Cloud Applications

Article title: LILO, LinuxCrashRescueHOW-TO (III ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 3. other

Recently I learned the crawler framework scrapy by myself. I looked at the official website documents and couldn't wait to install it. The results were terrible. I searched an article on the Internet ). First, introduce the environment: 1.

The psax command displays a list of processes in the current system, which includes processes owned by the user. To display processes and their owners, run the psaux command. The list is a static list. In other words, it is a snapshot of the process

Article title: use iptables in a single Nic redhat7.2linux as a simple gateway configuration. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research,

Article title: Linux system configuration and optimization experience. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open

In Linux, there are 7 runlevels: 0: The system is down. The default running level cannot be set to 0. Otherwise, the system cannot start normally. Level 1: the operating status of a single user, root permission, used for system maintenance. remote

Article Title: Beware of data loss! Software defects discovered in the new Linux kernel. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded

Install yum-yinstallproftpdchkconfigproftpdon yum -y install proftpd chkconfig proftpd onSet startupInstall proftpd ./configure --prefix=/usr/local/proftpd make make install Configuration file directory/usr/local/proftpd/etc/proftpd.confAdd Group

For Linux user operation records, the command history is generally used to view historical records. However, if important data is deleted due to misoperations, The history Command will not be useful. So how should we implement the historical

Ulimitulimit-a is used to display various current user process restrictions. Linux limits the maximum number of processes for each user. To improve performance, you can set the maximum number of processes for each linux user based on the device

Sometimes we use a USB flash drive to install centos, and accidentally install grub to the USB flash drive. as a result, the boot needs to be inserted into the USB flash drive to start the server, or grub is damaged. in this case, we need to

IPv6 is enabled by default on CentOS, but it is useless at present. sometimes there are some problems. so, you can turn it off. 1. check whether IPv6 support is enabled for some systems # ifconfigeth0. you can see that inet6addr... indicates that

1. mail basic syntax h | headers displays the current mail list l | list displays the list of currently supported commands? | Help: display multiple command parameters for viewing the mail list. usage d: delete the current mail, pointer, and move

I. implementation principle using a "public/private key" authentication method for ssh login. A simple explanation of the "public/private key" authentication method is: First, create a pair of public/private keys on the client (public key File :~ /.

I am going to have a LinuxIO training in the company in the near future. I will sort out the relevant materials and share with you the position of various I/O monitoring tools in the LinuxIO Architecture & nbsp I am going to have a Linux I/O

For some reason, we need to redirect the httpd service accessing 10.0.3.49 to 10.0.3.26. so we studied how to use the NAT of iptables to redirect IP addresses and ports. In fact, it is very simple. we only need two steps. 1. First, make sure that

Check the CPU, memory, operating system version, and other information of the Linux server, and summarize common commands for future reference. 1. view the CPU model (8 logical CPUs) [[root @ mail ~] # Cat/proc/cpuinfo | grep & quot; name & quot; |

I. INTRODUCTION we all know that the Internet is insecure, but most of the applications used on it, for example, Web and Email are generally provided only in plaintext transmission mode (with exceptions such as https and smtps ). Therefore, when we

NetCat is known as "Swiss Army knife" in network tools, and has Windows and Linux versions. It is designed as a simple and reliable network tool because it is short (1.84 is only 25 KB, earlier version or even smaller version) and has practical

Nginx logs cannot be split by configuration. to split, you must write a simple script to implement this function. I used to use the cp command for the past, for example: #/bin/bashnginxLog = "/usr/local/nginx/logs/access. log "logBakFile