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I have just read the Presentation Zen blog post about PowerPoint. One of the interesting suggestions was that it’s not effective to present the same information twice, so you don’t have notes covering what you say. Having a diagram that gives the same information is effective though because it gives a different way of analyzing […] BOF stands for Birds Of a Feather, it’s an informal session run at a conference usually without any formal approval by the people who run the conference. Often conferences have a white-board, wiki, or other place where conference delegates can leave notes for any reason. It is used for many purposes including arranging BOFs. To […] In Debian bug 418210 there is discussion of what constitutes a cluster. I believe that the node configuration lines in the config file /etc/ha.d/ha.cf should authoritatively define what is in the cluster and any broadcast packets from other nodes should be ignored. Currently if you have two clusters sharing the same VLAN and they both […] I just received a question about SE Linux via email. As I don’t want to post private messages containing material that’s globally useful I’ll answer through my blog: > other than strict and targeted policies……other policies like > RBAC, MCS, Type Enforcement are also there….how are these policies > implemented The two main policies are […] The prominent blogger and author Kathy Sierra has recently cancelled a tutorial at a conference after receiving death threats. Obviously this is a matter for the police to investigate – and the matter has been reported to them. It’s also an issue that is causing a lot of discussion on the net. The strange thing […] Currently many people have Google advertising on their web sites, it may even be that a majority of the serious Internet users host Google advertising. Given that Google is already writing a cheque every month to many people, it wouldn’t be difficult for them to change the amount in response to a funds transfer request. […] When I first started putting pictures on my web site I used to delete the originals (at the time I only had a 3.2G hard drive in my main machine and used CDs for backup so I didn’t feel inclined to waste too much space). The problem is that I optimised the images for viewing […] Adrian von Bidder made an interesting post in response to my post about Spanish wind power. He correctly points out that power sources that have seasonal variations and which may vary during the course of a day can not be used as the sole power source. The ideal design would be to have wind power […] The book SE Linux by Example has been reviewed on Slashdot. The issue of Perl scripts was raised for discussion. It is of course true that a domain which is permitted to run the Perl interpreter can perform arbitrary system calls – it can therefore do anything that SE Linux permits that domain to do. […] Creating a simple SE Linux policy module is not difficult. audit(1173571340.836:12855): avc: denied { execute } for pid=5678 comm=”spf-policy.pl” name=”hostname” dev=hda ino=1234 scontext=root:system_r:postfix_master_t:s0 tcontext=system_u:object_r:hostname_exec_t:s0 tclass=file For example I had a server with the above messages in the kernel message log from the spf-policy program (run from Postfix) trying to run the “hostnme” program. So I […] |
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