The RPMforge project is an open source project that provides RPM packages for various distributions (RH, CentOS, Fedora, …). To enable RPMforge you can install the rpmforge-release package for your distribution. For RHEL5 / CentOS-5: i386 # wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm # rpm -Uvh rpmforge-release-0.5.1-1.el5.rf.i386.rpm x86_64 # wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm # rpm -Uvh rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm For older releases (RHEL [...]
If the Linux server time and date is wrong and you need to set it to new values from the shell prompt, you should use date command. You must login as root user to use date command. Also from command prompt you can check and set system clock (hwclock command). Use the following syntax to [...]
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If you are administrating a mail server and use blacklists to block spam, sometimes you may have a problem with certain mail servers. This happens because a specific mail server was blacklisted. You can see that one server was blacklisted if you trace your maillog: reject: RCPT from unknown[196.206.244.208]: 554 5.7.1 Service unavailable; Client host [...]
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