Linux network client tools

ping command Send echo request of ICMP Protocol to target host Common options: Send ICMP:-I INTERFACE from the specified local interface There are multiple interfaces (network cards) in this machine. You can choose which interface to send from: - i (capital i) The interface enp0s3 is the local intranet ip; the interface enp0s8 is the nat ip a ...

Posted on Wed, 19 Feb 2020 22:44:43 -0500 by srikanth03565

linux Enterprise battle - varnish

Directory header 1. What is varnish? 2. http protocol 3.varnish experiment 1. What is varnish? varnish is a reverse http proxy, sometimes referred to as the http accelerator or web accelerator. varnish stores files or file fragments in memory so that they can be provided quickly. varnish is es ...

Posted on Wed, 19 Feb 2020 05:53:58 -0500 by mjm

Regular expression and grep instruction in Shell programming

#In fact, regular expressions complete data filtering, reject the data defined by the unsatisfied regular expressions, and the rest data matching the regular expressions #Metacharacters: shell gives them meaning beyond the literal meaning #To master the basic elements of regular expressions is main ...

Posted on Fri, 14 Feb 2020 02:17:37 -0500 by fatal

Regular expression: necessary for form validation processing

The common JavaScript regular expressions are collected and sorted out, which is necessary for form validation processing. 1 regular user name //User name regular, 4 to 16 digits (letters, numbers, underscores, minus signs) var uPattern = /^[a-zA-Z0-9_-]{4,16}$/; //Output true console.log(uPattern.test("aim1")); 2 cipher streng ...

Posted on Thu, 13 Feb 2020 13:30:56 -0500 by greenba

Application of linux basic entry system services systemctl and xinted

9. System Services 9.1 System Services Computers can be understood as a place such as Zhongguancun Street System Services can be understood as barber shops, restaurants, shopping malls and so on, each of which is a system service to provide customers with different content services Service: A program that resides in memory and provides some sys ...

Posted on Mon, 10 Feb 2020 12:45:46 -0500 by mohamdally

50 Linux Basic Operations Commands Must Be Mastered

Explain: Based on the author's usage in peacetime and some other reference materials, the following 50 basic Linux commands that must be mastered are carefully sorted out. Command: 1. ssh Log on to remote host $ ssh -l jsmith remotehost.example.com Debugging ssh client $ ssh -v -l jsmith remotehost.example.com Show ssh client version $ ssh ...

Posted on Mon, 03 Feb 2020 11:43:59 -0500 by mgason

Hongsoft Linux x64 development environment deployment (centos6-glibc ﹣ 2.18 + glibccxx ﹣ 3.4.20 + GCC ﹣ 4.8.2 upgrade)

If there are errors in the article, please leave a comment and point out, thank you!! Because the company needs to use hongsoft's API in Linux system recently, it needs to upgrade the system according to the configuration required by hongsoft Configuration required by hongsoft: Library dependent GLIB ...

Posted on Mon, 27 Jan 2020 04:28:13 -0500 by ajdegans

ubuntu agent configuration

set DNS sudo su echo "nameserver 172.26.61.250" > /etc/resolvconf/resolv.conf.d/base echo "nameserver 172.26.61.249" >> /etc/resolvconf/resolv.conf.d/base echo "nameserver 172.26.61.250" > /etc/resolv.conf echo "nameserver 172.26.61.249" >> /etc/resolv.conf Setting agent #Current user agent cat <&l ...

Posted on Wed, 22 Jan 2020 11:40:46 -0500 by ScoTi

Implementation of FTP client upload and download module with C language

FTP client upload and download module 1. Functions realized: a. Upload local file to FTP server b. Download files from ftp server to client c. Upload the folder (subfolder upload is not supported) to the tfp server, create a new directory and delete the directory 2. Compilation platform: Linux (none) 4. ...

Posted on Mon, 20 Jan 2020 09:20:07 -0500 by joshmaker

How to install GCC 7.3.0 from CentOS 7.4

1, Environment: centos7.4 system server based on arm architecture 2. View the current version of gcc: gcc - v [root@aarch64vm-centos74-011 ~]# gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/aarch64-redhat-linux/4.8.5/lto-wrapper Target: aarch64-redhat-linux Configured with: ../configure --pr ...

Posted on Sun, 05 Jan 2020 11:59:32 -0500 by daniish