intranet redesign

were opened.Consider port forwarding to log in to SSH.Three. Intranet SSH forwarding:Upload the tool to a host outside the network:Since the target host is Linux,-listen is followed by the-linux:The SSH client then remotely connects to the host's 3001 port, and the extranet host displays a connection:Then bounce ssh:Outside the network, you can see that the connection has been received:Soon, the SSH client also reacted, stating that the rebound SSH w

First, explain the concept of "intranet" and "Extranet": Intranet: That is to say the LAN, such as the school's local area network, the local area network each computer IP address in this local area network has the mutual opposite sex, is not repeatable. But the intranet IP in two LAN can have the same. Extranet: That is, the Internet, LAN through a server or a r

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

, and the financial report system could not handle statistics, all services were interrupted for about five hours, resulting in loss of material and reputation of the company. The final reason is that our company only has a simple access firewall at the internet exit. The company's website and email server are located in the external interface area of the firewall and use public IP addresses. Because the website is attacked and implanted with ARP spoofing Trojans, all office and business PC gate

Rogue DHCP server Intranet attack test Intranet penetration is usually Based on ARP attacks, but ARP attacks are too costly to the Intranet and are easy to detect. Today we are talking about DHCP-based attacks. DHCP-based attacks are easy to understand. First, hackers use their own hosts to forge a DHCP server by forging a Mac address and exhausting the IP addres

Rogue DHCP server Intranet attack test Intranet penetration is usually Based on ARP attacks, but ARP attacks are too costly to the Intranet and are easy to detect. Today we are talking about DHCP-based attacks. DHCP-based attacks are easy to understand. First, hackers use their own hosts to forge a DHCP server by forging a Mac address and exhausting the IP addre

Allows AWS virtual machines to access the company's intranet resources (SSH reverse proxy), and aws virtual machinesBackground Today, I want to upgrade AWS Virtual Machine to beta and perform some tests. Since the beta version is only available on the company's Intranet, I need to manually copy the upgraded files to the AWS VM. The original method is easy to understand: However, this is a problem because th

Web intranet penetration implementation based on HTTP/2 HTTP/2 introduces the binary frame separation layer to split requests and responses in HTTP/1.1 into finer-grained frames ), in this way, priority, traffic control, and Server Push are implemented. HTTP/2 can open multiple streams on a single TCP connection to achieve multiplexing; HTTP/2 uses a static dictionary, a dynamic dictionary, and a Heman encoding to compress the request/response header

Today, colleagues have a demand, hope that the Web server in the Nodejs of the corresponding site can support intranet access, and later found to modify the hostname attribute in Express for their own intranet IP can be. But the problem is that our machines are automatically acquired intranet IP, then this time the death of the hostname will not be able to use th

User features of Intranet Security Cases There are a large number of design documents, survey data and other value information that need to be protected with emphasis. In particular, the survey data has been included in the scope of national defense strategic information and needs to be protected with emphasis; The design documents submitted for the customer are relatively large, and the editing software of each professional department of the Design I

Getshell (root permission affects Intranet/database information leakage) caused by command execution vulnerability in a site of yisearch Technology) Rt Http: // 120.197.138.35/will jump to http://book.easou.com/ Jdwp command execution vulnerability in port 9999 Http: // 120.197.138.35: 8080/port resinYou can remotely deploy the shell using the resin path. Http: // 120.197.138.35: 8080/resin-doc/shell. jsp Easou.com Various database configuratio