Linux

In Linux, the vi File Save exit command ': wq' and': x' are different vi is one of the most common editors in UNIX/Linux systems. I am used to using ": x "command to save the file and exit, do not want to use the": wq "command because it is more

Centos Mail Server postfix, saslauthd, dovecot installation configuration check sendmail www.2cto.com # rpm-qa | grep sendmail stop #/etc/init. d/sendmail stop # chkconfig -- level 0123456 sendmail off # mv/usr/bin/newaliases. orig #

Problems with the compatibility between CentOS and Broadcom 5709 that cause service network interruptions I. symptom 1: a machine in the development team is down (neither ping nor ssh ), I can see from the remote management port that the machine B

This system is not registered with RHN occurs in the yum update under RHEL. The solution is to use the CentOS yum software to upgrade the unregistered RHEL system: first rpm-qa | grep yum view yum service related package # rpm-qa | grep yum www.2cto.

After using yum to Upgrade firefox Ora to the latest version of firefox, it is found that the current firefox version can only be upgraded to the latest version by default,No cross-version upgrade, search, the following method is the most concise

GIT is a distributed version control software created by Linus Benedict Torvalds to manage Linux kernel development more effectively, unlike common version control tools such as CVS and Subversion, it does not have to be supported by server software,

Most of the logs for logging on to the linux pptp vpn user name pptpd are stored in files such as/var/log/messages,/var/log/daemon. However, after careful reading, the user name is not found in the logs, I don't know which account the user used to

Knowledge about common AIX commands lsvg-o rootvg # lspv hdisk0 # oslevel-rssaxlate-l hdisk3lsattr-El kernel-El proc0lscfg-vl kernel-vl pdisk * errpt-aj paste error code errclear 0 (Remember to back up) cp/var/adm/errlog/home/ww/err/errlog errclear 0

Error message for installing phpunit in ubuntu: Call to undefined method PHP_CodeCoverage_Filter: getInstance () First: www.2cto.com If you have problems with accessing components try another way. install pear sudo apt-get install php-pear Install

Linux Command set Wireless connection use iwconfig command javasiwconfig wlan0 essid "SPAEK" iwconfig wlan key s: liude0000123 dhclient wlan0 guest iwconfig is one of the User-layer configuration tools of Linux Wireless Extensions (LWE. LWE is a

In Unix/Linux, run the Find command to search for an empty directory: find/path-depth-type d-empty www.2cto.com: find/path-depth-type f-empty find the file by name: find/path-name name_of_file find the file by extension: find/path-name "*.

Reading Notes on Linux kernel design and implementation (5)-Main content of system calling: What is the implementation principle of system calling on Linux? A simple implementation of system calling 1. in simple terms, system calls are a bridge

* ===================================================== ============================================Coder: Paris-yeReleased on: 1/9/2003Test on: FIG 9.0Information:This is a arp spoof sniffer.W B M Make:First you must install "pcap" and

In traditional UNIX systems, DAC protection measures include file access mode and access control list, while MAC provides Process Control and firewall. The TrustedBSD Program combines the core FreeBSD release with trusted security components that

A firewall is deployed in the Linux operating system, which prevents other hosts from scanning the local machine. If an enterprise network has an independent firewall, similar restrictions can be implemented. For example, some enterprises have

In Linux, you can write iptables rules to filter data packets in and out of the Linux host to improve the security of the Linux host to a certain extent. In the new kernel version, added the recent module, this module can be based on the source

  When using a computer, it often deals with Encrypted documents, such as Zip, Rar, and even PDF documents. Sometimes we forget the password of the document and have to use the brute force cracking method. Is there any software in Linux. Of course,

  Install the XP and ubuntu dual systems. Later, when XP re-adjusts the partition, it accidentally disconnects the partition where ubuntu is located, because the grub that comes with ubuntu is used for multi-system boot, now, XP cannot be entered,

Ulteo released their "Virtual Desktop" software. This is a program that allows you to run Linux software in Windows. Currently, it is Beta1 and supports Chinese interfaces.The software is free of charge. What's interesting is that it does not run

4. MLinux is a mini Linux release that includes some system maintenance and recovery tools, for example, cfdisk and GNU parted are used to manage partitions, testdisk is used to restore partitions, photorec is used to restore files, and ntfs3g is