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Re: switching to DHCP in a clean manner ...



On Sun, Feb 24, 2008 at 10:04:38PM +0000, Glenn Becker wrote:

> 
> Hi all -
> 
> I just moved from the NY metro area to the Boston metro area, and in the 
> process changed ISPs. My service is now significantly faster and cheaper, 
> but my account now assigns IPs dynamically -- previously, I'd had a static 
> IP.
> 
> I have the /option/ with the new provider to get a static IP but I decided 
> to try the DHCP thing since the static is an extra charge ... all I have 
> done is add the line "exec dhclient" to /etc/rc.local. Now, this _works_, 
> but I don't know that it is the best solution and I suspect I may have 
> config files in there with the old IP/gate/and so forth numbers in them. 
> It has been so long since I set that networking up that I've kind of 
> forgotten the Best Way to Do It ... and the best way to clean it up and 
> switch over to something else.
> 
> Can someone point me toward a good doc to read on this, or let me know if 
> I am going about this in an absurdly inelegant way. Like I say, it works 
> but I don't know that it is as good as it could be.

My quick anxiety-reliever in these situations is always grep.
Something like grep -rn 12.34.56.789 /etc/* 
using your old IP will find orphaned mentions.  

Someone wiser will give you a real answer...

-- 
richard


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