Archive for the 'CentOS' Category

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Viewing 21-30 of 414 FAQ -

Linux: pathmunge Command in Shell Script

Q. I see pathmunge used in few scripts under Red Hat Enterprise Linux. Can you explain the use of pathmunge under RHEL / CentOS / Fedora Linux?
Linux Create a Custom Gnome Login Desktop Screen

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?
psad: Linux Detect And Block Port Scan Attacks In Real Time

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?
dnstop: Monitor BIND DNS Server (DNS Network Traffic) From a Shell Prompt

Q. How do I monitor my Bind 9 named (or any other dns server) server traffic / network traffic under Linux? How do I find out and view current DNS queries such as A, MX, PTR and so on in real time? How do I find out who is querying my DNS server or specific domain or specific dns client IP address?
How To Back Up a Web Server

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?
Linux Error: curses.h: No such file or directory Problem Solution

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?
PHP.INI settings: Disable exec, shell_exec, system, popen and Other Functions To Improve Security

Q. I run a small Apache based webserver for my personal use and it is shared with friends and family. However, most script kiddie try to exploit php application such as wordpress using exec() , passthru() , shell_exec() , system() etc functions. How do I disable these functions to improve php script security?
Red Hat / CentOS Linux: Explain Use of Network Interface virbr0

I’ve installed Red Hat Enterprise Linux 5.2 and I see virbr0 network interface along with my eth0 interface? What it is? How do I disable or remove virbr0?
Install ntop on Red Hat Enterprise Linux / CentOS Linux
ntop is a network probe that shows network usage in a way similar to what top does for processes. How do I install latest version of ntop on RHEL / CentOS Linux 5.x systems?
Install RRDTool on Red Hat Enterprise Linux
I’ve downloaded RRDTool package called rrdtool-1.3.1.tar.gz. But ./configure command giving out lots of error messages. How do I install RRDTool on Red Hat Enterprise Linux 5.x - 64 bit version?