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Linux: How to Identify 32bit vs. 64bit

Linux: How to Identify 32bit vs. 64bit
Often I find that I am needing to determine a) if an O/S install is 32bit or 64bit and b) if the CPU will support 64bit. I run into a lot of Linux boxes that have 64bit CPUs but the 32bit version of the distribution was installed. Here are a few quick ways to tell. For the O/S: The architecture should be listed as x86_64 for 64bit or i686 for 32bit. Using uname (-m or -p): 64bit $ uname -m x86_64 $ uname -p x86_64 32bit $ uname -m i686 $ uname -p i686 or using lscpu: 64bit $ lscpu | grep -i arch Architecture: x86_64 32bit $ lscpu | grep -i arch Architecture: i686 or using getconf: 64bit $ getconf...
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Java 7: Getting Self-signed/Untrusted Apps to Run

Java 7: Getting Self-signed/Untrusted Apps to Run
Well, in the name of security, it seems Java 7 has broken a whole lot of apps. I will not bother with the pros and cons of this, but will simply address how to get things working again. Java 7, by default, blocks “untrusted” and “self-signed” applications. In addition, it is 64 bit and will not work with Chrome on Macs, which is 32 bit. Trying to run such an app results in this annoying dialog: There are a couple ways around this. The most simple is to use the Java Security Preferences to lower the Security Level. This can be done by: Select “System...
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