blog.lobraun.de

Run sysctl -w net.ipv6.conf.all.disable_ipv6=1sysctl -w net.ipv6.conf.default ...

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

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

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

Today, firefox didn’t start up

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 ...

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/

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 ...

After I csuped to the latest CURRENT-Source and had a quick look at /usr/src/UPDATING I found this entry: 20090619:NGROUPS_MAX and NGROUPS have been increased from 16 to 1023and 1024 respectively. As long as no more than 16 groups perprocess are used, no changes should be visible. When morethan 16 groups are used, old binaries may fail ...

I used to add users to a new unix group by firing up my favorite editor and edit /etc/group. That’s because I always forget which tool to use and how to use it. This blog posting shall remind me of usermod: usermod -a -G [,,…]