Archive for November, 2010
By default, when we are creating new user to Linux OS, all files from /etc/skel are copied to the new user’s home directory.
open-source social web application licensed under GPL version 2. It offers a networking platform combining elements of blogging, e-portfolios, news feed aggregation, file sharing, and social networking.
Certain built-in variables change the shell in ways that make your life a little easier, and you can define other variables to suit your own purposes. List out environmental variables.
The default configuration for firewall is to reject all incoming packets from outside. To allow it, we need to open particular port in Firewall. The default configuration file for iptables based firewall under RHEL / CentOS / Fedora Linux is /etc/sysconfig/iptables.
/proc/meminfo reports information about the Linux system’s memory.
vmstat reports information about processes, memory, paging, block IO, traps, and cpu activity. Reports give averages since the last reboot, information on a sampling period of length delay.
df displays total disk space available on the file system. If no file name is given, the space available on all currently mounted file systems is shown.
Disk Usage summarize disk usage of each FILE, recursively for directories under Linux. Check disk usage of your current working directory.
vsftpd. FTP users may authenticate themselves using a clear-text sign-in protocol but can connect anonymously if the server is configured to allow it.
SYNOPSIS #include <sys/socket.h> #include <linux/x25.h> x25_socket = socket(AF_X25, SOCK_SEQPACKET, 0); DESCRIPTION X25 sockets provide an interface to the X.25 packet layer protocol. This allows applications to communicate over a public X.25 data network as standardized by International Telecommunication Union’s recommenda- tion X.25 (X.25 DTE-DCE mode). X25 sockets can also be used for commu- nication without…