Linux

  Find command Syntax: find Search Path Matching expression Function: this command is used to find eligible files in a specified path. The search path can be multiple directories separated by spaces. (1) matching expression 1 -Name filename: name of

1. interface switching:   A) enter the character interface: Press ctrl + alt + F1:   1. First, you need to log on to the user and enter the user name and password, with the flag: login   2. Note: The F1-F6 is a character interface to achieve

  • Inode Before discussing the Linux system connection, I have to talk about inode first. Each object in the Linux file system has a unique inode index. Each inode number corresponds to one object in the file system, to view the inode number of a

  Two Mount Methods   Script that affects mounting external devices:/etc/fstab   Boot Script: The inittab contains some running commands.   User Script: login. defs limits the user's password modification time and id gid expiration time

  1. Start common Memcache Parameters -P set the port number (default value: 11211) -U UDP listening port (default: 11211, disabled when 0) -L binding address (default: All IP addresses are allowed, regardless of Intranet and Internet addresses

  The project was recently revised and the page was completely static.   The original dynamic page needs to be permanently redirected to a static page by 301, so that the search will transfer the weight of the original page to the New Static Page.  

  With your experience in Dos and Windows, you probably know that there are several types of files in the system, such as system files, read-only files, and hidden files. In Linux/Unix, file types are far more diverse and complex than Dos/Windows

You often need to copy some files from one server to another, You need to use the remote Copy command: scp For example: Copy/usr/a from the logged-on Server 1 (192.168.1.1) to the/usr directory of Server 2 (192.168.1.2, The command is as

(1) RedHat/CentOS/Fedora system password cracking  1. Press E in the grub option menu to enter the editing mode. 2. Add S (or Single) to the last line of the kernel editing) 3. Press B to start to single-user mode. 4. Run the following command #

I admit that I am so greedy. Since I installed fedora16 on my computer and turned it into a dual system, I was actually interested in opensuse. As a result, I was eager to install a three-system game, but in fact, I don't know much about linux. As a

View the number of connections in various states of the system tcp connection. Netstat-an | awk '/^ tcp/{++ S [$ NF]} END {for (a in S) print a, S [a]}'View All ip addresses that are connected to port 80 of the Local Machine and are in the status of

The IOS5 device in this article generally refers to iPhone 4S/iPad2, which is also available on other devices but not tested.I. Jailbreak today, the famous hacker pod2g team released the IOS5 jailbreak tool For Linux. I have just escaped my iPad2.

When CentOS yum appears "cocould not retrieve into list http://mirrorlist.centos.org /? Release = 5 & arch = i386 & repo = addons error: [root @ server mysql-5.0.56] # yum install gccLoaded plugins: fastestmirrorLoading mirror speeds from cached

TortoiseSVN is a free open-source client of the Subversion version Version Control System, which can manage files and directories over time. Files are stored in the central version library. Apart from remembering every modification to files and

CentOS5.5 basic services by default Service name Function Default Suggestions Remarks NetworkManager Used to automatically connect to the network Close Close Useless to servers Acpid Power Switch

In tomcat 7 free installation version, the user name and password are not enabled by default, We need to manually specify in the tomcat-users.xml file (in the conf folder ), some account information has been written in this file, but the comments

1. display the number of CPUs:Hp-unix: ioscan-C processor | grep processor | wc-lSolais: psrinfo-v | grep "Status of processor" | wc-lLinux: cat/proc/cpuinfo | grep processor | wc-lAIX: lsdev-C | grep-I processor | wc-l2. display the memory quantity

After a few days of hadoop testing and testing, it is difficult to monitor the cluster status. For example, you can only view the cpu attribute of datanode when running a large file. Then I checked it online and found a ganglia management tool and

ApacheBench (AB)The apache Server comes with a tool named AB (ApacheBench). You can use this tool in the bin directory to test the server load. Usage:AB-n all requests-c concurrency test url Concurrency Level: 50 # ConcurrencyTime taken for tests: 92

1. Install vsftp server on the target server 2. # Useradd-d/ftpdir ftpuser create an ftp user and specify the home directory as the upload directory # Passwd ftpuser Enter Password # Chown ftpuser/ftpdir change the owner of the upload directory so