Tag Archives: Linux

How to physically identify a software RAID disk member

What you need: a good earing smartmontools Indeed, so far, I haven’t found anything better than launching a process making a lot of disk activity. This command just do it: The “short” test will give you a few minutes to carefully listen and select the right disk. Well, it sure is pretty primitive! But do [...]

OpenSSL : CVE-2009-3555 security fix and mod_ssl client authentication breakage

A security advisory on OpenSSL has recently been published. Details are there and there. It is vulnerable to a MiTM attack where the attacker can intercept and retrieve the credential to a trusted HTTPS website, by intercepting the session cookie sent back to the client. A proof of concept of an attack against Twitter was [...]

openSUSE kernel sources : patching against sock_sendpage() NULL Pointer Dereference vulnerability

I am using the 2.6.30 kernel sources from Kernel:linux-next and noticed that it has not yet been patched against the ’sock_sendpage()’ NULL Pointer Dereference vulnerability. The threat is serious as it could allow a local user to gain root privileges. Those who compile their own 2.6.x kernel should apply this patch (from Linus, check there [...]

Btrfs : a key feature coming to Linux

Great and clear article there from Linux magazine that sums up the new BTRFS file system. I can’t wait for it to become stable ! UPDATE 2009-02-05 : I hope to see this soon on a Linux distribution.

Linux vs Windows benchmark

I found this benchmark, comparing the performance of Ubuntu, Windows Vista and 7 worth reading. Our Linux kernel does a great job !

/etc/mtab~ issue at startup

I don’t know how it really happened – probably a VMWare crash that locked my file system, but after a reboot I got this message at startup : As a result, some of the partitions were not mounted and the system was pretty much broken. But, no need to panic, just erase all the lock [...]

VMWare Workstation 6.5

I have just upgraded WMWare from version 6.04 to 6.5, and I have to say that it has very nice new features. The first surprising thing was the file I downloaded. It is now not anymore a tar.gz archive but a .bundle file. After downloading, as root, just make it executable or start it with [...]

The SSL/SSH disaster

Due to the recent security hole discovered in Debian, which has also concerned various distributions – of course including Ubuntu – for 2 years, I simply closed all my SSH and OpenVPN accesses. I have had no time so far to check all the keys on my server. I prefer to stay on the safe [...]