Bison is an replacement for the yacc. Bison is basically a parser generator similar to yacc.

This explains few bison command line options that you can use to generate your output file based on given input file.
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When you deploy a ear or war file in the JBoss AS 7, you might see “JBAS015877: Stopped deployment” error message in the log file, with a failed deployment.

For example, when I tried to deploy “MyProject.ear” file to JBoss AS 7, I see the following error message in the Jboss server.log file.
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rsyslogd is used to log messages and it is based on syslogd but with several additional features.

Apart from supporting logging on local systems, it also supports logging on remote systems.
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lsattr command comes along with the e2fsprogs package, which will display the file attributes from a Linux second extended filesystem.

In this article, we’ll review few examples on how to use this command.
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If you are using Apache 2.4 and above, you might get the following error message. This might specifically start happening after you’ve upgraded from an older version of apache.

For example, after you’ve upgraded from Apache 2.2 to a latest version, you might start getting the following error message.
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chfn stands for Change Finger.

This command is used to change finger information of the user.
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When you are starting Apache server, you might get the AH00557 and AH00558 warning message as shown below.
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ssh-keygen generates, manages and converts the authentication keys (private and public keys) used by SSH. You can generate both RSA and DSA keys. You can also generate Diffie-Hellman groups.
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Q: When I reboot my DELL PowerEdge 2950 server, I see the “Memory/Battery Problems were Detected” message. But, when I press any key to continue, it works without any issues. Do I need to worry about this? Or, just ignore it? What is the best method to fix this issue?

A: First, you cannot just ignore that error message. You should really fix it. The message you’ll see will be similar to the following:
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Probably one of the main reason you might choose to use Oracle VM when compared to other VMs is because of Oracle licensing, which allows you to restrict physical CPUs or cores that can be assigned to a VM for Oracle database licensing purpose.

This tutorial explains how to assign only one CPU to an Oracle virtual machine.
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