Apt Local source build (can be used for LAN Apt-get source or local source) This document describes the use of Apt-mirror software to build apt local source requirements: Intranet development environment for its specific reasons can not Sisu network, So we need the local intranet source to make it easy for developers to download and install software recommendations: Use a single disk to store source files o
Because the company in the computer room hosting server IP is not enough, but also for security considerations, so that a number of virtual nodes can not directly access the Internet, so I xenserver physical nodes through the use of iptables NAT function made a simple implementation
[Root@xenserver-cukxsegi ~]# sysctl net.ipv4.ip_forward=1 #开启转发[Root@xenserver-cukxsegi ~]# Echo ' net.ipv4.ip_forward=1 ' >>/etc/sysctl.conf #让重启不失效[Root@xenserver-cukxsegi ~]# iptables-p FORWARD DROP #将FORWARD链的策略
Reference Address: http://www.nat123.com/Pages_8_266.jspThe methods in this article are as follows:(1) Install and enable nat123 on the intranet, add mappings, and use other app types. Intranet address port is the LAN MSSQL address port, the network address port customization.(2) After the mapping succeeds, the external network access connection MSSQL uses the mapped extranet address domain name port. Note
A simple introduction of squid
Through Squid Proxy server to achieve intranet users to share the Internet, configure Squid cache and basic access control to accelerate and restrict access to Web services.
For web users, squid is a high-performance proxy caching server that speeds up the intranet browsing the Internet and increases the client's access hit rate. Squid not only supports HTTP protocol, but al
Objective:Sometimes we want to access the local area network SQL Server server, such as test environment database in the company intranet, back home or at the customer site to connect to the database in the intranetThe first step: if you can connect to the local area network database 192.168.150.129, remote also can connect itThe second step: Add a TCP port in the intranet pangolin, the IP of the local IP,
Relatively speaking, there is little information on the Internet, and few people write some detailed information about the Intranet penetration for the reference of their peers. Today, I am only going to give a general introduction to some Intranet knowledge.
First, under what circumstances will we meet the Intranet? If your goal is only limited to a small web, y
Enterprise Intranet security product selection Source: Network Author: Network Release Date: In recent years, security issues have become increasingly prominent in the internal network (terminal), and security events have frequently occurred. Data shows that manufacturing enterprises are also faced with problems such as data leakage, lack of confidentiality, and poor monitoring. How can we select a suitable Intran
stop spoofing, the target computer will not be able to access the network normally, resulting in user O M accidents.
To sum up, there are many problems with ARP spoofing blocking methods. Therefore, Intranet security products should use this method dialectically.
1. Avoid being single and adopt multiple blocking methods
The Intranet security risk management and audit system connects terminals to vswitches
A man's martial arts: the idea of Intranet penetration testing (2)
Web penetration (previous article)Http://www.bkjia.com/Article/201412/357403.htmlDifferent, Intranet penetration requires more randomness and breakthrough, and the situation is more complicated. When encountering obstacles, sometimes you can use different ideas to break through. In many cases, you can only stop here. Here are some of my summ
How to use Linux bots to penetrate a small Intranet
The shell method in the case is relatively simple. We only focus on the limited space, starting from obtaining permissions.Install BackdoorAfter entering the system, my RP was so lucky that it turned out to be the root permission...View passwd account informationDirectory tree structure:Because Intranet penetration is required and permissions may be lost a
Today to tell you how to use the port mapping, not through the Gateway Open intranet method.
First: The use of the premise
Need to have a public network of IP. If we now have a public network of ip:210.210.21.21
II: Tools to use
1.lcx.exe
2.vdic
Three: Method explanation
Method One: Use Lcx.exe to map.
(1) We will upload the Lcx.exe to the public network IP, in the public IP on the DOS environment in the implementation of Lcx–listen Port 1 Por
Guide
As we all know, SSH is a secure transport protocol, which is more used in connecting servers. But in addition to this function, its tunnel forwarding function is more attractive.
If the two intranet between the Linux server need to log in with each other, or need to access a port in the intranet, worry that there is no public network IP, you can use the method has Ngrok (https://ngrok.co
Intranet security management products must be intercepted with ARP Spoofing with caution. With the continuous popularity of Intranet security management products in the market, there are many product patterns with various ideas, but the trend of product homogeneity is obvious, in particular, for terminals to block illegal access to the Intranet, the method is gen
Push through multiple layers to prevent Intranet access failures In order to apply for a permanent examination site for intermediate and middle-level computers, the organization established a standard LAN machine room for students to conduct intermediate and middle-level training and examinations at no cost of RMB 100,000 last year; the local area network mainly includes 36 P4-level founder brand computers, two cascade Cisco-branded 10 M/M Adaptive
Port ing principle
To connect a computer on the Intranet to the Internet, port ing is required.Port ing is divided into dynamic and staticDynamic port ing:A computer in the Intranet will send packets to the NAT gateway to access xinlang. the packet header includes the IP address, port, and local IP address and port of the other party (I .e. xinlang network, the NAT gateway will replace the local IP address
Development, try to obtain the score information in the university teaching system. The educational administration system of our school can only be accessed through the Intranet (only Intranet IP addresses ). Is there any way to access the Intranet IP address from the Internet (server? I have an intranet machine on han
Environment Description:The router is assigned a dynamic public IP, and has router login administrative rights, and the Web server is deployed in the router's internal network. How to publish the intranet website to the extranet for public access?Solution:Intranet use nat123 dynamic Domain name resolution, real-time domain name fixed to the routing public IP, and then on the router to do site port mapping. When an extranet accesses a Web site, it uses
This is a creation in
Article, where the information may have evolved or changed.
Article keywords
Go/golang
Gopacket
Grab Bag
Pcap/libpcap
Arp
Nbns
MDNs
Manuf
Program
Description
This article for the go language itself is not too much to explain, want to spend more time on a few network protocol explanation, I hope this article on the plan or are using go for TCP/IP programming and grasping the package of friends to bring help.GitHub Address: Https://github.com/t
Bkjia.com integrated message: at present, network boundary security protection cannot effectively protect network security. Only border security and Intranet Security Management three-dimensional control is the way out.
Intranet security focuses on internal network users, application environments, application environment boundaries, and Intranet Communication Se
The nst bounce backdoor cannot be used for su interaction after connecting to nc. the following error is returned:Standard in must be a ttySolution:Python-c import pty; pty. spawn ("/bin/sh ")The shell can be used for su interaction.
Ps: Several noteworthy cases encountered in the recent penetration test, which are recorded as follows:
1. history is not recorded:Unset history histfile histsave histzone history histlog; export HISTFILE =/dev/null; export HISTSIZE = 0; export HISTFILESIZE = 0
2. h
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