Archive for the ‘OpenBSD’ Category

Messylaneous for 03/24/2010

Posted on March 25th, 2010 by "justin sherrill" from "DragonFly BSD Digest"

In an effort to catch up…

The New pkg_add For 4.7 (espie@)

Posted on March 24th, 2010 by "openbsd journal" from "OpenBSD Journal"

When you see a CVS commit message like this:
List:           openbsd-cvs
Subject:        CVS: cvs.openbsd.org: www
From:           Marc Espie (espie () cvs ! openbsd ! org)
Date:           2010-03-08 20:43:18
Message-ID:     201003082043.o28KhIWM019271 () cvs ! openbsd ! org
Module name:    www
Modified files: 47.html
Log message:
pkg_* changed by >8000 lines. This qualifies as "major" changes in my book.

You really ought

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Tunnelling out of corporate networks (Part 5)

Posted on March 24th, 2010 by "openbsd journal" from "OpenBSD Journal"

Tunnelling out of corporate networks - the end of our quest

In the previous articles, you have read about employees and malware tunnelling out of corporate networks. I explained how this is done and why it is so easy to do. You were shown some concepts that may help you to detect and defend against such threats and I've eluded to a solution that would do away with this headache altogether. I hope that you have enjoyed this series of articles and thanks to all who have commented.

Read on to find out our solution in the fight against malware and Rich Internet Applications:

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Linux/UNIX: Move File Starting With A Dash

Posted on February 20th, 2010 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

In Unix or Linux operating systems, how do I move file(s) starting with a dash (e.g., /home/you/--filename.txt or /home/you/-filename.txt)?

sed Delete / Remove ^M Carriage Return [ Line Feed ]

Posted on November 18th, 2009 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

How can I remove the ^M or ^M (carriage Return / line feed ) from text file using sed under UNIX or Linux operating systems?

ssh brute force is still popular?

Posted on October 9th, 2009 by "kevin foo (chfl4gs_)" from "bsd.m3th.org » FreeBSD"

This is really old old old old stuff. But it still seems popular these days. Lots of script kiddies are out there I guess. My auth.log was harassed, flooded with ssh brute-force attacks.

Oct  1 10:13:50 sapphire sshd[43770]: Did not receive identification string from 202.150.213.94
Oct  1 12:40:35 sapphire sshd[45755]: Did not receive identification string from 212.122.224.24
Oct  1 20:15:14 

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UNIX Get An Alert When Disk Is Full

Posted on August 13th, 2009 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

I want to get an alert when my disk is full under UNIX and Mac OS X? How do I set a a specified threshold and run the script via cron?

The Slashdot Effect

Posted on July 27th, 2009 by "Murray Stokely" from "Murray's FreeBSD Notes"

After 8 months, 66 videos uploaded, and 141,676 views, the BSD Conferences YouTube Channel was slashdotted for the first time last week. Specifically, Theo's OpenBSD Release Engineering talk was linked from this slashdot post. Views of the video spiked to nearly 8,000 a day after the Slashdot post, which dwarfs the previous highs of around 1,500 videos a day

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The Slashdot Effect

Posted on July 27th, 2009 by "Murray Stokely" from "Murray's FreeBSD Notes"

After 8 months, 66 videos uploaded, and 141,676 views, the BSD Conferences YouTube Channel was slashdotted for the first time last week. Specifically, Theo's OpenBSD Release Engineering talk was linked from this slashdot post. Views of the video spiked to nearly 8,000 a day after the Slashdot post, which dwarfs the previous highs of around 1,500 videos a day

(Read more...)

FreeBSD / OpeBSD Running in KVM Does Not Accept FTP Traffic

Posted on July 5th, 2009 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

I've setup FreeBSD and OpenBSD under KVM. Everything works great except ftp protocol. I've no firewall installed inside FreeBSD and OpenBSD. How do I configure Linux host KVM firewall to allow ftp traffic?

Videos from DCBSDCon Posted

Posted on April 19th, 2009 by "Murray Stokely" from "Murray's FreeBSD Notes"

Thanks to Jason Dixon and Will Backman, the first 8 videos from the first DCBSDCon are now available in the BSDConferences YouTube channel. The audio quality for these is better than many of the previous conference videos because Jason was able to sync the audio with a direct recording from the podium taken by Will. These videos were also

(Read more...)

Videos from DCBSDCon Posted

Posted on April 19th, 2009 by "Murray Stokely" from "Murray's FreeBSD Notes"

Thanks to Jason Dixon and Will Backman, the first 8 videos from the first DCBSDCon are now available in the BSDConferences YouTube channel. The audio quality for these is better than many of the previous conference videos because Jason was able to sync the audio with a direct recording from the podium taken by Will. These videos were also

(Read more...)

BSD PF Firewall: Displays Active Packetfilter States And Rules

Posted on September 9th, 2008 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

Q. How do I view active connections with PF firewall under FreeBSD / OpenBSD UNIX operating system?

FreeBSD Find Out Network Card / Port Speed

Posted on August 12th, 2008 by "Vivek Gite" from "Frequently Asked Questions About Linux / UNIX » FreeBSD"

Q. Under Linux I can use Ethtool and mii-tool, but they are not available under FreeBSD. How do I tell the port speed of the nic under FreeBSD operating system?

FreeBSD : Inexpensive and simple swap encryption

Posted on July 30th, 2008 by "daemon" from "bsd.m3th.org » OpenBSD"

It has been a while that I did not put up any post. Here a short note on swap space encryption with FreeBSD geom geli(8). This feature was there for quite sometimes.

Enabling swapspace encryption with geli

Only 2 files are required to be edited, /etc/fstab and /boot/loader.conf. Change your swap partition in /etc/fstab with suffix “.eli” (i.e. ad1s1b.eli)

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Custom OpenBSD 4.2 bootable CD

Posted on November 6th, 2007 by "daemon" from "bsd.m3th.org » OpenBSD"


With the release of OpenBSD 4.2, you will find that cdrom42.fs was not provided in OpenBSD official ftp sites. However, it is relatively easy to custom build your own OpenBSD 4.2 bootable installer CD. I will show you the steps in making your own puffer fish El Torito. :-D

CREATE CD STRUCTURE
Create the OpenBSD bootable CD structure with this command,

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