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Network Enumeration
Network enumeration is a computing activity in which usernames and info on groups, shares, and services of networked computers are retrieved. It should not be confused with network mapping, which only retrieves information about which servers are connected to a specific network and what operating system runs on them. Network enumeration is the discovery of hosts or devices on a network. Network enumeration tends to use overt discovery protocols such as ICMP and SNMP to gather information. It may also scan various ports on remote hosts for looking for well known services in an attempt to further identify the function of a remote host. The next stage of enumeration is to fingerprint the operating system of the remote host. Software A network enumerator or network scanner is a computer program used to retrieve usernames and info on groups, shares, and services of networked computers. This type of program scans networks for vulnerabilities in the security of that network. If there i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Username
A user is a person who utilizes a computer or Computer network, network Service (systems architecture), service. A user often has a user account and is identified to the system by a username (or user name). Other terms for username include login name, screenname (or screen name), account name, nickname (or nick) and handle, which is derived from the identical citizens band radio term. Some software products provide services to other systems and have no direct end users. End user End users are the ultimate human users (also referred to as Operator (profession), operators) of a software product. The end user stands in contrast to users who support or maintain the product such as sysops, database administrators and computer technicians. The term is used to abstract and distinguish those who only use the software from the developers of the system, who enhance the software for end users. In user-centered design, it also distinguishes the software operator from the client who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zone Transfer
DNS zone transfer, also sometimes known by the inducing DNS query type AXFR, is a type of Domain Name System, DNS Database transaction, transaction. It is one of the many mechanisms available for administrators to distributed database, replicate DNS databases across a set of DNS servers. A zone transfer uses the Transmission Control Protocol (TCP) for transport, and takes the form of a client–server transaction. The client requesting a zone transfer may be a secondary server requesting data from a Domain Name System#Authoritative name server, primary server. The portion of the database that is replicated is a DNS zone, zone. Operation Zone transfer consists of a preamble, followed by the actual data transfer. The preamble comprises a lookup of the Start of Authority (SOA) resource record for the "zone apex", the node of the DNS namespace that is at the top of the "zone". The fields of this SOA resource record, in particular the "serial number", determine whether the actual data ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Service Scan
On computer networks, a service scan identifies the available network services by attempting to initiate many sessions to different applications with each device in a target group of devices. This is done by sending session initiation packets for many different applications to open ports on all of the devices specified in the target group of devices. This scan is done across a wide range of TCP, UDP (and other transport layer protocols if desired such as SCTP). A service scanner will identify each device it finds along with the services that it finds on the ports that it scans. Most user-based network services are intended to be found by users. As an example, a web service may be made available on TCP port 80 on a device. TCP/80 is the standard port for HTTP and users would be able to access the content of that web server, the website, by directing their web browsers to that device where the user would be able to view the home page of the website. However, a web service may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZMap (software)
ZMap is a free and open-source security scanner that was developed as a faster alternative to Nmap. ZMap was designed for information security research and can be used for both white hat and black hat purposes. The tool is able to discover vulnerabilities and their impact, and detect affected IoT devices. Using one gigabit per second of network bandwidth, ZMap can scan the entire IPv4 address space in 44 minutes on a single port. With a ten gigabit connection, ZMap scan can complete a scan in under five minutes. Operation ZMap iterates on techniques utilized by its predecessor, Nmap, by altering the scanning method in a few key areas. Nmap sends out individual signals to each IP address and waits for a reply. As replies return, Nmap compiles them into a database to keep track of responses, a process that slows down the scanning process. In contrast, ZMap uses cyclic multiplicative groups, which allows ZMap to scan the same space roughly 1,300 times faster than Nmap. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Security Administrator Tool For Analyzing Networks
Security Administrator Tool for Analyzing Networks (SATAN) was a free software vulnerability scanner for analyzing networked computers. SATAN captured the attention of a broad technical audience, appearing in ''PC Magazine'' and drawing threats from the United States Department of Justice. It featured a web interface, complete with forms to enter targets, tables to display results, and context-sensitive tutorials that appeared when a vulnerability had been found. Naming For those offended by the name SATAN, the software contained a special command called ''repent'', which rearranged the letters in the program's acronym from "SATAN" to "SANTA". Description The tool was developed by Dan Farmer and Wietse Venema. Neil Gaiman drew thartworkfor the SATAN documentation. SATAN was designed to help systems administrators automate the process of testing their systems for known vulnerabilities that can be exploited via the network. This was particularly useful for networked systems with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAINT (software)
