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| 2009-11-27

Reverting a commit in Subversion

I had to revert parts of an SVN commit (and didn’t want to perform a long lastin ...

Lothar Braun
0 min read
| 2009-11-19

Creating a DOS usb stick on Linux

As hardware usually is shipped broken, it is often necessary to update the crappy software on these broken devices with a firmware update. Some vendors have Linux/Unix tools for this task, but most only have fireware update “tools” which need to be run from DOS. This is a big problem for me, as I do neither use DOS or Windows on my mach ...

Lothar Braun
4 min read
| 2009-11-02

Disable IPv6 using sysctl on Linux

Run sysctl -w net.ipv6.conf.all.disable_ipv6=1sysctl -w net.ipv6.conf.default.disable_ipv6=1sysctl -w net.ipv6.conf.lo.disable_ipv6=1 on the command line to disable it immediatelly (you might need to put all interfaces down and up in order to loose your IPv6 addresses on the interface). The changes will not be permanent and will be ...

Lothar Braun
1 min read
| 2009-10-22

How to copy a virtual box image

Make sure the image is not used by any virtual machine, then run VBoxManage clonehd if the corresponding image is in your virtualbox directory (usually /home//.Virtualbox/HardDisks) or VBoxManage clonehd /path/to/your/image.vdi /desired/location/of/your/image.vdi

Lothar Braun
1 min read
| 2009-10-20

Reload Snort Rules

Did you know? You can load a new rule set into snort without restarting snort. Simply send the HUP signal to the running snort instance and it will parse its config file and load new rules: killall -HUP snort

Lothar Braun
0 min read
| 2009-10-08

Xen DomU - Boot in Single User Mode

Add extra = ‘single’ to the xen domU config file

Lothar Braun
0 min read
| 2009-09-18

xdm authorization key matches an existing client

Today, firefox didn’t start up

Lothar Braun
0 min read
| 2009-08-03

Postfix: Configuring Smarhost with TLS and Authentication

Configuring mutt as you mail client does force you to configure a mail server on you local system, as mutt cannot send mails by itself. When I chose to use mutt, I decided to set up postfix to drop my sent mail to my usual mailserver. This mailserver does run on port 465, uses TLS and needs authentication. Therefore, I added relayh ...

Lothar Braun
3 min read
| 2009-07-06

pkg_add via HTTP

If you want to install FreeBSD packages via HTTP (e.g. because your firewall does not allow FTP), you need to set PACKAGESITE to a repository which distributes the packages via HTTP. For example: setenv PACKAGESITE http://ftp2.de.freebsd.org/pub/FreeBSD/ports/i386/packages-7-stable/Latest/

Lothar Braun
1 min read
| 2009-07-06

Only TFTP with FreeBSDs pxeboot

The FreeBSD pxeboot binary wants to include the loader from a NFS share. If mounting the share fails, the system will halt and needs a hard reboot. In order to propagate the loader via TFTP you need to recompile the binary. Therefore, you will have to install the FreeBSD sources and edit your /etc/make.conf. Insert LOADER_TFTP_SUPPORT ...

Lothar Braun
2 min read
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