[Nut-upsuser] Can't get NUT slave to connect to master

[Jonah Naylor]

Hi thanks Roger. Well I'm just using Ubuntu Server 16.04 LTS

I only ran that command as a few guides say that's how to establish if a
daemon is compiled with tcp wrappers:

https://www.cyberciti.biz/faq/tcp-wrappers-hosts-allow-deny-tutorial/

I haven't really used TCP wrappers before so I'm not even sure if my
hosts.allow entries are correct:

upsd : ipaddressofclientgoeshere
ups : monuser at 127.0.0.1/32 monuser at masterstaticIP monuser at slavestaticIP

If yourself or anyone could please advise if this should work or if I need
something different in my hosts.allow file

Thank you very much once again.

On 25 November 2016 at 12:00, Roger Price <roger at rogerprice.org> wrote:

> On Fri, 25 Nov 2016, Jonah Naylor wrote:
>
> I don't think nut is built with TCP wrappers support, although the package
>> is listed as depending on libwrap...
>>
>
> Why would you have such a dependency if nut didn't use TCP Wrappers?
>
> I ran this command: ldd /sbin/upsd | grep libwrap.so and it has returned
>> no output.
>>
>
> If I run that command I get
>
> maria:~ # ldd /usr/sbin/upsd
>         linux-vdso.so.1 (0x00007ffff8fa8000)
>         libssl.so.1.0.0 => /lib64/libssl.so.1.0.0 (0x00007f05a4ea6000)
>         libcrypto.so.1.0.0 => /lib64/libcrypto.so.1.0.0
> (0x00007f05a4ab9000)
>         libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f05a489b000)
>         libc.so.6 => /lib64/libc.so.6 (0x00007f05a44ed000)
>         libdl.so.2 => /lib64/libdl.so.2 (0x00007f05a42e9000)
>         libz.so.1 => /lib64/libz.so.1 (0x00007f05a40d3000)
>         /lib64/ld-linux-x86-64.so.2 (0x00007f05a510e000)
> maria:~ #
>
> No mention of libwrap, yet I have TCP wrappers compiled in.
>
> Does this mean I have to compile from source or is there a way to add the
>> tcp wrapper support?
>>
>
> If your binary does not include TCP Wrappers, then you don't need to add
> it, and you don't need /etc/hosts.allow.  If your binary does include it,
> you need /etc/hosts.allow.  You don't have to have TCP Wrappers, and you
> don't have to recompile.
>
> Does your distribution have a mailing list which could answer the
> configuration question?
>
>
> Roger
>
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