SAINT (Security Administrator’s Integrated Network Tool) is computer software used for scanning computer networks for security vulnerabilities, and exploiting found vulnerabilities. SAINT Network Vulnerability Scanner The SAINT scanner screens every live system on a network for TCP and UDP services. For each service it finds running, it launches a set of probes designed to detect anything that could allow an attacker to gain unauthorized access, create a denial-of-service, or gain sensitive information about the network. SAINT provides support to the Security Content Automation Protocol (SCAP) specification as an Unauthenticated Vulnerability Scanner and Authenticated Vulnerability and Patch Scanner. SAINT is also an approved scanning vendor with the Payment Card Industry (PCI). The Four Steps of a SAINT Scan: * Step 1 – SAINT screens every live system on a network for TCP and UDP services. * Step 2 – For each service it finds running, it launches a set of probes designe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenVAS
OpenVAS (''Open Vulnerability Assessment System'', originally known as ''GNessUs'') is the scanner component of Greenbone Vulnerability Manager (GVM), a software framework of several services and tools offering vulnerability scanning and vulnerability management. All Greenbone Vulnerability Manager products are free software, and most components are licensed under the GNU General Public License (GPL). Plugins for Greenbone Vulnerability Manager are written in the Nessus Attack Scripting Language, NASL. History Greenbone Vulnerability Manager began under the name of OpenVAS, and before that the name GNessUs, as a fork of the previously open source Nessus scanning tool, after its developers Tenable Network Security changed it to a proprietary (closed source) license in October 2005. OpenVAS was originally proposed by pentesters at SecuritySpace, discussed with pentesters at Portcullis Computer Security and then announced by Tim Brown on Slashdot. Greenbone Vulnerability Mana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nessus (software)
Nessus is a proprietary vulnerability scanner developed by Tenable, Inc. History In 1998 Renaud Deraison created ''The Nessus Project'' as a free remote security scanner. On October 5 2005, with the release of Nessus 3, the project changed from the GNU Public License to a proprietary license. The Nessus 2 engine and some of the plugins are still using the GNU Public License, leading to forks based on Nessus like OpenVAS and Greenbone Sustainable Resilience. See also *Metasploit Project *OpenVAS *Security Administrator Tool for Analyzing Networks (SATAN) *SAINT (software) *Snort (software) *Wireshark Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education. Originally named Ethereal, the project was renamed Wireshark in May 2006 d ... References External links * Nessus 2.2.11 files and source codeNessus source codeup to 2.2.9 {{DEFAULTSORT:Nessus (Software) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nmap
Nmap (Network Mapper) is a network scanner created by Gordon Lyon (also known by his pseudonym ''Fyodor Vaskovich''). Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. Nmap provides a number of features for probing computer networks, including host discovery and service and operating system detection. These features are extensible by scripts that provide more advanced service detection, vulnerability detection, and other features. Nmap can adapt to network conditions including latency and congestion during a scan. Nmap started as a Linux utility and was ported to other systems including Windows, macOS, and BSD. It is most popular on Linux, followed by Windows. Features Nmap features include: * Host discovery – Identifying hosts on a network. For example, listing the hosts that respond to TCP and/or ICMP requests or have a particular port open. * Port scanning – Enumerating the open ports on target hosts. * V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metasploit Project
The Metasploit Project is a computer security project that provides information about security vulnerabilities and aids in penetration testing and IDS signature development. It is owned by Boston, Massachusetts-based security company Rapid7. Its best-known sub-project is the open-source Metasploit Framework, a tool for developing and executing exploit code against a remote target machine. Other important sub-projects include the Opcode Database, shellcode archive and related research. The Metasploit Project includes anti-forensic and evasion tools, some of which are built into the Metasploit Framework. Metasploit is pre-installed in the Kali Linux operating system. History Metasploit was created by H. D. Moore in 2003 as a portable network tool using Perl. By 2007, the Metasploit Framework had been completely rewritten in Ruby. On October 21, 2009, the Metasploit Project announced that it had been acquired by Rapid7, a security company that provides unified vulnerability ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearson PLC
Pearson plc is a British multinational corporation, multinational publishing and education company headquartered in London, England. It was founded as a construction business in the 1840s but switched to publishing in the 1920s.J. A. Spender, Spender, J. A., ''Weetman Pearson: First Viscount Cowdray'' (London: Cassell (publisher), Cassell and Company Limited, 1930). It is the largest education company and was once the largest book publisher in the world. In 2013 Pearson merged its Penguin Books with German conglomerate Bertelsmann. In 2015, the company announced a change to focus solely on education. Pearson plc owns one of the GCSE Examination boards in the United Kingdom, examining boards for the UK, Edexcel. Pearson has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. It has a secondary listing on the New York Stock Exchange in the form of American depositary receipts. History Construction business: 1844 to the 1920s The comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
InformIT
Pearson Education is a British-owned education publishing and assessment service to schools and corporations, as well for students directly. Pearson owns educational media brands including Addison–Wesley, Peachpit, Prentice Hall, eCollege, Longman, Scott Foresman, and others. Pearson is part of Pearson plc, which formerly owned the ''Financial Times''. It claims to have been formed in 1840, with the current incarnation of the company created when Pearson plc purchased the education division of Simon & Schuster (including Prentice Hall and Allyn & Bacon) from Viacom and merged it with its own education division, Addison-Wesley Longman, to form Pearson Education. Pearson Education was rebranded to Pearson in 2011 and split into an International and a North American division. Although Pearson generates approximately 60 percent of its sales in North America, it operates in more than 70 countries. Pearson International is headquartered in London, and maintains offices across Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
