File types and extensions in Linux

This article describes in detail the file types and file extensions in Linux. It provides detailed descriptions of each file type and the file suffix. For more information, see Linux file types and Linux file names represent two different concepts.

Network configuration related file configuration options in CentOS

This article describes how to configure network configuration related files in CentOS. For more information, see CentOS. CentOS modifies network-related configuration files such as IP addresses Find the IP address configuration file: ifcfg-eth.Path:/

File I/O tutorial in linux

This article introduces the file I/0 in linux. for the kernel, all opened files are referenced by file descriptors. Each process has some associated file descriptors. The file descriptor is a non-negative integer. When you open an existing file or

Write the kernel-level backdoor program under Linux2.6.x

Author: wztEMail: wzt@xsec.orgSite: http://www.xsec.org & hhtp: // optional Author: wztEMail: wzt@xsec.orgSite: http://www.xsec.org & hhtp: // hi.baidu.com/wzt85Date: 2008-8-29 I. INTRODUCTION to kernel backdoors2. system calls in the kernelIII. use

Remote strategy: SecureCRT uses the RSA key to log on to SSH

I have been logging on to ssh through password and keyboard interaction on SecureCRT, but I have never tried it successfully. today I was inspired by an article, and I tried it on the virtual machine installed the other day. SecureCRT5.5.1 used by

Installation, optimization, and security settings of Apache2.x in CentOS

Web server software installation sequence: Mysql -- & gt; Apache (httpd) -- & gt; PHPApache: Installation Web server software installation sequence: Mysql --> Apache (httpd) --> PHPApache: http://www.apache.org/dist/httpd/ Decompress the package and

Linux security configuration steps

I. disk partition 1. if the system is newly installed, security should be considered for disk partitions: 1) root directory (/), user directory (/home), temporary directory (/tmp) and/var directories should be separated to different disk partitions;

How to use Mdadm to establish RAID 5 storage in CentOS4.4

& Nbsp; 1. Environment 1. the operating system is CentOS4.4, and the mdadm software is provided by the system. the version is 1.6.0-32. hda is installed with four hard disks, sda, sdb, sdc, and sdd, which are raid 5. sdd is hot backup. II.

Add a Windows shared printer through Samba in Linux

& Nbsp; basic information: there is a windows-connected machine in the local area network. we want to use this printer on Fedora8. Basic process: 1. ensure that the sambaserver is in the working state, which is not described here. 2. download the

Editor selection elements for Linux development tools using C ++

The first thing to do for development is to select an appropriate editor. The editor selection determines your development efficiency. Next I would like to talk about the three elements for choosing the appropriate compiler. In order to save

Complete Linux kernel analysis-mathematical co-processor (1)

The kernel directory kernelmath contains the math coprocessor simulation code file, which contains 9 C language programs. See Table 11-1. This chapter is closely related to the specific hardware structure. The kernel directory kernel/math contains

How to install a TCP/IP router in Linux

To use Linux as a Router, you must first confirm that your LinuxKernel supports IPForwarding, that is Prerequisites for Linux as a Router To use Linux as a Router, you must first confirm that your Linux Kernel supports IP Forwarding, that is, you

Linux file creation command: tail command to create self-decompressed tar file

This article lists the tail commands in the linux file creation command to teach you how to use the tail command to create a self-decompressed tar file. The Tail command parameter has a parameter-n, -- linesN, which can be directly output by This

Use SMTP Security Manual in LINUX-Qmail Security

Qmail has a configuration file named rcpthosts (the file name originates from the rcpthosts command), which determines whether to accept an email. This email is accepted only when the domain name of the recipient address in the rcpthosts command

New win7 function: How to know if someone else has used your computer

& Nbsp; new features of win7 if you know whether someone else has used your computer, start Windows7 first, enter the edit Group in the search box, and you will immediately find the edit Group Policy, click to start the program editing group policy.

Install FreeBSD remotely through PXE + NFS

To remotely install FB through PXE + NFS, you need A host A with TFTP + DHCP-Server + NFS installed. The NIC of host B must be started in PXE mode. 1. configure TFTP + DHCP-Server + NFS on host A: & nbsp; 1) configure TFTP: & nbsp; & nbsp; & n To

Use escalations to limit the number of Nagios alarms

Nagios is a very powerful monitoring tool, especially its alarm function. It now supports a variety of forms on the Internet, such as mobile phone 139 mailbox, Fetion, and MSN, however, if the server fails to be resolved in a timely manner, Nagios

How to install Tomcat in Linux

One, preparations before installation: 1, Linux version: [root @ tpwb/] # uname-r2.6.9-34.EL (version kernel) 2, tomcat version: jakarta-tomcat-5.0.28.tar (size: 10.2 M) you can go to the kernel 1. preparations before installation:1. Linux version: [

Use Squid in Ubuntu to set a machine as a proxy server

In Ubuntu, use Squid to set a server as a proxy server. first install squidsudoapt-getinstallsquid and then check that squid is installed there and whereissquid is used to modify the squid Configuration file sudogedit/etc/squid. conf and then go to #

Linux Basic Operation Commands

# ------------------------ # View server information # ---------------------- 1. view the version, kernel cat/etc/issue2. view cpu, memgrep "modelname"/proc/cpuinfogrepMemTotal/proc/meminf #------------------------# View server information#----------

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