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A detailed explanation of dynamic DNS service configuration method under Linux system

In network management, the management of DNS services is a fundamental task. With the expansion of the user scale, it is not easy to manually modify the DNS zone database files frequently. The research on Dynamic DNS (DDNS) has gradually aroused

The process of implementing IPSec VPN based on routers

Many people ask me how to implement IPSec VPN technology, and I've done a case to show you how to configure a router-based IPSec VPN. Due to work needs, the company's Nanjing office and the Shanghai office to establish a VPN connection. Nanjing

Ways to write authentication modules for Nginx servers using LUA

This article mainly introduces the method of using LUA to write the authentication module of the Nginx server, such as the popular social application access and other functions, the need of friends can refer to the Over the past two days, I have

Safety Essentials of two-layer switch

With the popularization and deepening of the network application, the requirement of the two-layer switch is not only limited to the data forwarding performance, service quality (QoS) and so on, the network security idea is becoming the important

SUN Solaris Cryptographic Framework cipher System

Claiming to be a Solaris system administrator, you should understand the Solaris Cryptography system: The Solaris OS cryptographic Framework (SCF) cryptographic system provides users with application and kernel-module encryption services in a

Pix Station to site IPSECVPN configuration

Prerequisite: The data can be communicated normally before the channel is encrypted. STEP1: Allow IPSec data flow to come in from the PIX outer port Pix (config) #access-list out_in permit any host 222.254.240.193 Pix (config) #access-list out_in

Six safety tips for two-tier switches

With the popularization and deepening of the network application, the requirement of the two-layer switch is not only limited to the data forwarding performance, service quality (QoS) and so on, the network security idea is becoming the important

Java encryption Technology (i)

Encryption and decryption, used to be a major component of my graduation design. After working for many years back then that encryption, decryption algorithm, it is too simple. To come to the point, we mainly describe Java has implemented some

A list of differences from Beta2 to RTM

Just finished downloading RC3 This may be useful to everyone. To visit: http://go.microsoft.com/fwlink/?LinkId=4374 http://go.microsoft.com/fwlink/?LinkId=4372 Good luck! Change List:beta 2 to build RTM The following document contains a list of

Configuring IBM NAS version 1.4.0.7 for AIX using a Non-default encryption type

Introduction: This article explains in detail how to enable and use Non-default encryption types such as "Aes128-cts" in the Kerberos settings (ibm®network authentication Service). Also explains why each step is performed. This content helps the

What does the Aliyun API call public parameters

Public parameters Public Request parameters A common request parameter is a request parameter that each interface needs to use. Whether the name type must describe FormatString returns the type of value that supports JSON and XML. The default is

HMAC File Checker based on SHA-256

HMAC is the hash function with key, and the message Identification code (MAC) generated by it can be used to authenticate the message. Here I make a software that verifies the legality of a file. Let me briefly introduce the background knowledge of

Linux under SSH remote Connection service Slow solution

1. The applicable order and plan are as follows: Remote connection and Execute command Ssh-p22 root@10.0.0.19 Ssh-p22 Root@10.0.0.19/sbin/ifconfig "Remote copy: Push and Pull" Scp-p22-r-p/etc root@10.0.0.19:/tmp/ Scp-p22-r-P

asp.net 1.1 no Cookie SessionID rewrite

Asp.net|cookie|session The browser's session is identified by using a unique identifier stored in the SessionID property. The session ID enables the ASP.net application to associate a particular browser with the session data and information

IPSec configuration between routers and Cisco firewalls

This document describes the IPSec configuration between the router and the Cisco firewall. The traffic between the headquarters and the branch office uses the private IP address, when the branch's local area network user accesses the Internet, needs

What is the Aliyun calling API signature mechanism

  Signature mechanism The ECS service authenticates each access request, so it is necessary to include the signature (Signature) information in the request, regardless of whether the request is submitted using the HTTP or HTTPS protocol. ECS

A detailed explanation of dynamic DNS service configuration method under Linux

In network management, the management of DNS services is a fundamental task. With the expansion of the user scale, it is not easy to manually modify the DNS zone database files frequently. The research on Dynamic DNS (DDNS) has gradually aroused

Playing snake in the memory of the use of Python to realize the fast payment interface

Now many of these fast-pay channels, easy to support the channel is very comprehensive, just recently need to integrate the payment channel to the platform, so write a paste to record, by the way despise the domestic payment platform, API support

Design and implementation scheme of secure login system

Safety | design For WEB applications, it is important to secure logins. But most WEB systems are sending plaintext when they send a login password, so it's easy for intruders to hear passwords. Of course, SSL is a good way to implement secure

IPSec for network security (continued Cisco device implementation)

Case topology Map Cisco (3640) realizes Step 1: The basic configuration of a router A (config) #do Sho run Building configuration ... Current configuration:1410 bytes ! Version 12.4 Service Timestamps Debug DateTime msec Service

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