldap\/domain.com\/*.bdb<\/em><\/strong>
\nrm -rf \/var\/lib\/ldap\/domain.com\/alock<\/em><\/strong>
\nrm -rf \/var\/lib\/ldap\/domain.com\/log.*<\/em><\/strong>
\n\/etc\/init.d\/ldap stop<\/em><\/strong>
\n\/usr\/sbin\/slapadd -f \/etc\/openldap\/slapd.conf -l \/var\/nfs\/backup-ldap.ldif<\/em><\/strong>
\nchown -R ldap.ldap \/var\/lib\/ldap\/domain.com\/<\/em><\/strong>
\n\/etc\/init.d\/ldap start<\/em><\/strong><\/p>\n

3. Run the script on crond, maybe you might set every 1hour or some minutes for giving some time for primary server to generate the backup and rsync.
\n-EoF-<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

This is not a HA and it’s not using any ldap replication engine and mysql replication engine. The methodology is … More IREDMAIL replication server with 1 hour delay or what ever delay you want.<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,3],"tags":[],"class_list":["post-105","post","type-post","status-publish","format-standard","hentry","category-bsd-nix","category-www","standard"],"_links":{"self":[{"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/posts\/105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/comments?post=105"}],"version-history":[{"count":1,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/posts\/105\/revisions"}],"predecessor-version":[{"id":106,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/posts\/105\/revisions\/106"}],"wp:attachment":[{"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/media?parent=105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/categories?post=105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matnet.my\/blog\/wp-json\/wp\/v2\/tags?post=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}