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Almost all enterprises have paid more attention to network security. They have successively purchased firewalls and other devices to block security factors from the Internet. However, Intranet attacks and intrusions are still rampant. Facts have proved that the company's internal insecurity is far more terrible than the external harm. Most enterprises pay attention to improving the border security of enterprise networks, but do not mention their inves
[Post] Six secrets of Intranet Security Post by: 2009-8-18 12:20:00 The development of the information industry has dramatically changed people's lives. However, it has also laid the groundwork for many security risks: data loss, information leakage, worms, and network abuse. Data shows that 70% of enterprise users in China are at a "high risk" level, and the annual economic losses caused by network leaks reach tens of billions.
BT Operation Principle Analysis and Intranet speed-up method (transfer) Because Intranet users cannot provide an external port, they cannot act as servers. however, when using BT, we found that it could allow Intranet users to send messages. As a programmer, we couldn't help downloading its source code for analysis (to see it, I also specifically wrote Python :})
(This article was previously reproduced on the Internet and has been modified. I will repeat it after my operations) In the past, I installed a dual Nic on my computer (not a server) to facilitate the test. The dual Nic accesses two different networks but can access the Internet. Recently, in order to build and test a VPN, I connected one of the NICS to a small Intranet (that is, they cannot access the internet). Now I have a problem: I can only acces
I. Overview of the Intranet/Internet platform , The dotted line below is the Internet, which provides Web Services, DB services, DNS services, exchange services, and so on; The above is the Intranet, which provides services similar to the Internet. This article focuses on the mail system under this structure. Ii. Architecture of email on the Intranet platf
Based on the current situation and problems of Intranet security, the technology alone cannot guarantee the competitiveness, or even the actual protection effect. These core causes of Intranet security problems can be solved only when the security management methods and security product management capabilities reach a certain level. In the face of increasingly complex application environments, administrator
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
setup, it is the IP[Email protected] ~]# netstat-rkernel IP Routing tabledestination Gateway genmask Flags MSS Window irtt Iface172.16.0.0*255.255.255.0U0 0 0Eth0link-local *255.255.0.0U0 0 0eth0default 172.16.0.1 0.0.0.0Ug0 0 0Eth0[[email protected]~]# Ping Www.baidu.comping:unknown host www.baidu.comThen set up the/etc/resolv.conf fileSet nameserver202.106. 0.20 202.106. 196.115Restart the NICCheck Again[Email protected] ~]# netstat-rkernel IP Routing
In the TCP/IP protocol, three IP address zones are reserved for private addresses with the following address ranges:10.0.0.0/8:10.0.0.0~10.255.255.255172.16.0.0/12:172.16.0.0~172.31.255.255192.168.0.0/16:192.168.0.0~192.168.255.255So, go directly to the code:Public Static BooleanInternalip(String IP) {byte[]Addr= Ipaddressutil.textToNumericFormatV4(IP);returnInternalip(Addr);}Public Static BooleanInternalip(byte[] addr) {Final byteB0= addr[0];Final byteB1= addr[1]; //10.X.X.X/8 Final bytes
Import re def legit_ip (_ip): Compile_ip = Re.compile (' ^ (25[0-5]|2[0-4]\d|[ 01]?\d\d?) \.) {3} (25[0-5]|2[0-4]\d| [01]?\d\d?] $ ') if Compile_ip.match (_ip): return True Else: return False def ip_intr_extr (h UANGGR): Intr = [10,172,192] Intranet_ips = [] Extranet_ips = [] for I in Huanggr: For II in INTR: _ip = Re.match (R '%s.* '% (ii), I) if _ip: Intranet_ips.ap Pend (_ip.group ()) Extranet_ips = List (set (HUANGGR)-set (intranet_ips)) return intranet_ips,extranet
For the intranet computer is able to access through the router, because the router assigned an IP address, so that the computer has an identity, if the router can not be assigned to the computer IP situation, then we have no way to the Internet. First, the emergence of IP can not be assigned to the phenomenon is most of the client can not log in, can not get IP after login or very slow, in the operating system command prompt in the use of Network com
The first step is to increase the external network segmentAfter opening vitualbox, press the Admin menu, click on Host network Manager, 1 shown. Click Create to create the next network host.Figure 1Then, turn off the virtual machine, the virtual machine settings, locate the Network tab, and then click on the Network 2 Sub-tab, connect as: Host only (host-only) network, Mixed mode is selected to allow all, 2 is shown.OK, after saving, after starting, you can see the ifconfig in the external netwo
gingko--Baidu Intranet for data distribution Peer-to-peer transmission toolGingko currently used in Baidu internal more than 100 product lines of data distribution, configuration updates, module deployment, dictionary transfer and other scenarios. The company's product line daily use Gingko for 1600w data download operations, download the total amount of data in 700tb+, covering 2w+ machine. At the same time, currently able to support within 30 minute
This article describes the Java to determine whether the IP address of the intranet IP or public network IP method. Share to everyone for your reference. The specific analysis is as follows: In the TCP/IP protocol, three IP address areas are reserved for private addresses, and their addresses range as follows: 10.0.0.0/8:10.0.0.0~10.255.255.255172.16.0.0/12:172.16.0.0~172.31.255.255192.168.0.0/16:192.168.0.0~192.168.255.255 So, go directly to the c
IIS Build Intranet complete manual (iii) Third, FrontPage 98 Web site upload in the FrontPage 98 Web site FTP to NT Server in the article is mainly about setting up an FTP server in IIS and how to upload in FrontPage, here, we add to it, we will also introduce how to pass the Ace FTP to upload the homepage. First, you must create an account number for each user and set a password for them to upload and update their personal homepage. The steps are as
The experimental topology diagram. Extranet access to corporate intranet files via VPN VPN in the virtual private network clients use a specific tunnel protocol, with the virtual private network server to establish a connection, virtual private network can help remote users easy access to the company's files trusted secure connection, and ensure data transmission. Advantage 1: Reduce costs Advantage 2: Reliable transmission data Advantage 3: Fl
under control Panel.This is all OK, finally realized the invasion of a roommate computer's great eye (CAN) Mark (Nian), and so he woke up let him change the weak password it. PS: The first invasion (the Web does not count), record down to leave a memorial.Attach some information:Classic ipc$ invasion:http://www.xfocus.net/articles/200303/493.htmlSqlExec (report Poison, usable):http://down.51cto.com/data/85369This article is from the "Zero4eva" blog, make sure to keep this source http://zero4eva
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 Network Security has been paid more and more attention. Not only has the Internet gradually strengthened its defense technology against enterprise networks, but also has been developing Intranet security in China for four years. Users and the market constantly improve and expand their understanding of user security, and the Intranet security technology is also being re-recognized. The
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