Tag: Most Popular

Defense in Depth and Sudo

My blog post about logging in as root and whether sudo provides any benefit [1] got some interest on Redit. In the Reddit comments on my post [2] there are a lot of strange things. One interesting comment was to suggest that logging in as non-root provided “defense in depth”. The NSA is credited with […]


Logging Shell Commands

In response to my previous post about logging in directly as root [1] it was suggested that using sudo is the only way to log the commands that are entered as root. One reason for doing this is if you don’t trust the people who are granted root access and you want to log all […]


Mailing List Meta-Discussions

It seems that most mailing lists occasionally have meta-discussions about what is on-topic, the few that don’t are the ones that have very strong moderation – authoritarian moderators who jump on the first infraction and clearly specify the rules. I don’t recall the list of acceptable topics for any mailing list including “also discussions about […]


Is the PC Dying?

I just read an interesting article about the dispute between Microsoft and Apple about types of PC [1]. Steve Jobs predicted a switch from desktop PCs to portable devices, while Steve Ballmer of Microsoft claimed that the iPad is just a new PC. Defining a PC I think that the defining characteristic of the IBM […]


Bugs in Google Chrome

I’m currently running google-chrome-beta version 5.0.375.55-r47796 on Debian/Unstable. It’s the fastest web browser I’ve used in recent times – it’s the first time that I’ve run a browser that feels faster than my recollection of running IBM WebExplorer for OS/2 on a 486-66 system! It has a good feature set, and it’s the only browser […]


Can SE Linux Implement Traditional Unix Users and Groups?

I was asked by email whether SE Linux could implement traditional Unix users and groups. The Strictly Literal Answer to that Question The core of the SE Linux access control is the domain-type model where every process has a domain and every object that a process can access (including other processes) has a type. Domains […]


Logging in as Root

Martin Meredith wrote a blog post about logging in as root and the people who so strongly advocate against it [1]. The question is whether you should ssh directly to the root account on a remote server or whether you should ssh to a non-root account and use sudo or su to gain administrative privileges. […]


Brother MFC-9120CN Color LASER Printer

I have just bought a Brother MFC-9120CN Multi-Function Color LED LASER Printer for a relative. It was a replacement for the Lexmark printer which turned out not to support Linux properly [1]. This printer cost about $545. I bought it from OfficeWorks [2] under their price-matching deal. If you find a better price anywhere else […]


A School IP Project

The music industry seems fairly aggressive in taking legal action against children when they break the licence terms of copyright material. I think it would be good to teach children about how the IP industry really works. It seems to me that you could have a school project that involves an entire year level (maybe […]

Politics School

Google Chrome and SE Linux

[107108.433300] chrome[12262]: segfault at bbadbeef ip 0000000000fbea18 sp 00007fffcf348100 error 6 in chrome[400000+27ad000] When I first tried running the Google Chrome web browser [1] on SE Linux it recursively displayed the error message in the above picture, it first displayed the error and then displayed another error while trying to display a web page to […]