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server service

How do I replace upstream "Location: http://server1.cyberciti.biz:8080/app/" http/301 response-header with "Location: http://www.cyberciti.biz/app/" in the response of the proxied server using nginx?
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Q. I've installed Postgresql under Red Hat Enterprise Linux 5.x server. I've created username / password and database. But when I try to connect it via PHP or psql using following syntax:

psql -d myDb -U username -W

It gives me an error that read as follows:

psql: FATAL: Ident authentication failed for user "username"

How do I fix this error?
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Q. How do I start and stop mysql server under Debian / Ubuntu Linux system?

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Restart Httpd Server

Q. I'm using CentOS / RHEL / Fedora Linux server and I'd like to restart my httpd server after making some changes to httpd.conf file. How do I restart httpd?
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