Linux

When the server is over 50, viewing the monitor picture has become a headache, and its own Zabbix graphs may not be particularly humane.So, we need a strong display of the page, Graphtrees may be. Graphtrees needs Zabbix version 3.0.1-3.0.3

Jailkit Combat Jailkit is a toolset that enables you to quickly create a limited user account in a chroot jail. It contains a security log daemon that shells users, opens and sets the tools for the Chroot jail daemon. Simple description 1, by

There are two ways to solve this problem: Method One: Modifying the BASHRC file disables the alias of CP [root@~]# VI ~/.BASHRC Add the "#" comment before alias cp= ' Cp-i ', and you can implement replication without prompting after you log in

XCache is an open source opcode cache/optimizer, which means that he can improve PHP performance on your server. By buffering data from the compiled PHP to shared memory to avoid duplication of compilation, he can increase speed by directly using

Name: CP Use Rights: All usersHow to use:CP [Options] Source DestCP [options] source ... directoryNote: Copy one file to another file or copy several files to another directory.-A,--archive equals-dr--preserve=all --backup[=control Create a backup

To modify the idea of root: Add a new user, and then set the user as root, so that we can login ssh to use the new user, this user only we know, this increased the difficulty of guessing, so the security of the VPS host further improved. First, add

Windows we can very convenient direct browser access to Speedtest.net for speed testing, in the absence of a graphical management interface of the Linux system, we can also use a small script speedtest-cli to speed. The small scripts used in this

Today, a co-worker has a problem with three 1T disks (SDB, SDC, SDD) added to several of the hosts he owns, but the new three partitions are added directly to a section using GPT partitioning. Because the previous MBR boot was used, and the LVM

The servers are:Server a:192.168.1.6, synchronizing directory:/var/wwwServer b:192.168.1.7, synchronizing directory:/var/wwwInstall UnisonFirst install OCaml, version is at least 3.07 or higherDownload Address: http://caml.inria.fr The

Configure NTP time synchronization on Linux with a break operation step, sorted as follows: 1. Install packages (on server and client): The code is as follows Copy Code Yum Install NTP 2. Server-side

Directly with Yum installation, command: Yum install SendMail, installed, began to start, command:/etc/init.d/sendmail start, show startup complete, then start test email, $rs =mail (' dalong0309@163.com ', ' This is the theme ', 'This is the

For example, check the size of the home directory: Du-s/home You can also: Du-sh/home /usr/local/apache/bin/htcacheclean-v-p/cacheroot-l500m Statistics: Size Limit 500.0M Total size is 91.8M, total size now 91.8M Total entries is 3754, total

Today's own virtual machine disk is completed, so I would like to add a disk, when mounted to find an error you must specify the filesystem type. (Note: My system environment is lcentos6.3 installed in VirtualBox virtual machine) It turns out that

System: CentOS 5.xRequired Packages: awstats-7.3.tar.gz 1. Modify Nginx Log format The code is as follows Copy Code Log_format Main ' $remote _addr-$remote _user [$time _local] ' $request '' $status $body _bytes_sent ' $

Installation Configuration Method One Personal Understanding: 1. It is based on the C language Libevent library for the development of2.Memcache is a c/s software, this software is the maintenance of memory.3. The data is used in memory and is

Glances is a Linux, BSD open Source command-line system monitoring tool, which uses the Python language development, uses the Psutil library to collect the system data, can monitor the CPU, the load, the memory, the disk I/O, the network traffic,

Access prompts the following error:Oops:cannot Change Directory:/home/ftpThe reason is that his CentOS system installed SELinux, because the default is not open FTP support, so access is blocked.View SELinux Settings The code is as

Such as: Unzip the file in the current directory: The code is as follows Copy Code Tar zxvf my_name.tgz or tar zxvf MY_NAME.tar.gz Example: View the contents of the Usr.tar backup file and display it as a

1. No ping /etc/rc.d/rc.localEcho 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all 2. Permissions control of user and password fileschmod 600/etc/passwdchmod 600/etc/shadowchmod 600/etc/groupchmod 600/etc/gshadow3. Add non-change attributes to the

You've learned to use the Touch command to create a file, and to use the mkdir command to create a directory Tigger. Now, you need to learn how to delete files and directories. Using the RM command to delete files and directories is a