Category: Kev’s Blog

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Using Sendmail genericstable to map users to different domains

To run multiple domains on one machine, I haven’t found it possible to selectively use domain masquerading to set the correct domain name for email accounts that are part of each domain. However, the genericstable approach allows you to remap email addresses to alternative addresses as emails are sent:

Add these statements to your /etc/mail/sendmail.mc file to enable genericstable:

FEATURE(`genericstable',`hash -o /etc/mail/genericstable.db')dnl

GENERICS_DOMAIN_FILE(`/etc/mail/generics-domains')dnl

Create a /etc/mail/generics-domains file that contains a list of the domains that are to be processed when remapping addresses.

For example:

example1.com

example2.com

Create the /etc/mail/genericstable file. For example:

username       username@different-domain.com

Rebuild the genericstable.db file:

makemap hash /etc/mail/genericstable.db < /etc/mail/genericstable

Rebuild your sendmail config using m4 (see other post here).

Restart your sendmail server.

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Playstation 3 to come preinstalled with Linux?

The Inquirer supposedly have some information about the upcoming PS3, and that it will possibly come shipped with a relatively large hard drive. To prove a point that the PS3 will be more than just a games console, it will also be preinstalled with Linux.

One of the key features of the new Cell processor is that it will be capable of running multiple Operating Systems simultaneously on the same processor. Shipping the machine with Linux attempts to prove that the machine will be far more than just a games console.

In an interview with Sony President Ken Kutaragi, he suggests that the console could be used for editing home videos and photo retouching. There hase been a lot of coverage of the consoles gaming capabilities, but up until now no mention has been made of any of the expected ‘home entertainment center’ type functionality, that possibly will set the PS3 apart from the XBox 360, which is getting a head start with its release later this year (2005).

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Could OS/2 be open sourced?

OS/2, the operating system developed by IBM (and initially with Microsoft in the early days before Microsoft took some of the kernel code and build Windows NT on top of it), may be due for a come back, if a group of enthusiasts at OS/2 World have their way.

<a href="http://www.theinquirer.net/?article=22793
“>The online OS/2 community is petitioning to have have IBM release the source code for OS/2 as open source. Whether this will actually happen is anyone’s guess. OS/2 was initially a far superior operating system and far more stable that Windows 3.x available at the same time, but IBM never managed to get the marketing right to capture a sufficient market share, and instead were steamrollered by the marketing juggernaught of Microsoft.

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