Cloud Applications

LINUX-awk command NF and $ NF differences LINUX-awk command NF and $ NF difference Q & A: 1. what does $ NF in awk mean? # Pwd/usr/local/etc ~ # Echo $ PWD | awk-F/& amp; #39; {print $ NF} & amp; #39; etcNF indicates the domain of the browsing

View the Accessed program [@ zw-76-82 ~] based on the nestat Port # Lsof-itcp: 33982commandpiduserfdtypedevicesizenodenamejava9587fetch400u0000478814348tcp220. 181.61.221... view the Accessed program based on the nestat port [@ zw-76-82 ~] # Lsof-I

Several common commands during Squid installation and debugging. when your squid. conf configuration document is modified according to your ideas, the squid journey begins. 1. initialize you in squid. the cache directory configured in conf #

Mount usage-common partition loading method mount mounting iso files: Shell code # mkdir/mnt/iso1 # mount & amp; ndash; olooplinuxsetup. iso/mnt/iso1 can directly read iso files without the virtual optical drive in linux. Mount an optical drive

At present, there are a lot of well-performing shared IPVPS in China, but because there is no independent IP address, it will be troublesome to configure the environment. Because I am using the vps of the shared IP, I will share some configuration

Ubuntu startup settings in windows 1. after windows xp is reinstalled, the Ubuntu startup item will be restored (Ubuntu installed with wubi). I will install wubidr and wubidr in the ubuntu-& gt; winboot folder. copy two mbr files to the root

We know that Linux NAT is a stateful NAT based on ip_conntrack, and its configuration is similar to BSD keepstate! If you take a look at the PREROUTING of Netfilter, you will know that ip_conntrack depends on ip_defrag, which is the IP segment of

[Linux] one of Shell Study Notes & mdash; installation and preparation system version: CentOS6.4 how to open the command window: application, system tools, how to obtain root permissions on the terminal: under the terminal, enter su and then enter

Summary of common Linux Commands & mdash; vi editor vi is a powerful editor on the linux command line interface. Three command modes of Vi: you can use vi commands to manage files, such as moving optical objects, deleting and moving characters and

Get the ubuntu root password and say goodbye to sudo. a friend who just started using ubuntu may know a privilege escalation command. if you have been in touch with other Linux systems, you will know that linux has the highest permission root.

Ubuntu13.04 add desktop icon computer Recycle Bin and application icon 1 desktop application icon find urs/share/applications directory in the file center copy the icon you want to add to the desktop (apt-getinstall add installer (terminal Command

[Ubuntu] is/& amp; times; the prepared disk is not ready or does not exist. this is because the partition (disk) UUID is changed due to formatting or re-partitioning of the original disk partition. For example, the disk for/windows/C is not ready or.

Ubuntu quick desktop display: In Ubuntu, press Ctrl + D to minimize all windows and immediately display the desktop, similar to the desktop button function in xp. However, this requires the shortcut key settings. 1. find System settings 2. enter the

Unzip tutar decompression error solution maybe you have installed ubuntu on virtual machines more or less. based on your love for linux and the purpose of learning, after I installed ubuntu12.04 on a virtual machine, A Vmtools will be installed

Linux performance tuning 14: adjusting socket buffer talking about linux performance tuning 13: performance analysis concepts http://www.2cto.com/os/201307/229890.html Applications communicate with remote hosts through socket system calls. Each

Linux performance optimization 16th: network card binding: linux performance optimization 15th: common network parameter sorting http://www.2cto.com/os/201307/230155.html In the production environment, preventing single point of failure (SPOF) is a

Using putty to log on to Linuxputty with a certificate is a small and free remote connection tool in windows, which is favored by administrators. However, putty cannot record passwords, which makes many people feel uncomfortable. Of course, there is

From the command line to get the eth0 IP address in linux to learn awk, please execute the command to retrieve the eth0 IP address in linux (please use cut, the ability can also use awk, sed command to answer ). Answer: Note: There are no more than 1

In RedHatLinux, configure a firewall under the firewall configuration graphical interface under the command line as follows: (enable Https, SSH, and HTTP ports) under the command line, modify the File:/etc/sysconfig/iptables and add the following

In linux, the vim configuration document setnocompatible & quot; disables the vi compatibility mode syntaxon & quot; auto syntax highlighting setnumber & quot; displays the row number setrxon & quot; opens the status bar... in linux, vim