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Today's Topics:
1. can dhcpd keep working when encountering a syntax error (Pat Dery)
2. Re: can dhcpd keep working when encountering a syntax error
(Philippe Maechler)
3. Re: can dhcpd keep working when encountering a syntax error
(Bruce Hudson)
4. Re: Different hardware options based on subnet (Ricardo Stella)
----------------------------------------------------------------------
Message: 1
Date: Wed, 2 Sep 2020 10:24:48 -0500 (CDT)
From: Pat Dery <patrick.for...@derytelecom.ca>
To: dhcp-users@lists.isc.org
Subject: can dhcpd keep working when encountering a syntax error
Message-ID: <1599060288249-0.p...@n4.nabble.com>
Content-Type: text/plain; charset=us-ascii
Hi
is it possible to configure dhcpd to keep working when the dhcpd.conf
contains a syntax error
for example if someone enters the mac address : aa:bb:cc:dd:ee:gg by mistake
at reload the whole service stops and can't restart until someone corrects
the error
we would like it if it would continue serving ip and reporting the error in
the log file
maybe a major warning in the log instead of stopping , something like that
thanks
--
Sent from: http://isc-dhcp-users.2343191.n4.nabble.com/
------------------------------
Message: 2
Date: Wed, 2 Sep 2020 19:02:41 +0200
From: Philippe Maechler <plcmaech...@gmail.com>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: can dhcpd keep working when encountering a syntax error
Message-ID:
<caphukgabbkxo1ru6pnbuswrjcdmg777auupkvfnfyhn9kkx...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
we use the -t option (syntax check) to check if the conf file looks ok and
if so, then we restart the service. if the syntax is not ok, we report the
error by mail
the downside to this is, that the daemon reports the copyright notice and
an unexpirienced worker tought, that there is a problem because the service
was so often restarted. we did adjust the logging and now everything works
fine
hth
philippe
Pat Dery <patrick.for...@derytelecom.ca> schrieb am Mi., 2. Sept. 2020,
17:25:
> Hi
>
> is it possible to configure dhcpd to keep working when the dhcpd.conf
> contains a syntax error
>
> for example if someone enters the mac address : aa:bb:cc:dd:ee:gg by
> mistake
>
> at reload the whole service stops and can't restart until someone corrects
> the error
>
> we would like it if it would continue serving ip and reporting the error in
> the log file
>
> maybe a major warning in the log instead of stopping , something like that
>
> thanks
>
>
>
> --
> Sent from: http://isc-dhcp-users.2343191.n4.nabble.com/
> _______________________________________________
> ISC funds the development of this software with paid support
> subscriptions. Contact us at https://www.isc.org/contact/ for more
> information.
>
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
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Message: 3
Date: Wed, 2 Sep 2020 17:15:24 -0300
From: Bruce Hudson <bruce.hud...@dal.ca>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: can dhcpd keep working when encountering a syntax error
Message-ID: <20200902201524.ga31...@kil-bah-1.its.dal.ca>
Content-Type: text/plain; charset=us-ascii
On Wed, Sep 02, 2020 at 10:24:48AM -0500, Pat Dery wrote:
> is it possible to configure dhcpd to keep working when the dhcpd.conf
> contains a syntax error
The usual way to do this would be to create a script for restarting
the DHCP server. Then, before restarting the server, use the "-t" option
to test the configuration file. If the test fails, exit and leave the
old version running.
--
Bruce A. Hudson | bruce.hud...@dal.ca
ITS, Networks and Systems |
Dalhousie University |
Halifax, Nova Scotia, Canada | (902) 494-3405
------------------------------
Message: 4
Date: Wed, 2 Sep 2020 17:18:48 -0400
From: Ricardo Stella <ste...@rider.edu>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Different hardware options based on subnet
Message-ID:
<caehoxgu-wkvs3qearzzzdo9zv9wgjybyr8mgv_yakzc8rvg...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Is the problem that the definition in the global section of the config
trumps whatever is defined inside a subnet?
On Thu, Aug 20, 2020 at 4:23 PM Ricardo Stella <ste...@rider.edu> wrote:
>
> Yes. In our case, one particular subnet needs a different config. All
> others the current one.
>
> TIA
>
> On Thu, Aug 20, 2020 at 4:17 PM Bill Shirley <
> b...@c3po.polymerindustries.biz> wrote:
>
>> How do you decide which phones you want on:?
>> option nortel-specific-info =
>> "Nortel-i2004-A,10.2.0.10:4100,1,15;10.2.0.10:4100,1,15.";
>>
>> Are they on a different subnet?
>>
>> Bill
>>
>> On 8/20/2020 12:30 PM, Ricardo Stella wrote:
>>
>>
>> Not a newby but definitely beginner in terms of experience here.
>>
>> In our dhcpd.conf file we have a class set up to identify IP phones and
>> we assign the server they need to connect to:
>>
>> class "i2004-clients" {
>> match if substring (option vendor-class-identifier, 0, 14) =
>> "Nortel-i2004-A";
>> option nortel-specific-info =
>> "Nortel-i2004-A,10.1.0.10:4100,1,15;10.1.0.10:4100,1,15.";
>> option vendor-class-identifier "Nortel-i2004-A";
>> }
>>
>> In a subnet, I have the following, which works perfectly fine.
>>
>> subnet 10.10.0.0 netmask 255.255.0.0 {
>> authoritative;
>> option routers 10.10.0.1;
>> one-lease-per-client true;
>> pool {
>> allow members of "i2004-clients";
>> range 10.10.250.50 10.10.250.249;
>> max-lease-time 43200;
>> default-lease-time 43200;
>> }
>>
>> There's other pools as well, and we have several other vlans like the
>> above and all IP phones get the default configuration.
>>
>> But I need to assign some phones to a different controller - that is I
>> need to assign those that land in this specific vlan with the following:
>> option nortel-specific-info =
>> "Nortel-i2004-A,10.2.0.10:4100,1,15;10.2.0.10:4100,1,15.";
>>
>> I tried creating a different class, but because hardware is the same,
>> they fall under the first defined one. I tried adding the above inside the
>> pool section but they still get the globally defined one. Am I missing
>> something? Or would I need to assign the class or the above lines to every
>> vlan and take it out of the global config?
>>
>> Thanks in advance - Ricardo.
>>
>>
>> --
>> ?(((=((===???(((================================================
>>
>> _______________________________________________
>> ISC funds the development of this software with paid support subscriptions.
>> Contact us at https://www.isc.org/contact/ for more information.
>>
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>>
>> _______________________________________________
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>> subscriptions. Contact us at https://www.isc.org/contact/ for more
>> information.
>>
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>
>
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>
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