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

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

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Hi Michael, hi Erik,

On 11.12.2015 19:53, Michael Tremer wrote:
> Hello guys,
>
> I am sorry, but I do not follow. Do I need to do anything? Is this a
> bug?

Neither ... nor ;-)

It looks as it was just a LFS-problem on my side while updating 'arping 
2.05' => 2.15.

My first try ended with a bind error (see below).

Eriks LFS-verson was better, 'arping 2.15' was built successfully and 
I'm testing it since then - without the PuTTY failures which I had with 
the first version. Thats all.

Who is pushing? Primarily its Eriks work.

Best,
Matthias

> -Michael
>
> On Tue, 2015-12-08 at 18:54 +0100, Matthias Fischer wrote:
>> Hi Erik,
>>
>> I can't explain, but your changes made it! After using your lfs-file
>> for
>> 'arping 2.15', the first tests are all ok. SSH is working as expected
>> and I can login through PuTTY.
>>
>> Thanks again! ;-)
>>
>> Best,
>> Matthias
>>
>>
>> On 07.12.2015 18:48, Matthias Fischer wrote:
>> > 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=a93f68
>> > > > dc580a6301bb3afe3a85d0c44d#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