Cloud Applications

Linux command line is boring. Have you ever seen a train in Linux command line? What about cats and mice? Editing Linux command lines is not always a serious issue. You can use it to entertain yourself. Next we will discuss with you the

Nic binding to a single kernel process and asynchronous I/O should be able to achieve optimal communication performance, but in reality, we often find that this mode does not achieve the expected results, this may be because the NIC is competing for

Configure YUM local repository 1. I use an image file to mount a CD, mount-oloop/root/centOS5.4.iso/media/cdrom can also be used with mount-tiso9660/dev/cdrom/mnt/cdrom to use this to ensure that the/mnt Directory has cdrom this folder 2. install...

When using vncviewer to remotely access centos, the following error occurs: unableconnectedtosocket111 solves the problem of centosunableconnectedtosocket111 recently accessed centos6.4vncserver through vncview: 1. use root... when you use vnc

Memcache configuration for storing sessions/usr/bin/memcached-m64-c2048-f1.10-l192.168.2.10-p11200-n1024-I5242880-uapache &-rmaximizecorefilelimit-c client connections-fsla... memcache configuration for storing sessions/usr/bin/memcached-m 64-c 2048-

Use yum to download and install the subversionSql code yuminstallsubversionapr-1.2.7-11subversion-1.4.2-4.el52. create the subversion Library Java code svnserve-d-r/home/xxx/svntestSql generation... build subversion 1 in linux. use yum to download

Sometimes we need to copy a file in batches using linuxshell. The same principle applies to batch users. The knowledge used: test or [: can be used to compare the arithmetic comparison-equal eq-ne-gt greater than-ge is greater than or equal to-lt...

When the Shell enters the password, the screen is closed and displayed in actual applications. Generally, when we type the password on the keyboard, we do not want to display it on the screen. to do this, we can use the following two methods: &

Use awk to process tagged text. assume that & quot; 123 & lt; em & gt; abc & lt;/em & gt; 456 & lt; em & gt; def & lt; /em & gt; 789 & lt; em & gt; ghi & lt;/em & gt; & quot; the length of a string in such a string is 5, the returned string should

Display variables and set the display format of variables: # echo $... # echo $ variable # echo $ PATH or echo $ {PATH} # mynametian # In the echo $ myname variable, double quotation marks or single quotation marks can be used if there is a blank

Use the shell command in combination with grepawksedsort # when processing a ticket, select the desired ticket first. here, select the AAA ticket, then sort by corresponding fields # The-k parameter is generally used, and + 0.4 is generally used

Users with shutdown permissions created in linux 1. logon analysis login: username password: after the password is entered, start to review the files/etc/passwd and/etc/shadow. if the user name and password are approved, read the files in the main

Simple tips and commands for linux beginners (2) ctrl + alt + d display desktop pwd display current path uname-r View machine kernel version touch new empty file/change file creation time if this file is not available new empty file, if cd... news &

Sudo, which restricts useradd in linuxsudoers, is familiar to everyone and allows an account to execute some applications as other identities. The problem we encountered today is that we want tom users to manage system accounts. However, when you

Gdb debug simple command to compile gcc-g-O2-otesttest.c debug gdbfilenamegdbfilefilename view program list (l) add breakpoint break at a function entry (B) function name add breakpoint break (B) on the specified line) the row number is in...

Ckermit installation and configuration install kernel # apt-getinstallckermit modify the configuration file configuration of kermit -------------------------------------- # vi/etc/kermit/kermrc is... ckermit installation and configuration install

Linux configure static IP, set DNS and host name 1: Static IP # vi/etc/syssconfig/network-scripts/ifcfg-eth0DEVICEeth0BOOTPROTOstaticHWADDR; here is the physical address of your network card, you do not need to enter the network card that is usually

CentOS uses the top command CPU load CentOS is the product of source code re-compilation of RHEL (RedHatEnterpriseLinux), and many known bugs have been fixed on the basis of RHEL. compared with other Linux releases, its stability is trustworthy.

To enable ibus to start with Ubuntu, install Ubuntu without starting ibus by default. you can use the following method to start ibus: Method 1. system & gt; Administration & gt; configure agesupport and set & quot; KeyboardInputMethodSystem... to

How to mount the optical drive Linux Mount method of mount the optical drive command line code # mkdir/mnt/cdrom // create a directory for mounting the optical drive # mount-tiso9660/dev/cdrom/mnt/cdrom/mount the optical drive it must be noted that,