11-07-2011
Difference between system calls and normal functions in C
hello all,
i'm a beginner in linux programming. I need to know what is the difference between system calls and normal functions like fopen, fread etc in C?Also how to set permissions by using open system call?
Last edited by aarathy; 11-07-2011 at 02:24 AM..
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LEARN ABOUT CENTOS
ifenslave
IFENSLAVE(8) BSD System Manager's Manual IFENSLAVE(8)
NAME
ifenslave -- Attach and detach slave network devices to a bonding device.
SYNOPSIS
ifenslave [-acdfhuvV] [--all-interfaces] [--change-active] [--detach] [--force] [--help] [--usage] [--verbose] [--version] master slave ...
DESCRIPTION
ifenslave is a tool to attach and detach slave network devices to a bonding device. A bonding device will act like a normal Ethernet network
device to the kernel, but will send out the packets via the slave devices using a simple round-robin scheduler. This allows for simple load-
balancing, identical to "channel bonding" or "trunking" techniques used in switches.
The kernel must have support for bonding devices for ifenslave to be useful.
OPTIONS
-a, --all-interfaces
Show information about all interfaces.
-c, --change-active
Change active slave.
-d, --detach
Removes slave interfaces from the bonding device.
-f, --force
Force actions to be taken if one of the specified interfaces appears not to belong to an Ethernet device.
-h, --help
Display a help message and exit.
-u, --usage
Show usage information and exit.
-v, --verbose
Print warning and debug messages.
-V, --version
Show version information and exit.
If not options are given, the default action will be to enslave interfaces.
EXAMPLE
The following example shows how to setup a bonding device and enslave two real Ethernet devices to it:
# modprobe bonding
# ifconfig bond0 192.168.0.1 netmask 255.255.0.0
# ifenslave bond0 eth0 eth1
AUTHOR
ifenslave was originally written by Donald Becker <becker@cesdis.gsfc.nasa.gov>, and has since been updated by various kernel developers.
This manual page was written by Guus Sliepen <guus@debian.org> for the Debian GNU/Linux system.
May 31, 2019