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Re: $HOST on OS X
- X-seq: zsh-users 15091
- From: "Benjamin R. Haskell" <zsh@xxxxxxxxxx>
- To: FranÃois Revol <revol@xxxxxxx>
- Subject: Re: $HOST on OS X
- Date: Sat, 5 Jun 2010 14:52:33 -0400 (EDT)
- Cc: zsh-users@xxxxxxx
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On Sat, 5 Jun 2010, FranÃois Revol wrote:
> Le 5 juin 2010 Ã 17:45, Benjamin R. Haskell a Ãcrit :
> > So, maybe there was some script you/someone ran that set
> > HOST=e3191.c.akamaiedge.net, for convenience. (For uploading things
> > to Akamai's CDN, maybe? Seems a bit of a stretch.)
> No it's only a bad habit of OSX to update hostname depending on the
> joined network, I often noticed this when using wifi or an unusual
> LAN. So when you open a Terminal at that point it shows this in the
> prompt and other stuff...
If that's the case, I might expect a hostname like
pool-68-162-167-80.pitt.east.verizon.net (something from a DHCP pool
assigned by an ISP). Not something on akamaiedge.net, which is
certainly not an ISP. Unless someone's playing weird games with routing
via Amazon-EC2. (More likely, that one in particular seems like some
upstream DNS misconfiguration, akin to the bad PTR record for an RFC
1918 address in this post.)
Regardless, OS X is far from the only O/S that'll update hostnames when
you join a network. And especially on a laptop, it often makes sense.
For instance, after associating with a university's wireless network,
your host probably has a different name assigned to it. Why would it be
bad to update it?
> IMO it's a security risk though...
What part, and how so?
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