Cloud Applications

Linux/Ubuntu root default password problem after Ubuntu is installed, the root does not have the default password, because you have not set the password for the root, your first user is in the admin group, he can set a password for the root user, so

Linuxsocket note constant & amp; pre-defined INADDR_ANY and other INADDR_ANY: all address definitions: # include & lt; netinet/in. h & gt; INADDR_ANY indicates the address 0.0.0.0. In fact, this address indicates an uncertain address, or all or any

A. Shell supports role control and has the following commands: 1. command & amp; let the process run 2.jobs in the background view the process running in the background 3.fg% n let the process running in the background n to the foreground 4.bg% n

DirectAdmin is a paid virtual host management software, usually referred to as DA. DA is simpler than Cpanel in terms of functions, but it also consumes less memory. More importantly, the price is cheaper, generally, it is appropriate to use or

In the Ubuntu English system, the Chinese input method is added to the Ubuntu system, including a small input platform (supporting pinyin, two strokes, five strokes, etc.), Fcitx, Ibus, and Scim. Scim and Ibus are input method frameworks.

Check what services are running on the port lsof-I: 123. this 123 indicates the port number you want to view. disable ports not commonly used in LINUX and disable Port 111/etc/init. d/portmapstop close port 25/etc/init. d/sendmailsdrop disable port 6

General Method for installing a wireless network card in Linux if your kernel supports your wireless network card, it is best. if not, it is recommended that you use ndiswrapper to install your wireless network card, which is much easier. I have

Notes for file management in linux 1. what impressed me most about file permission management in linux is its permission management, which is much more flexible and strict than that in windows. it is also convenient for users. Using the ls-l command,

Centos6.364bit uses tcmalloc to optimize nginx 1. tcmalloc stands for thread-cachingmalloc, an open-source tool developed by Google. Compared with the standard glibc Library's malloc. Tcmalloc has higher memory allocation efficiency and speed than

Save the following script as an nginx file and put it in/etc/init. d/nginx then you can use/etc/init. d/nginxstart command to start nginx/etc/init. d/nginxstop command to stop nginx/etc/init. d/nginxrestart command restart nginx boot automatically

In Linux, all users under a user group are searched online, and many copy articles are displayed. groups displays the user group of the currently logged-on user, and there is no user list of this user group. In practice, you can use the following

Linux add and manage custom commands Method 1: Simple commands use alias to start alias www.2cto.com to edit the shell configuration file used, such as bash. bashrc, zsh. zshrc, such as adding: aliasws & quot; cd ~ /Workspace & quot; reload the

UbuntuServer network configuration check network configuration www.2cto.com $ ifconfig configure DHCP client $ sudovi/etc/network/interfaces add ifaceeth0inetdhcp configure static IP address $ sudovi/etc/network/interfaceset... Check the network

As the name suggests, TcpDump, a network data collection and analysis tool, can completely intercept the "header" of packets transmitted in the network for analysis. It supports filtering network layer, protocol, host, network or port, and provides

There is a disk partition mounted to two directories, and umount-a is directly executed to detach two mounts. after the/etc/fstab configuration is not cleared, vi is enabled and/etc/fstab is enabled, restore to the original format, but the prompt "--

Basically, all Linux distributions Mount partitions when starting the system according to the/etc/fstab file configuration. In/etc/fstab, the Mount parameters are also different for partitions in different formats, and the results are different for

Pay attention to the error information of each problem, which is the best clue we can get when encountering a problem. For example, WARNING: couldntopen/etc/fstab: Nosuchfileordirectory clearly prompts that/etc/fstab does not exist. So what we need

Generally, a Linux system will have many file systems. However, it is also possible to configure a Linux system only through one or a few file systems, one reason you want to create multiple file systems is to control access to them by using the

Objective: to install a 64-bit Debian system, which adopts the network installation method and Gnome as the desktop system. I. content to be prepared: 1. Debian installation disk (1) Download the installation disk image I chose

The full name of CentOS is "community?iseoperatingsystem", which is released by RedHat. it is an ideal LAMP operating system with excellent stability, different from Ubuntu, CentOS is mainly used for servers rather than desktop environments. many