Re: After updating 'arping' to 2.15: can't login with SSH

[Matthias Fischer <matthias.fischer@ipfire.org>]

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On 07.12.2015 15:05, ue wrote:
> Hi Matthias,
> have build also arping-2.15 (should be the same since i have here an appropriate md5sum) but i have only copied it like /libnet /usr/lib/libnet.so usr/lib/libnet.so.1 /usr/lib/libnet.so.1.7.0 also from my building environment to the productive one (no fresh .iso Install) and have had here no problem with SSH but also arping works as expected:

Hm... ;-)

> -> arping -h
> ARPing 2.15, by Thomas Habets <thomas(a)habets.se>
> usage: arping [ -0aAbdDeFpPqrRuUv ] [ -w <us> ] [ -W <sec> ] [ -S <host/ip> ]
>                [ -T <host/ip ] [ -s <MAC> ] [ -t <MAC> ] [ -c <count> ]
>                [ -C <count> ] [ -i <interface> ] [ -m <type> ] <host/ip/MAC | -B>
> For complete usage info, use --help or check the manage.

I had exactly the same output, so I thought that everything could be 
fine. It wasn't...

> As a beneath info my arping LFS differs a little to yours in Installation Details" section:

I'll try again with your settings. Devel is running.

> ###############################################################################
> # Installation Details
> ###############################################################################
>
> $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
> 	@$(PREBUILD)
> 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
> 	cd $(DIR_APP) && ./bootstrap.sh
> 	cd $(DIR_APP) && ./configure --prefix=/usr
>
> 	cd $(DIR_APP) && make $(MAKETUNING)
> 	cd $(DIR_APP) && make install
>
> 	@rm -rf $(DIR_APP)
> 	@$(POSTBUILD)
>
>
> but i think this aren´t a explanation causing your SSH problem which i currently can not´t reproduce here.

Thanks a lot - we'll see...

Best,
Matthias

> Greetings,
>
> Erik
>
>
>
> Am 06.12.2015 um 14:49 schrieb Matthias Fischer:
>
>> Hi,
>>
>> it came to my view (https://forum.ipfire.org/viewtopic.php?f=27&t=15377&sid=a93f68dc580a6301bb3afe3a85d0c44d#p92425) that there is an update for 'arping'. New version is 2.15 (IPFire: 2.05). Having the time, I tried.
>>
>> First results:
>>
>> - After some lfs-changes building seems ok, Diffs are as follows:
>>
>> ***SNIP***
>> diff --git a/lfs/arping b/lfs/arping
>> index 13eb05e..7680fdb 100644
>> --- a/lfs/arping
>> +++ b/lfs/arping
>> @@ -1,7 +1,7 @@
>> ###############################################################################
>> #         #
>> # IPFire.org - A linux based firewall         #
>> -# Copyright (C) 2007  Michael Tremer & Christian Schmidt        #
>> +# Copyright (C) 2015  Michael Tremer & Christian Schmidt        #
>> #         #
>> # This program is free software: you can redistribute it and/or modify        #
>> # it under the terms of the GNU General Public License as published by        #
>> @@ -24,7 +24,7 @@
>>
>> include Config
>>
>> -VER        = 2.05
>> +VER        = 2.15
>>
>> THISAPP    = arping-$(VER)
>> DL_FILE    = $(THISAPP).tar.gz
>> @@ -40,7 +40,7 @@ objects = $(DL_FILE)
>>
>> $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
>>
>> -$(DL_FILE)_MD5 = 96e7c2ce8ae09046e264a314eeaac4dd
>> +$(DL_FILE)_MD5 = 676584f6eb4ccc8c70fc6b2c702df75d
>>
>> install : $(TARGET)
>>
>> @@ -70,7 +70,8 @@ $(subst %,%_MD5,$(objects)) :
>> $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
>> 	@$(PREBUILD)
>> 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
>> +	cd $(DIR_APP) && ./configure --prefix=/usr
>> 	cd $(DIR_APP) && make $(MAKETUNING)
>> -	cd $(DIR_APP) && install -m 0755 arping /usr/sbin
>> +	cd $(DIR_APP) && make install-exec
>> 	@rm -rf $(DIR_APP)
>> 	@$(POSTBUILD)
>> ***SNAP***
>>
>> Resulting binary is a bit small. Smaller than expected. Ok, nevertheless - ("...this will NOT work...!") -  copied it to '/usr/sbin' (after making a backup... ;-) ).
>>
>> Rebooting the machine showed no visible problems. At first. But after starting SSH, I couldn't no longer login with PuTTY. Exactly NOTHING happens.
>>
>> SSH-Log shows:
>>
>> ...
>> 11:18:02	sshd[2852]: 	Server listening on 0.0.0.0 port 222.
>> 11:18:02	sshd[2852]: 	Server listening on :: port 222.
>> 11:18:02	sshd[2859]: 	error: Bind to port 222 on 0.0.0.0 failed: Address already in use.
>> 11:18:02	sshd[2859]: 	error: Bind to port 222 on :: failed: Address already in use.
>> 11:18:02	sshd[2859]: 	fatal: Cannot bind any address.
>> ...
>>
>> Copied the old 'arping 2.05' back to '/usr/sbin', rebooted, PuTTY works.
>>
>> Ok, so there is something missing (in lfs!?), probably configure-options, which is beyond my small programming skills. If anyone is interested in the new 'arping'-version and capable of this: any hints are welcome. ;-)
>>
>> Best,
>> Matthias
>
>