Going from a DEC/Digital Unix enviorment to a IBM/AIX or HP/UX.

[JimOwens]

I have a customer that is looking to take his current apps, Radius Authencation, Sendmail an Apache, from his current environment, DEC/ Digital UNIX to either an IBM/AIX or HP/UX environment. Would it be better/possible to flash cut these over or just migrate all the apps?<br>
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Thanks in advanced!!!<br>

 

[robherc]

Hmmmm......all of the installations of Linux I haveencountered come with Sendmail & Apache......maybe that'd be a better way for him to go.....just migrate his personal data & not have to worry about recompiling the programs.<br>
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-Robherc

 

[JimOwens]

My customer is an ISP and I have heard lately that Linux may have problem with mission critical information. Let me ask you if you were an ISP would you use an IBM netfinite server with linux as your main web server???????

 

[AndyBo]

Where did you hear about the "may have problem with mission critical information" story? Not been over to a certain

http://www.m****soft.com

have you? ;^)<br>
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What sort of mission critical information is it supposed to lose? I'd trust my data to Linux/Unix more than any other platform.<br>
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Many, many, many ISPs are running their service on Linux on a variety of hardware. I wouldn't have any problems with recommending Linux on any manufacturers hardware.

 

[JimOwens]

Andybo,<br>
Check out what this site has to say about Linux...<br>

http://www.PlanetIT.com/docs/PIT19990415S0023

 

[AndyBo]

There's some good points made in the story, and I can understand people planning to implement V. large scale operations being nervous about using Linux after reading it.<br>
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One thing the story doesn't mention (or I missed it) is the name of who was paying for the research... &lt;/paranoia&gt; ;^)<br>
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If formal accountability, 24/7 support, etc are an issue, then I'd go for a commercial vendor every time. End of story. Management like to have backsides to kick when things go wrong.<br>
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However, it could be argued that if you post a question to sites like this one, or to Usenet, you'll get knowledgeable answers and program fixes more quickly than through a commercial vendor. Also, the answers given in this kind of forum will go through some peer review, sometimes resulting in even better/more accurate answers.<br>
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I think it's horses for courses. The systems we look after are on a variety of platforms, from 486 Novell servers to Unix based apps, some NT stuff, all the way up to mainframe apps. We've got a couple of Linux boxes in there doing stuff like DNS for approx 500 users, with e-mail maybe being transferred to Linux in the future. When it comes to the actual apps that are being used though, it's always a case of pick the app that fits the requirements, then size the hardware and get the recommended OS.<br>
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One thing to think about in your particular situation: If the ISP goes for a commercial vendor, what apps are they running? If it's going to be things like Bind, Sendmail, and Apache, then Linux has probably got the largest installed and (maybe) best supported user base. I've never had a problem compiling and running any of these apps under Linux, but trying to get them to work on non-mainstream Unix OSes has been a pain in the backside at times. (I've even had problems getting them to work on mainstream OSes, or getting the vendors to supply the latest versions of the above.)<br>
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It'll probably end up being a mix of platforms. Get a couple of K-class HP/UX servers for the multi-Terabyte databases, and leave sendmail, bind et al to Linux or similar.<br>
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Sorry if I've rambled on a bit. Guess it's that Friday afternoon effect.

 

[darkstar]

Well, the size of the mail app is an issue as well. How big a Linux box can you make? Our mail server has 9Gb of space just for mail, and handles 70,000 pieces of mail a day. The throughput is fairly good, but a smaller, slower box would not be able to keep up.<br>
Add the web server hits on top of that, and you have the recipe for outgrowing an Intel box fairly easily.<br>
I wouldn't worry about the radius stuff since that workload is pretty low, but the others would concern me.

 

[JimOwens]

Thanks Guys!!!!!!!!!!!!!!!!!!!!!!<br>
You gave me some GREAT INFO!!!!!!<br>
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