how to install openssl

Install Openvpn in CentOS Principle: The core technology of OpenVpn is virtual Nic, followed by SSL protocol implementation. Here we will introduce the virtual nic and its Working Mechanism in OpenVpn: A virtual Nic is a driver software implemented

Install and update libraries using external devices (optical drives) on linux1. Mount the optical drive (the directory does not exist, create)Mount-t auto/dev/cdrom/mnt/cdrom2. Modify the index file to read the local file.Vi/etc/yum. repos. d/CentOS-

Sudo apt-get install node-lessSudo apt-get install npmSudo npm install-g less-plugin-clean-css/Usr/lib/node_modules/npmconf requires inherits @'~ 2.0.0 & prime; but will loadBefore performing the following operations, back up the inherits @ 2 folder

article steel to:1. Understanding Mosquitto Server2, build Mosquitto server in Liunx3. Set Mosquitto clusterI. Introduction of MosquittoAn open-source message agent software that implements the messaging push protocol MQTT v3.1, which provides

article steel to:1. Understanding Mosquitto Server2, build Mosquitto server in Liunx3. Set Mosquitto clusterI. Introduction of MosquittoAn open-source message agent software that implements the messaging push protocol MQTT v3.1, which provides

When curl is installed by default, only the HTTP protocol is supported and the HTTPS protocol is not supported.You can first use curl-v to see which protocols are currently supported by Curl:[Email protected]/]# curl-vCurl 7.19.4

Here, insert a bar of encryption, using the OpenSSL library for encryption.Using MD5 encryptionLet's take a string as an example, create a new file filename.txt, write hello in the file, and then use the command md5sum filename.txt to calculate the

First, the preparatory work:Yum Install Zlib-develYum Install Openssl-develSecond, installation python3.5wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgzTAR-ZXVF python-3.5.3.tgzCD

The Django site uses Django_cas to access SSO (Single sign-on system), logs on after configuration is complete, and throws "Urlopen Error unknown URL Type:https" exception. Source discovery is python the built-in urllib module does not support the

This paper takes python2.7 as an example1. Download the Python installation packageOfficial website: https://www.python.org/downloads/2 Unzip the installation package, the command is as follows1 tar -zxvf python-2.7. tgz.3. Extract directory to

First method one, download unzipwget http://mirrors.hust.edu.cn/apache//httpd/httpd-2.4.29.tar.gzwget https://mirrors.tuna.tsinghua.edu.cn/apache//apr/apr-1.6.3.tar.gzwget https://mirrors.tuna.tsinghua.edu.cn/apache//apr/apr-util-1.6.1.tar.gztar

Pre-Installation Preparation workGCC Compiler-Program code compilation Tool!First, verify that your server environment has GCC installed by doing the following:#gccIf it appears: Gcc:no input files proves that the GCC build tool has been

installation package:nginx-1.8.0.tar.gzMount Windows DiskMount-t cifs-o username=xx,passwd=yyyy//IP address/share/mntUnzip the Nginx bag to/usr/src/sudo tar-zxf nginx-1.8.0.tar.gz-c/usr/src/Create nginx users and GroupsCat/etc/groupsudo groupadd–g 11

First, IntroductionWhat is 1.1 Nginx?Nginx is a lightweight Web server, but also a lightweight reverse proxy serverWhat 1.2 nginx can doA. Direct support for rails and PHP programsb, as an HTTP reverse proxy serverC, as a load balancer serverD, as

Because I am not very understanding of Linux, so the installation process from the Internet to find some information integration, only after the deployment of success, now the steps to recordDeployment installation Nainx Environment: pcre (role

Linux Installing the Paramiko module on the system requires Python to be more than 2.7, so install the python2.7 before installing the module (the installation process is omitted here)When the installation of Setuptools suddenly

One, Python installation1.: https://www.python.org/downloads/release/python-365/　　2. Linux system comes with Python2.7, if need to install 3.6 download Compress package python-3.6.5.tgz after compiling:(1) Install the required dependency module

Method One:1, wget http://subversion.tigris.org/downloads/subversion-1.6.1.tar.gz2, wget http://subversion.tigris.org/downloads/subversion-deps-1.6.1.tar.gz[or directly upload to the Baidu cloud of these two files]3.Tar zxvf

The basic use of bind has been introduced before. An entry-level approach to bind is available at: http://www.cnblogs.com/anpengapple/p/5877661.html Simple Tutorial Series, this article only talk about bind installation.This source code installation

1th. HTTPS Network security Access Service 1.1 issues related to network security ①. Network security issues-data confidentiality issuesTransmitted data may be visible to third parties at all times②. Network security issues-data