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## Different Redhat version

I found Redhat have many version but I am not understand what is its difference ,

1. AS vs ES , what is its difference ? as I know , the difference of these two version is only AS have technical support while ES don't have , if so , what is the difference of the disc ? which one should I use ?

2. for ia64 , for IBM power , for intel itanium , 32bit x86 , does it mean I must find the disc to install to the right server model eg , if I use itanium cpu , I must use RH for intel itanium , if I use IBM power server , I must use RH for IBM power etc ? I tried to to use the verion 32bit x86 to install different servers , it works and without problem , does it mean 32bit x86 is work for any type of server ?

3. Beta , Extras Beta , I found these type of version , is it only used to testing ? if I used for production server , I can skip to it ?
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## Re: Different Redhat version

Shalom,

1. As supports more processors. Not many other differences. Support is a bit more expensive per system than ES. I go with CentOS which is based on AS, unless Red Hat is required. Then I go with ES unless AS is required by an application.

2. ia64=64 bit itanium processor, special release of Red Hat for this processor type. Same thing for Power. x86 is 32 bit intel x_64 is 64 bit intel, NOT Itanium.

3. Extra software, may not be as well tested. I would not use any software from either of these areas in production.

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