SSH

I am very keen user of ssh, and what can frustrate me, is that I have to type passwords again and again. So after some digging around I found a solution.

Add the following to you .bash_profile
if [ ! -f $HOME/.ssh-agent.sh ]; then
ssh-agent -s > $HOME/.ssh-agent.sh
chmod o+x $HOME/.ssh-agent.sh
. $HOME/.ssh-agent.sh
# I don't have the ssh-add myself as I don't always need to have a password
# (don't ask me why)
# ssh-add
else
. $HOME/.ssh-agent.sh
fi

trap "$HOME/.bash_logout" 0

And this to your .bash_logout
if [ "`ps aux | grep $UID | grep @pts | grep -v grep | wc -l | xargs printf "%d"`" -le 1 -a -f $HOME/.ssh-agent.sh ] ; then
echo "This appears to be your last login on this machine, removing agent"
ssh-add -D 2>&1 > /dev/null
ssh-agent -k 2>&1 > /dev/null
rm $HOME/.ssh-agent.sh
fi

I know that it could be done with 'who' but as I have usernames which are longer than 8 characters this was what I could come up with.

Happy hacking.....

Comments

Post a Comment

Popular posts from this blog

Kviknet and IPv6

Image
 I decided to switch ISP, mainly due to Hiper (Danish) was using a VLAN for their connection which made pfSense and my APU3 board require a reboot everytime I changed anything. Kviknet has a good reputation (wonder why) in Denmark, they are not cheap and they have the same opening hours as everyone else - meaning until 16:30 and closed during weekends. I sometimes wonder how companies who need 24/7 internet get on with that ... well it's Denmark. Kviknet has an interesting way to do IPv6, your router get and SLAAC assigned IPv6 address on the public side (wan) and you get a ::/48 network from Kviknet to use on your lan.  To some degree it does make sense, you can then configure your lan with static addresses as you see fit, and for dynamic assignment you use RA stateless dhcp *) ... which works for everything.  (I need to get my piHole configured with an static IPv6 so that I can use that ...). pfSense is a pain, I do like it, but they are light years behind their main competitor
Read more

Apple IOS cannot download song

It looks like there is a possibility that a song will not download, in iTunes (application) it will show as "Download error. Tap to retry". From that point onwards, one can tap, and continue to tap, and nothing will solve the issue. The way to remove that song from the download queue, is to tap, and hold on the cover art, and swipe right, that will change the download icon to 'delete' and one can remove the song from the queue.
Read more

Apple AirPort Express and Digital Jitter..

I'm doing something which I can't really afford, but doing it anyway ... I'm upgrading my Stereo ... I like music, and  believe it should be played at the highest affordable quality. So after getting a new Stereo Amp (Creek Evolution 50A), I got a new Phono Amp. and then started looking for a DAC ... and after reading I do not know how many posts I decided to get an S.M.S.L M8 (from  Amazon  fro €249.99), not too expensive and according to what I can read very good. So I got it hooked it up to my amp, connected my Notebook (Macbook Air 11" / 2011) using USB ... sounded nice, then my Macbook Pro Retina with digital (fiber) in some way better than USB, slightly more air and openness. Then decided to use my old Apple Airport Express ( MB321LL/A  - 802.11n version 1) using it's digital output (I don't like the build in DAC - it's a bit too dark for me), and this is where I started having doubts about my buy. There was drop out, all the time. Right I changed, to
Read more