Linux

Platform: Mini2440System: linux-2.6.32.2Host: WindowsWhen configuring Usbnet in the USB gadget feature, the main task is to load the G_ Ether.ko module, but tried several times to plug into the computer, are not responding, Windows can not identify

RS232 serial Communication Interface: When the communication distance is close (Definition of 9 foot pin:CDC data carrier detection, RXD receive data, TXD send data, DTR data interrupt preparation, GND signal ground, DSR data device ready, RTS

The implementation process of HTTPSHTTPS (hypertext Transfer Protocol over Secure Socket Layer: is an encrypted HTTP protocol, but he and HTTP are two different protocols. It is based on the TCP protocol and works on port 443.How HTTPS works,

The Gentoo file Manager, Rox-filer, Xfe, and PCMANFM are among the best non-traditional file management tools on the market that are lightweight, powerful, easy to configure, independent of any particular desktop environment, and easy to maintain.

The top command is often used to monitor Linux system conditions, such as CPU, memory usage, the programmer basically knows this command, but it is strange to use it very few people, such as the top monitoring view of the memory value of the meaning

Regular expression is a kind of requirement to deal with a lot of complicated data, to do fast searching, fast matching, fast substitution and deletion. Common regular expression commands have Grep,sed,awk (Three Musketeers) vi,egrep. The extended

I have a "brother Bird's Linux private dishes-server erection." The 9th chapter explains the principle and configuration of the firewall in detail. Basic knowledge The NetFilter firewall mechanism is built into the Linux system kernel. NetFilter

In fact, a beginning around the file descriptor this big pit went, the more digging deeper, what system File table, Memory index node, VFS and so on all of a sudden out, and I have not so much energy to fix all, so can only shield some of the

Virtual machine under Linux set up and host each other PING PassFor some reason: the picture of this document did not get up, if you have the need to leave a message ohLab Environment:VMware Workstation 9.0Red Hat 5.4Host: The computer on which the

There are many performance analysis tools on Linux, and a system performance expert, Brendan D Gregg, was found on Weibo, and a talk and slideshow on Linux performance was released at the recent LinuxCon NA 2014 conference. Compared with last year,

CatTail-fLog file description1 /var/log/message and error log after system startup is one of the most commonly used logs in red Hat Linux 2 /var/ log/Secure Security-related log information 3 /var/log/maillog Message-related log information 4 /

If your iptables basic knowledge is not yet known, it is recommended to take a look first.Start configurationLet's configure a firewall for the filter table.(1) Check the setting of this institution in Iptables[Email protected] ~]# iptables-l-NChain

A. requirements Background1. Application software Research and development industry wide rangeApplication software is to meet the needs of users in different areas, different problems of the application of software, mainly include: Office software,

Description of UseThe time command is often used to measure the runtime of a command, noting that it is not used to display and modify system time (this is what the Date command did). But today, by looking at the man page of the time command, I

Git branch management Outline: 1. Preface 2. Create a branch 3. Switch Branch 4. merge branches (fast merge) 5. Delete Branch 6. Branch merge conflicts 7. Merge Branch (Common merge) 8. Branch Management Policy 9. development collaboration among

Case commands in shell in Linux (regular break, unconditional continuation, and conditional continuation) In linux, the case name in shell is similar to the switch in C/C ++, but the case in shell is more powerful and complex. 1. The power mainly

How to log on to FTP using vsftpd on centos 7 with multiple hosts 1) yum install vsftpd 2) mkdir-p/var/virtual/zbphp.com/?public_html,logs,backup} 3) useradd zbphp.com-d/var/virtual/zbphp.com 4) configure the vsftpd configuration file/etc/vsftpd.

Use rsyslog to audit Linux Users Rsyslog is part of the standard Linux system. It can write logs in real time and selectively Send Logs to remote log servers. The dependency on. bash_history or script to audit the commands executed by the user is

Cacti monitors Redis implementation process Cacti is a set of graphic analysis tools for network traffic monitoring developed based on PHP, MySQL, SNMP, and RRDTool. It is widely used in server O & M monitoring. Cacti provides plug-in management. As

The root Account of the vsftp server cannot be used for ftp logon. By default, vsftp does not allow root users to log on. you can modify the limits to solve this problem. First, find the vsftp configuration directory. [Root @ localhost vsftpd] # pwd