ulimits and my limits

Even Linux systems have their limits!  One of the systems I manage started throwing a “Too many open files” error in /var/log/messages.  No error is good but this error is fixable.  A little tuning and the error goes away.  On this particular server we were running the Oracle Client and a Java Application, two very […]

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md5sum differences on identical systems

In troubleshooting a problem a colleague noticed that there were md5sum differences in the files of identical systems: ServerOne # md5sum /lib64/libc-2.12.so 27a605fdeaf7c835493a098213c9eec1  /lib64/libc-2.12.so ServerTwo # md5sum /lib64/libc-2.12.so 13e3eb598abd09279efc05e215e77ae2 /lib64/libc-2.12.s Analyzing a hex dump of the .so files showed cyclical differences at matching locations.  This is where I began helping to look at the problem.  […]

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