From the category archives:
Q. I’ve followed your Xcache php 5.x opcode cacher installation under RHEL 5 for my vbulltin board. I see good boosting in performance. Now I’ve installed 2nd VB forum on the same server and I see all sub-forums hosted from 1st forum. So I had to disable Xcache. I want Xcache for both board on same host. How do I fix this mess?
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Q.I’m using MySQL 5 under Red Hat Enterprise Linux 5. How do I change default mysql server port (tcp port 3306) under Linux or UNIX operating systems?
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Q. How do I check RAM speed and type (line DDR or DDR2) without opening my computer? I need to purchase RAM and I need to know the exact speed and type installed. How do I find out ram information from a shell prompt?
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Q. I made a mistake and added additional repo under CentOS / RHEL 5.x server. Now when I try to upgrade packages it gives me out broken dependencies / missing dependency error. How do I skip broken packages and apply updates to other installed software’s?
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Q. How do I view the pre / post installation or uninstallation script inside the RPM file called foo.rpm under Red Hat Enterprise Linux / RHEL / CentOS / Fedora / Suse Linux? How do I list the package specific scriptlet(s) that are used as part of the installation and uninstallation processes?
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Q. I’d like to keep same login screen for my school Linux desktop system lab. How do I create a custom gnome login screen or menu under CentOS or Ubuntu Linux desktop systems?
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Q. How do I detect port scan attacks by analyzing Debian Linux firewall log files and block port scans in real time? How do I detect suspicious network traffic under Linux?
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Q. I’m using Red Hat Enterprise Linux based Apache web server. How do I backup my Apache webserver, MySQL and PostgreSQL database to another disk called /backup and then copy it to other offsite backup ssh server called backup.example.com?
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Q. I see following error when I run make command to install specific software:
curses.h: No such file or directory Problem Solution
How do I fix this error under Red Hat Enterprise Linux (RHEL) or CentOS / Fedora Linux?
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Under Windows it is pretty easy to find out VMware server version. How do I find out remote vmware server version using ssh client running under RHEL / CentOS Linux 5.x?
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