There are already several articles about perfect forward secrecy and safe ssl configuration with according recommendations on the net, like this

But I missed somehow a short overview for me with verification instructions and all information links in one place. So this article is going to cover Perfect Forward Secrecy(PFS) for the software: apache, postfix, dovecot and represents somehow a summary over different information.

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The installer of Linux Mint doesn’t support the installation on encrypted raid 1 with LVM out of the box.

Following steps are required to do this with Linux Mint 16 (without GPT&UEFI)

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We are using only Linux and no Odin and VirtualBox to update Galaxy S II to Android 4 alias Ice Cream Sandwich.

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We are going to install ClockworkMod Recovery on the Galaxy Tab 2 10.1 (GT-P5100) with heimdall. After that you can root your stock image or install CyanogenMod on your tab. If you have another version of Galaxy Tab 2 you will need other images for it, for links take a look at the links at the bottom.

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We are going to create a simple cron job to dump the DBs, so you can save this dumps on the regular way with your backup software.

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If you running some php web applications with heavy load you should use some accelerators like APC or eAccelerator for PHP. I noticed that official build instructions in readme’s and official homepages are not completely usable to get it working.

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You may need custom recovery if you want to do nandroid backups of flash some zip files. I will use Linux to flash it.

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If you are going to create the VMFS partition on the some mew local hdd or hardware raid volume, you can get in trouble with a message “Failed to update the disk partition information”. The reason for it is a broken/missing dos label on the device.

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If you get degraded DRBD with log messages like “Split-Brain detected but unresolved, dropping connection!”, you have to manually resolve split brain situation.

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Install everything

  • Install freetds for your distribution, you can find RH packages at atrpms.net.
  • Depending on your distribution you will need to install libtdsodbc
  • Install php odbc extension

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