Finding servers and FTPs in AS/400

55 pts.
Tags:
AS/400
FTP
We are migrating the AS/400 servers from one IP to another and all the applications it FTPs or anything from within AS/400 is going to change. So, what all things I need to keep in mind and what should I change in the source codes so that the migration can be done without issue?


Software/Hardware used:
as400
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  • Splat
    I'd recommend scanning all of the source code on your system for relevant IP addresses, system names, and any instance of the characters FTP.  That should cover most occurrences. 

    Are you doing secure FTP (SSL) or sFTP with any other locations?  If so you may have to reload certificates and/or regenerate public/private keys.
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  • ToddN2000
    You may also want to scan for RMTSYS. Also if the systems are networked you may want to look for DDM files. and any remote printing from another system to the one being upgraded.
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  • TheRealRaven
    We are migrating the AS/400 servers from one IP to another...

    First, you shouldn't need to look at any source. Addresses shouldn't be referenced in source or scripts. Use DNS host names instead of addresses, and the problem won't exist. Simply by updating hosts entries, all referenced host names will switch to the updated addresses. (Perhaps ideally, these entries will be in your DNS rather than server hosts tables.)

    Of course, there are always developers who hard-code addresses (and libraries) when they should be externalized. So source scans should be done just so those references can be found and improved.

    But second, be aware that host names/addresses can also be in scripts read by FTP. Any named scripts will also need to be checked. And variables might be populated from database tables. data areas or elsewhere.
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