Background Unix/Linux allows a user to have control over a program that they are running by sending what are called signals. These signals are then normally handled by the program in a way that is compliant with Unix/Linux standards. Two of the most important signals that are commonly sent to a program are called SIGTERM
Month: July 2010
Petit is Available in Debian Squeeze
Debian Squeeze is in testing and with it Petit is available to be installed through the repository. That means it can be installed easily through apt, like so. apt-get install petit I would like to thank Carl Chenet for helping me get petit into Debian Squeeze. Now I have to work on getting it in
Unix/Linux Filesystem Permissions 101
Background Standard Unix filesystem permissions are less complex than Windows file system permissions and Linux ACLs. Though, this lacks flexibility which is sometimes needed, In many cases it can be leveraged as an advantage. Often the complexity of ACLs can allow administrators to create file system permissions which are cumbersome to audit and document. The
KVM Cluster with DRBD/GFS
Background Recently, I started a project at (www.eyemg.com) to migrate from VMWare to KVM. Our standard server deployment is based on RHEL5 running on HP DL380 hardware. Given our hardware/software deployment, it made sense to align ourselves with Red Hat’s offering of KVM. We are able to achieve feature parity with VMware server while adding
Snort Alert Log: Simple Analysis and Daily Reporting with Arnold and Petit
Background This script was developed last year to give a quick and dirty analysis of the Snort alert log. In typical fashion, it’s is far from perfect, but approximately right is better than absolutely wrong. Obviously, the intersects could be combined in new and creative ways, this is just one that works for us. Also,
Continue Reading “Snort Alert Log: Simple Analysis and Daily Reporting with Arnold and Petit”
Continue Reading “Snort Alert Log: Simple Analysis and Daily Reporting with Arnold and Petit”