error message

My CentOS Apache 2 (httpd) webserver will not start. It was working fine, but I made few changes to httpd.conf and it is not restarting. What are some things to check in order to solve my Apache server restart issues?

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Q. I’m getting an error as follows while trying to run a shell script over remote ssh session:

/bin/bash: bad interpreter: Text file busy

How do I fix this error message and run the script?


Q. How do I get rid of an error message that read as – “Page allocation failure”?

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How do I fix – “Public key Blacklisted (see ssh-vulnkey(1))” error under any Linux based desktop system?


Q. How do I redirect stderr to stdout? How do I redirect stderr to a file?


Q. When I type the following command under CentOS 4.x / Fedora Linux: enable hplj2 I see the error message: -bash: enable: hplj2: not a shell builtin How do I fix this error?