ANSI can refer to the American National Standards Institute. The term also refers to a protocol for encoding data that many Unix-operating systems and telecommunications devices use, and a set of standards that govern how computers and other devices should display certain documents. In ethical hacking, the abbreviation may refer to text formatting standards used by Wireshark, which is a network traffic analyzer.
Configure ASA command-line interface (ASA) logins under Windows and Linux:
ANSI stands for the American National Standards Institute. It is a nonprofit organization that establishes voluntary standards across many industries, including security and cryptology. The organization was established as a non-profit organization by the Federal Trade Commission in 1941. The group was formed after World War II to consolidate existing standards that were created by various private organizations into one standard called the ANSI standards system. In addition to setting the standards for security and cryptography, the ANSI group also develops standards for electronic commerce and technical information.
Wireshark is an open-source network protocol analyzer that was developed by Gerald Combs in 1998. The first version of Wireshark was released in 1999. As of July 2013, the latest version is 1.8, and it runs on Windows, Linux, Mac OS X, FreeBSD, Solaris, QNX, and Maemo platforms as well as other operating systems using a Java virtual machine or applet wrappers such as WebStart or AppletViewer.
Wireshark allows a user to see details of a network conversation or packet, including the contents of the packets, protocol, and other information. This can help a user analyze or troubleshoot network performance problems. Wireshark performs deep inspection of hundreds of protocols, including UDP, TCP, IP, ICMPv4, IS-IS, and many more.
Key Points:
- Wireshark is used for network troubleshooting purposes; for example, if there is an issue sending data over the Internet using FTP that works fine in other applications such as Internet Explorer, the analyst can use Wireshark to analyze and diagnose the issue by capturing packets from the FTP session.
- Wireshark is usually used for the analysis of network traffic rather than for forensics. It can also be used in several other contexts, including wireless intrusion detection, diagnostic tools for troubleshooting equipment and networks, and Cryptanalysis.
- Wireshark runs on 32-bit Windows operating systems such as Windows 7, Windows 8, and Windows 10 and 32-bit versions of Linux such as Red Hat Enterprise Linux 5, CentOS 5, Fedora 15 or 16. Wireshark has been packaged with the Solaris Operating System since version 1.2 as well as Mac OS X 10 or later versions.
Countermeasures:
- Wireshark has been used to identify the presence of certain tools, such as the Network Stumbler tool or Back Orifice, or Cain and Abel. It is also used to see if a computer is infected with a rootkit or if a user is infected with a virus. A user can use Wireshark to show that there are open ports on the firewall that are open and what protocols are running on those ports.
- The ‘U’ protocol in Wireshark allows a user to write filters for traffic inspection. These filters can be used to capture only particular traffic such as ICMP packets from network devices, HTTP traffic from web servers, FTP sessions from file servers, VoIP conversations, etc.
- Wireshark is a tool that is used in the field of computer forensics and network monitoring. Wireshark is useful in network troubleshooting as well as in gathering evidence that could be used in a court of law, although it should not be considered a formal legal tool.
Conclusion:
The term “ANSI” may also refer to a set of communication standards created by the American National Standards Institute. In this context, ANSI refers to an encoding scheme for bitmap graphics in which each frame was broken into codes that could then be reassembled by the recipient of the message; it was one of the first types of error-correcting protocols developed for compressing data sent across networks with low bandwidth or high latency.