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Re: smail bug? FQND not in proper format



jwalther@citytel.net  wrote on 19.05.97 in <Pine.LNX.3.96.970519195346.867C-100000@citytel_prct40.citytel.net>:

> Basically, mailx conflicts with smail.
>
> dpkg: error processing xmysql (--configure):
>  dependency problems - leaving unconfigured
> Setting up smail (3.2-3) ...
> Error: system's FQDN hostname (citytel_prct40.citytel.net) doesn't match
> RFC1035 syntax; cannot configure the mail system.

No, your host name is illegal. DNS host names may not contain any  
underscores.

The only thing new about this rule is that more programs are beginning to  
enforce it, it has been there from day one.

And the reason that programs are beginning to enforce it is that it is a  
security risk. Illegal chars in host names (yes, even underscores) can be  
used to sabotage software that doesn't expect them. Such software exists.

You might want to read the RFC in question. It should be in the doc-rfc  
package. (If it's not there, file a bug.)


MfG Kai


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