Re: hostnames

[Lawrence, Wayne]

Hi Martin,

 

To answer your questions in order.

 

1) All hosts are tunning monit 5.3.2 the host which resolves correctly is running centos 6.2.

  the hosts that dont resolve correctly are running ubuntu 11.10 and Arch linux.

 

2) the hostname outputs are as follows

On the ubuntu host

talyn

on the Arch host
scorpius.bm-home.lan

3) outputs from getent hosts `hostname`
on the ubuntu host

127.0.0.1       localhost.localdomain loclhost talyn.bm-home.lan talyn

on the Arch host

127.0.0.1       localhost.localdomain localhost scorpius.bm-home.lan scorpius

I may be ,missing something blatantly obvious but if you have any suggestions to put this right i would appreciate it.

 

Regards

 

Wayne

 

On 14 February 2012 09:14, Martin Pala <address@hidden> wrote:

Hi,

monit <= 5.2.4 used just  the libc's interface gethostname(), which should match the output of the "hostname" CLI utility.

monit >= 5.2.5 gets the hostname also via gethostname(), but then also tries to resolve that name to get the fully qualified domain name using system's getaddrinfo() API (the resolver is driven by nsswitch.conf and resolv.conf).

Few questions?
1.) which monit versions are running the two hosts which report as "localhost.localdomain" and which monit versions those who report correct hostname?
2.) what is the "hostname" output on host with "localhost.localdomain"?
3.) what is the "getent hosts `hostname`" output on host with "localhost.localdomain"?

Regards,
Martin

On Feb 9, 2012, at 11:10 AM, Lawrence, Wayne wrote:

> Hi,
>
> Just a quick question if anyone can answer it. Where does monit get the hostname from?
>
> I have serveral servers which all report their correct hostanme at the cli but when i get emails from monit or view them in m/monit they show as localhost.localdomain. One reports everything coreclty the other 2 are giving the localhost/localdomain problem.
>
> I know the server names are correct as they all resolve correctly but I want consistency across my servers.
>
> Rergards
>
> Wayne

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