Linux

For some work, I need to give the system to some friends. I think they only need the SSH users with the lowest permissions. I will introduce the operation methods below. What if I have an SSH account with proxy permissions on VPS? Very simple. Two

Slow vsftpd login mainly because nameserver # defines that the IP address of the DNS server is not set, so we only need to set or update nameserver. In the process of using vsftpd, there has always been a problem that the ftp user login verification

In windows, we want to view the information about the motherboard, cpu, and memory, which can be directly queried using the Manager. However, you must understand these commands in linux, the following is an example. Note: We may need to check the

In Linux, there is no access library specifically designed for MSSQL, but MSSQL is derived from sybase. Therefore, the library used to access Sybase can naturally access MSSQL. FreeTDS is such an implementation. In Perl, DBI is usually used to

In linux, useradd adds a system administrator user. For example, useradd-m username adds a username user in the home directory. Let's take a look at the instance. In Linux, user management-related files include:/etc/passwd,/etc/shadow,/etc/gfoup,

On the linux server, we need to determine whether it can use the mail function in many ways. For example, we can use exists or phpinfo to check whether it can use the mail function. Here we will introduce these two methods. Use the exists function

Next, let's take a look at some details about the Debian 7 server migration and reconfiguration of the Web service. I hope this article will be helpful to you. First, install the compilation environment. Although we can easily bypass manual

PuTTY is a Telnet, SSH, rlogin, pure TCP, and serial interface connection software. Earlier versions only support Windows platforms, and earlier versions have supported various types of Unix platforms. Problem: It is often said that when you log on

Next, I will give you some introductions on how to build Python IDE Based on Sublime Text. I hope the article will help you. 1. Problem When I recently used Sublime Text 2 to write Python code, I found two minor issues: If functions such as img are

Vsftpd is an ftp software in linux. It can be used to upload and download files and data. However, some users may find that vsftpd logon is very slow and stops at once, so how can we solve the problem of slow vsftpd login? Let's take a look at the

There are many ways to install the php environment in linux. Common apt-get and make methods are used to install and configure the php environment. Let's take a look at these two instances. 1. Get the Installation File:

In linux, there are several ways to limit the CPU and memory usage. I will sort out the two commonly used methods here. I hope the article will help you. View cpu usage Enter "top" in the command line" You can start top The top full-screen dialog

In linux, the tar command is used most frequently to back up files. Let's take a look at how to back up files with ssh + tar and download the backup files to the local device. Currently, most virtual hosts have automatic backup functions, but

Next, I will use postfix to add anti-spam methods to prevent sender spoofing configurations. I hope this article will be helpful to you. Added the following configurations to prevent sender spoofing: The Code is as follows: Copy

After using some commands in linux, I don't remember. Here I will take a note of my linux commands. I hope this article will be helpful to you. View DisksDf-hView the file folder size in the current directory.Du-sh * View system cpuTop and press "1"

The vmstat Command reports statistics about Kernel threads, virtual memory, disks, traps, and CPU activity. Reports generated by the vmstat command can be used to balance system load activities. The statistical information within the system range

Vsftpd is an ftp server used in linux. It can implement File Transfer and download, and can define user-specified permissions. Let's take a look at the specific user configuration methods. System Environment: CentOS 5.5 x86_64Vsftpd has three user

Eight scheduling algorithms:: Rr | wrr | lc | wlc | lblc | dh | sh |Round-Robin Scheduling)Weighted Round Scheduling (Weighted Round-Robin Scheduling)Least-Connection Scheduling)Weighted Least-Connection Scheduling)Locality-Based Least Connections

Next, let's take a look at how chkconfig starts the program in linux, whether the startup sequence is the same as we thought, and how to set the Startup Program sequence. 1) The redhat Startup Mode and execution sequence are as follows: Load the

1. History Linux: Linux Is Not Unix Unix: it is the predecessor of Linux. Because of the charges, it can only be used by companies and schools. A good guy writes a Linux program after he thinks it is very good at school. Linux core: A kernel-based