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  2. ifconfig - Wikipedia

    en.wikipedia.org/wiki/Ifconfig

    [2] Many Linux distributions have deprecated the use of ifconfig and route in favor of the software suite iproute2, such as ArchLinux [3] or RHEL since version 7, [4] which has been available since 1999 for Linux 2.2. [5] iproute2 includes support for all common functions of ifconfig(8), route(8), arp(8) and netstat(1). It also includes ...

  3. ethtool - Wikipedia

    en.wikipedia.org/wiki/Ethtool

    The ethtool userspace API can be accessed from programs written in the C and C++ programming languages through the C standard library or C++ standard library respectively. Several scripting languages such as Perl and Python provide ethtool API bindings that allow programmers using these languages to write scripts that can control NIC's.

  4. sudo - Wikipedia

    en.wikipedia.org/wiki/Sudo

    sudo (/ s uː d uː / [4]) is a program for Unix-like computer operating systems that enables users to run programs with the security privileges of another user, by default the superuser. [5] It originally stood for "superuser do", [ 6 ] as that was all it did, and this remains its most common usage; [ 7 ] however, the official Sudo project ...

  5. tcpdump - Wikipedia

    en.wikipedia.org/wiki/Tcpdump

    tcpdump is a data-network packet analyzer computer program that runs under a command line interface. It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. [3] Distributed under the BSD license, [4] tcpdump is free software.

  6. Defensive programming - Wikipedia

    en.wikipedia.org/wiki/Defensive_programming

    Example 2: legacy code may have been compiled and tested on 32-bit architectures, but when compiled on 64-bit architectures, new arithmetic problems may occur (e.g., invalid signedness tests, invalid type casts, etc.). Example 3: legacy code may have been targeted for offline machines, but becomes vulnerable once network connectivity is added.

  7. C file input/output - Wikipedia

    en.wikipedia.org/wiki/C_file_input/output

    The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.

  8. Hot spot (computer programming) - Wikipedia

    en.wikipedia.org/.../Hot_spot_(computer_programming)

    An instruction set simulator can be used to count each time a particular instruction is executed and later produce either an on-screen display, a printed program listing (with counts and/or percentages of total instruction path length) or a separate report, showing precisely where the highest number of instructions took place.

  9. Burst error-correcting code - Wikipedia

    en.wikipedia.org/wiki/Burst_error-correcting_code

    Proof. We need to prove that if you add a burst of length to a codeword (i.e. to a polynomial that is divisible by ()), then the result is not going to be a codeword (i.e. the corresponding polynomial is not divisible by ()).