With the relatively recent change in the frequency of Java releases (every six months) it has become pretty much required to be able to have multiple JDKs on one’s development machine, and being able to run/test them at different times, for different projects, or even for the same project. Motivation While some wizardry with symlinks … More Support multiple JDKs in Debian Linux
overview Uses OpenSSL library to encrypt a file using a private/public key pair and a one-time secret. A full description of the process can be found here. configuration This uses a YAML file to describe the configuration; by default it assumes it is in /etc/filecrypt/conf.yml but its location can be specified using the -f flag. … More filecrypt – OpenSSL file encryption
A new (remastered) set of Ardis icons for Ubuntu desktop has recently been released, and they are a very pretty eye-candy (working really well with the Ambiance Crunchy theme – favor the green variant).
Private/Public keypair Create the private key (one-off): openssl genrsa -out ~/.ssh/key.pem 2048 chmod 400 ~/.ssh/key.pem then extract the public key from it: openssl rsa -in ~/.ssh/key.pem -out ~/.ssh/key.pub -outform PEM -pubout NOTE The whole mechanism revolves around keeping the secret key key.pem, well, secret. This is the only critical part of the scheme. Everything else, … More HOW-TO Encrypt an archive file
I have just published a gist that shows how to build and install Apache Mesos on a Ubuntu 14.04 VM or physical box. The Getting started instructions are a good start (well…) but are somewhat incomplete and currently look a bit outdated (I plan to fix them soon): however, the outcome has been that I … More Building and Installing Apache Mesos
Symptom When mounting a valid share, NFS denies access: $ mount /mnt/backup mount.nfs: access denied by server while mounting server:/share/USBDisk1 Solution The mount point is not exported. Find out where the mount point points to on the client side (although, that info was already in the error message): $ cat /etc/fstab # /etc/fstab: static file … More NFS mount fails with “access denied by server”
I’ve recently taken up the Eclipse team at Google (we integrate Google’s internal build tools and distributed development environment with the Eclipse Platform) and we are constantly faced with the challenge of maintaining several distributions in a multi-user environment.I thought I’d use some of the goodness we’ve come up with in my home environment too, … More Automating Eclipse launch
Warning – this post if filled with hatred, if you believe in forgiveness, you may want to look away now. In my book, the only sin worse than uselessness, is actively causing damage and waste of time.What punishment ought to be meted then, to something that, having proven to be useless, causes untold waste of … More Ubuntu: Network Manager is evil
I got the following fix from here, but it does not tell the entire story:(my setup: Acer Aspire One AO751h, Ubuntu Lucid 10.04.2 LTS) I had the same problem on an Acer Timeline for a long time, but the balance trick works.Solution:A better way than changing the output balance is to use alsamixer or … More Skype on Ubuntu 10.04 – mic doesn’t work
Boost is an open source library of extremely useful and carefully designed C++ classes and methods ranging from graph algorithms, to regular expressions matching, to multi-threading.Part of the Boost library was also integrated into the C++ standard as the TR1 set of libraries.You can learn more about Boost here.Using it with Eclipse in Ubuntu is … More Using Boost in Ubuntu with Eclipse
