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On Wed, 13 Jan 2010 02:22:47 +0000, Stroller |
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<stroller@××××××××××××××××××.uk> wrote: |
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> Ok, this question comes about because I noticed that I manually have |
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> to set $mydomain in Postfix. I'm about to set up Samba, too, and |
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> thinking that I might have to manually set the domain name in that, |
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> too, I thought to investigate this. Surely Postfix should get its |
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> hostname & domainname from the system itself, right? |
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> |
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> $ hostname |
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> hex |
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> $ dnsdomainname |
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> stroller.uk.eu.org |
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> $ domainname |
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> (none) |
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> $ domainname -v |
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> getdomainname()=`(none)' |
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> (none) |
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> $ |
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> |
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> This mention of getdomainname agrees with the comments in Postfix's |
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> main.cf: |
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> |
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> # The myhostname parameter specifies the internet hostname of this |
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> # mail system. The default is to use the fully-qualified domain name |
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> # from gethostname(). $myhostname is used as a default value for many |
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> # other configuration parameters. |
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> |
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> `man domainname` tells me that `domainname` should in particular "show |
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> or set the system's NIS/YP domain name". |
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> |
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> Can anyone explain the significance of this, please? |
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> |
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> /etc/conf.d/net.example suggests that "it's rare that you would need |
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> to" set a NIS domainname, "but you can anyway", and the Gentoo Linux |
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> x86 Handbook [1] says "if you don't know what [a NIS domain] is, then |
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> you don't have one". |
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> |
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> I guess that a typical desktop system might use ssmtp and not need |
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> either postfix or a NIS domainname, however I'm still confused. I |
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> guess the best question I can ask is why Postfix might choose to use |
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> this apparently-less-common config to set its hostname? I really feel |
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> like I must be missing out. It's not a massive hardship to set |
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> $mydomain manually in Postfix on several boxes, it just seems like I |
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> ideally shouldn't have to. Is there anyone who can help clarify for me? |
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Hi |
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The only way found for me was echo the domainname on startup onto proc |
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echo domainname.ch > /proc/sys/kernel/domainname |
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Does that work for you too ? |
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|
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Oliver |
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