consequences of changing system date

presario · 2009-07-27 10:45:04

for some reason i need to change the system date on production server (sms server with a database)
only the year should decrease by two (minus 2 years)
before changing the date i want to get some advice from the community
what problems could happen after that, what steps should i follow before doing that, etc
the things that i've already taken care of are CRON and AT jobs
i think there could be problems with file access/modification dates and anything that relies on them
can it be solved by just updating access/modification dates of all files accordingly?
please give advice
thanks in advance

Xyne · 2009-07-27 10:56:36

That's almost as dangerous as dividing by zero and the LHC.

Don't mind me. Someone with a serious answer will be with you shortly. In the meantime though, can you tell us why you need to set the clock back 2 years? Considering that ntpd and its variants cringe at shifting the time beyond a few seconds, I suspect that there will be a lot of minute details to keep in mind with such a shift.

presario · 2009-07-27 11:14:58

the reason is not so important to tell i think
it's needed to keep our sms software functioning for another two years
it's daemon based, so i'll stop it, change the date, and start it again

robmaloy · 2009-07-27 11:15:47

what else are you running on the server?

edit: how does it send the SMS?

Last edited by robmaloy (2009-07-27 11:16:18)

presario · 2009-07-27 11:25:36

i forgot to mention that there are actually 4 servers, sms server is one of them
i need to change the date only on sms server (gentoo)
it sends/receives sms using smpp protocol
all incoming messages are inserted to the database
the software checks a table in the database at some interval and if it finds new entries (outgoing messages) it tries to send them
i think all the rest software/daemons are common to many distros (i mean installed by default)
anyway, what commands would give useful output?

Last edited by presario (2009-07-27 11:26:14)

robmaloy · 2009-07-27 12:29:52

i'd wonder what happens if your server sends 2 year old SMS to the SMSC and receives SMS dating 2 years in the future :>

consider buying a new license

presario · 2009-07-27 13:05:38

robmaloy wrote:

i'd wonder what happens if your server sends 2 year old SMS to the SMSC and receives SMS dating 2 years in the future :>
consider buying a new license

that kind of problems wont happen since new outgoing messages are selected using different/additional criteria
moreover it's not only about this particular case
it's a real problem, i would be interested to get some (new) advices even i decide to buy new license

Rasi · 2009-07-27 15:30:41

Changing the date does not make this more legal... When your license is not valid anymore you are simply not allowed to use the software anymore. Period.

Misfit138 · 2009-07-27 15:42:45

This thread is being closed for violating the forum rules. Please consider reviewing them.
(in my sig)

Arch Linux

#1 2009-07-27 10:45:04

consequences of changing system date

#2 2009-07-27 10:56:36

Re: consequences of changing system date

#3 2009-07-27 11:14:58

Re: consequences of changing system date

#4 2009-07-27 11:15:47

Re: consequences of changing system date

#5 2009-07-27 11:25:36

Re: consequences of changing system date

#6 2009-07-27 12:29:52

Re: consequences of changing system date

#7 2009-07-27 13:05:38

Re: consequences of changing system date

#8 2009-07-27 15:30:41

Re: consequences of changing system date

#9 2009-07-27 15:42:45

Re: consequences of changing system date

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