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osx-system-administration

III Syncing a failover website : Scheduling the sync

So now we have our backup script, we have our secure SSH tunnel between the two servers and we have successfully synced our two databases and our files. Now we just have to schedule this task so that we do not have to manually run this each time we need to synchronize our systems. On Mac OSX Servers you have two options you can use Crontab and run a Cronjob, or you can use Launchd. If your running a Linux server then your pretty limited to just a Cronjob. We...

osx-system-administration

II Syncing a failover website : The Sync script

In this article we are picking up where we left off, we now have the ability to connect from our primary server to our secondary server without the need to enter a password with the help of a secret key. If you are lost at this point please refer to the last article Syncing a failover website : Creating an SSH key. At this point all we need to do is setup the bash script. We will create the script to log all of its activity so that we know...

osx-system-administration

I Syncing a failover website : Creating an SSH key

Recently at our organization we were charged with the task of creating an auto failover solution for our websites. Basically the idea here is that we have our web server sitting in a data center but if for some reason the server were to ever go down then the website would fail over to a second server where a duplicate of the website is waiting to be accessed in the event that the primary ever had an issue. This is doable but it requires that you have all your ducks...

data-recovery

Missing a file? Scrub that hard drive

Today one of the most dreaded things happened to me, the phrase that makes every IT professional shudder. I can not find my file. Ok, after running through all of the basic questions and making sure that they saved it and that it was not accidentally deleted I decided to search their hard drive. After many un-sucessfull attempts at using the search functionality (Spotlight), I decided to do some research on other methods for searching for files on the OSX platform. I came across the “locate” command for the Terminal....

mail-server

10.6.2 Mail Server draws a blank, subject?

So we upgraded from 10.5.8 Mail server to 10.6.2 and everything went very smoothly. Mailstores were migrated and the transition from Cyrus to Dovecot was great. However once all the email was moved over and all the settings were double, and triple checked. People started complaining that every once in a while their email was not getting through the server, it was getting bounced back to the sender. At first I thought that it was an internal issue with the users on our network, then I got a complaint from...

dns-settings wiki-server

10.6.2 Migrate Wiki Server & DNS

While migrating our servers services from 10.5 to our 10.6.2 production server one of the easiest migrations that I had found was to migrate the 10.5 Wiki. Simply copying files and making sure that the permissions remain in tact are really all you need. However in 10.6.2 there is a detachment from the way you authenticate. You create access for each blog based on the settings in the web interface rather than in Workgroup Manager. This threw me off a bit the first time due to the fact that I...

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