Wednesday, January 21, 2009

HOWTO Revert your Git repo to a certain commit

Get the SHA1 hash of the commit that you wish to revert to.

% git log


commit 9ce5e10ac4fe43e9b580344454dd27172b6c4456
Author: Simon Cornelius P. Umacob
Date: Tue Jan 20 16:30:42 2009 +0800

show/hide icmp6box

commit f193cf92b2c925a2f3f71a713d766efd1e4d81e0
Author: Simon Cornelius P. Umacob
Date: Tue Jan 20 15:52:39 2009 +0800

Merge IPv6 changes

commit 1f9f2a95b7b42cf33e730535092e56e214fdb848
Author: Simon Cornelius P. Umacob
Date: Tue Jan 20 14:55:07 2009 +0800

Merge IPv6 changes

commit ce996bd3014b05fea5eaffd7c738c5c549fd7677
Author: Simon Cornelius P. Umacob
Date: Tue Jan 20 14:30:27 2009 +0800

add and NetUtils.js


% git reset --hard ce996bd3014b05fea5eaffd7c738c5c549fd7677

HEAD now points to ce996bd3...

To go back to the "original" HEAD, find its SHA1 hash and reset your current HEAD to that state.

% git reflog
simoncpu@pfsense:/home/pfsense/simoncpu-IPv6> git reflog
74fb85b... HEAD@{0}: pull Fast forward
9ce5e10... HEAD@{1}: commit: show/hide icmp6box
f193cf9... HEAD@{2}: commit: Merge IPv6 changes
1f9f2a9... HEAD@{3}: commit: Merge IPv6 changes
ce996bd... HEAD@{4}: commit: add and NetUtils.js
cfc4dab... HEAD@{5}: clone: from

% git reset --hard 74fb85b

Note that you need not use the full SHA1 string to refer to an object.
The first few characters is enough.

Friday, January 16, 2009

pfSense IPv6

I'm currently merging our IPv6 changes to pfSense by hand so that I can commit our changes upstream once their migration from CVS to git is complete.

"With a thousand eyes, all bugs are shallow", they say. Sharing this code to the world will most likely uncover many bugs and make our code more stable. I just hope that with a thousand eyes, I won't receive a thousand flak from users in case I break something.

I'll probably break something. :)

UPDATE: As of January 16, 2011, development has been stopped. If you wish to continue development, please contact me (simoncpu at or post a bounty. Thanks! :)

(whoah, I realized that this post was made exactly 2 years ago lol)

Friday, January 09, 2009

HOWTO let lighttpd listen to both IPv4 and IPv6 requests on *BSD

When enabling IPv6 using server.use-ipv6 = "enable", lighttpd no longer listens to IPv4 requests.

Set a sysctl knob so that it will accept both IPv4 and IPv6 requests:
root@soulfury:~# sysctl net.inet6.ip6.v6only=0