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Chapter 12. Server Operating System > Versions and Patches

12.6. Versions and Patches

You should use the latest non-beta version of your operating system with all patches, because performance improvements are always being found and security holes blocked. You can see what version of the OS you are using when you boot up or by using the uname -a command on most versions of Unix. You should be aware that patches often introduce their own bugs, so check performance immediately after installing a patch. The Solaris Internet Server Supplement (SISS) patch for Solaris 2.5.1 gives about a 20% performance boost to Internet services under Solaris 2.5.1, both on Sparc and Intel CPUs. The SISS also gives you WebNFS (a file system for the Web) and the Java virtual machine for multi-CPU machines. SISS 1.0 is incorporated into Solaris 2.6. Under Solaris, showrev -p shows you the patches installed.


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