ServerBuddies Support Blog

From time to time the RubyGems repository will be unavailable. If at any point during installation process the RubyGems repository becomes unavailable, you will need to re-run

Since Ruby on Rails uses its own web server, it has to run this web server on an alternate port. This causes an issue if you are running a firewall on your system. You will need to ensure that ports 12001 and up are open. We recommend making the max number of the open ports 12001 plus whatever the number of Ruby applications you expect to be running will be.

Removing a mail server from the Spamhaus PBL

How to check if your IP is listed.

Spamhaus assists Internet service providers with preventing unsolicited email (spam) from passing through their mail servers. One of the tools Spamhaus employs is a “Policy Block List” (PBL) that lists addresses that get assigned to customers of dial-up, broadband, and hosting service providers. Those addresses are then blocked by default and have to be manually removed from the list when someone has a legitimate need to use one of those addresses to run a mail server (as many Slicehost customers do). It is therefore likely that a new slice, or one that hasn’t been used as a mail server before, will be on the Spamhaus PBL.

Being on the PBL doesn’t mean your address is blocked for spamming. The list is only there as a precaution against potential abuse. Spamhaus applies this policy to any IP addresses that could change hands from one customer to another. Their goal is to prevent computers that should not be sending email directly from being able to do so if they are compromised in some way.

List of packages that should not be upgraded on an Ensim Pro for Linux server.

Ensim RPMs you should leave alone: Some of these application RPMs have an tag in the build number (”ensimized RPMs”). This denotes that Parallels Pro Control Panel for Linux has made modifications to the RPM for various reasons such as fixing bugs, adding additional security, or improving performance for hosting domains. The detailed list of these RPMs is shown below.

Reference :http://www.parallels.com/products/pro/

Enabling User/Group Quota for virtual private server that already exists.

If the virtual private server already exists, run the following command to set the parameter:

Where, 101 is the VPS ID number.

Restart the virtual private server.

How do I change the IP address of my server in Ensim Pro for Linux.

If you are changing the IP address of your server you need to modify the following files with the new IP address, replacing any instance of the old IP address:

Now reboot the server and then run the following command