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Author Archives: swift
Mitigating risks, part 1
We are running Foobar 2.0 on Tomcat 4. We know that Tomcat 4 isn’t supported, but hey – our (internal) customer is happy that the Foobar application works and would like to keep it that way. Upgrading to Tomcat 5 … Continue reading
Posted in Architecture, Security
1 Comment
Now using refpolicy 2.20110726
A few days ago, I committed the SELinux policy modules that are based on the 2.20110726 set released upstream. For those that are using Gentoo Hardened with SELinux, you’ll find them if you use the ~arch set for the sec-policy … Continue reading
Posted in Hardened, SELinux
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Use parted for large partitions
A few bugs that were sitting in Gentoo’s bugzilla for the documentation were related to large partitions (2 TB and higher). Previously, this wasn’t as much as an issue since the number of users that have 2+ TB partitions are … Continue reading
Posted in Gentoo
2 Comments
Easy documentation updates thanks to the many contributions
As mentioned previously, I took a stab at the Gentoo Guide to OpenLDAP Authentication, updating its configuration settings as well as give an introduction to its replication mechanism. Although I am no OpenLDAP guru at all, I set up a … Continue reading
Posted in Gentoo, Hardened, SELinux
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Ready, set, commit!
Yesterday, I have entered the realms of Gentoo Development again. But as it was getting late then, I had to wait before the first commits happened. So this evening, things were done. The first couple of documentation bugs (mostly related … Continue reading
Posted in Hardened
2 Comments
checksec kernel security
I have blogged about checksec.sh earlier before. Jono, one of the #gentoo-hardened IRC-members, kindly pointed me to its –kernel option. So I feel obliged to give its options a stab as well. So, here goes the next batch of OPE-style … Continue reading
emerge-webrsync and gpg verification
Gentoo has been working on its security from very early on. One of the (many) features it supports is to allow users to validate the state of the portage tree. Ebuild signing (where developers sign the Manifest file with their … Continue reading
Posted in Gentoo
2 Comments
Preliminary SELinux MCS support in Gentoo Hardened
Users tracking the hardened-dev overlay for SELinux packages will notice yet another update on the selinux-base-policy package. This time however, the change is a little more than just a policy update. With this new revision, preliminary support for Multi-Category Security … Continue reading
Posted in Hardened, SELinux
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High level explanation on some binary executable security
One very important functionality offered by Gentoo Hardened is a specific toolchain (compiler, libraries and more) that contains patches to make the built binaries a bit more protected from certain vulnerabilities. Explaining all those in detail is too much for … Continue reading
Posted in Hardened, Security
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Some people on #selinux are … dolphins
A very useful resource for anyone working on or with SELinux policies is the #selinux chat channel on irc.freenode.net. People like Dominick Grift and Dan Walsh you would first think are IRC bots (being online all the time, answering questions), … Continue reading
Posted in SELinux
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