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Since the earliest days there has been a command named audit2allow that takes audit messages of operations that SE Linux denied and produces policy that will permit those operations. A lesser known option for this program is the “-R” option to use the interfaces from the Reference Policy (the newer version of the policy that […] One of the access controls in SE Linux is for execmem – which is used to stop processes from creating memory regions that are writable and executable (as they make it easier to compromise programs and get them to execute supplied code). When the SE Linux audit log tells you that a program is attempting […] Recently I have been doing a bit of work on libcsoap (the C library for making SOAP XML calls over http) and the libnanohttp library that it depends on. The most important part of my work on it was making it thread-safe with the technique I described in my post about finding thread unsafe code […] My SE Linux Play Machine [1] has been offline for almost a month (it went offline late May 30 and has just gone online again). It’s the sort of downtime that can happen when you use Debian/Unstable. For a while I’ve been using a HP E-PC (a SFF desktop system with 256M of RAM and […] I have just uploaded refpolicy version 0.2.20100524-1 to Unstable. This policy is not well tested (a SE Linux policy package ending in “-1” is not something that tends to work well for all people) and in particular lacks testing for Desktop environments. But for servers it should work reasonably well. I expect to have a […] I was asked “Can you run SELinux on a XEN guest without any problem?“. In a generic sense the answer is of course YES, Xen allows you to run Linux kernels with all the usual range of features and SE Linux isn’t a particularly difficult feature to enable. I do most of my SE Linux […] |
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