» Door Joren op donderdag 20 januari 2011
I am a member of Whitespace, a hackerspace in Ghent. It is essentially a loose collective of people with a passion for technology. We will organize an event for our first birthday and hope you will be there. This is our cal for participation:
A newline marks the end of a line and moves the cursor to the next one. One could see it as a sign of progress. A newline gives you a whole new line to be filled. We are happy to announce that we see a newline ahead of us, namely the one that marks the beginning of our second year of existence. Last spring we opened Whitespace and the space has grown in members, projects, usage and infrastructure ever since. To celebrate this, we invite all of you to our first anniversary weekend.
The event is planned for Friday the 25th and Saturday the 26th of March 2011 at Whitespace, Ghent, Belgium. Friday evening will be a social event. Saturday will be a day of talks and workshops followed by a fun activity in the evening.
This is an open invitation to all of you to come to the event and moreover to actively participate by giving a talk or workshop. We are looking forward to all your ideas! We are looking forward to long talks, short talks, hands-on workshops and having an awesome time in our space. Feel like participating? Great! Get it touch with us! We’re interested in all topics, especially if they are a bit out-there.
We want to publish a preliminary program on the 1st of March 2011 and the final program on the 14th of March.
If you want to give a talk or workshop or you want to help us in any other way, please contact us on newline [at] 0×20 [dot] be.
Thank you!
— Whitespace
http://0×20.be/Newline
I will be presenting a talk about fun applications of audio processing.
Code, Projecten, en Hackerspace Ghent
» Door Joren op donderdag 13 januari 2011
Just a quick hint. If you ever need to find the MAC address of your Android device, and who doesn’t, check this file:
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/sys/devices/virtual/net/wlan0 |
You can read the file with the Astro File Manager.
Hackerspace Ghent
» Door Joren op maandag 10 januari 2011
With this post I would like to draw attention to the fact that remote port forwarding with OpenSSH 4.7 on Ubuntu 8.04.1 does not work as expected.
If you follow the instructions of a SSH remote port forwarding tutorial everything goes well until you want to allow everyone to access the forwarded port (not just localhost). The problem arises when binding the forwarded port to an interface. Even with GatewayPorts yes present in /etc/ssh/sshd_config the following command shows that it went wrong:
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user@local$ssh -R 2222:localhost:22 user@remote
user@remote$sudo netstat -lntp #on the remote server
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp6 0 0 ::1:2222 :::* LISTEN |
It listens only via IPv6 and only on localhost an not on every interface (as per request by defining GatewayPorts yes). The netstat command should yield this output:
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user@local$ssh -R 2222:localhost:22 user@remote
user@remote$sudo netstat -lntp #on the remote server
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:2222 0.0.0.0:* LISTEN |
I do not really know here it goes wrong but there is an easy workaround. By defining both
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GatewayPorts yes
AddressFamily inet |
in /etc/ssh/sshd_config remote port forwarding works fine but you lose IPv6 connectivity (this due to the AddressFamily setting). Another solution is to use more up to date software: the bug is not present in Ubuntu 10.04 with OpenSSH 5.3 (I don’t know if it is an Ubuntu or OpenSSH bug, or even a configuration issue.
I have been struggling with this issue for a couple of hours and, with this blog post, I hope I can prevent someone else from doing the same.
Code