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Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. | The term network monitoring describes the use of a system that constantly monitors a computer network for slow or failing systems and that notifies the network administrator in case of outages via email, pager or other alarms. It is a subset of the functions involved in network management. Image File history File links Question_book-3. ...
A computer network is an interconnection of a group of computers. ...
The terms network administrator, network specialist and network analyst designate job positions of engineers involved in computer networks, the people who carry out network administration. ...
Network management refers to the maintenance and administration of large-scale computer networks and telecommunications networks at the top level. ...
Details While an intrusion detection system monitors a network for threats from the outside, a network monitoring system monitors the network for problems due to overloaded and/or crashed servers, network connections or other devices. An Intrusion Detection System or IDS is a software tool used to detect unauthorised access to a computer system or network. ...
For example, to determine the status of a webserver, monitoring software may periodically send an HTTP request to fetch a page; for email servers, a test message might be sent through SMTP and retrieved by IMAP or POP3. Hypertext Transfer Protocol (HTTP) is a communications protocol used to transfer or convey information on intranets and the World Wide Web. ...
E-mail, or email, is short for electronic mail and is a method of composing, sending, and receiving messages over electronic communication systems. ...
Simple Mail Transfer Protocol (SMTP) is the de facto standard for e-mail transmissions across the Internet. ...
The Internet Message Access Protocol (commonly known as IMAP or IMAP4, and previously called Internet Mail Access Protocol, Interactive Mail Access Protocol (RFC 1064), and Interim Mail Access Protocol[1]) is an application layer Internet protocol operating on port 143 that allows a local client to access e-mail on...
In computing, local e-mail clients use the Post Office Protocol version 3 (POP3), an application-layer Internet standard protocol, to retrieve e-mail from a remote server over a TCP/IP connection. ...
Commonly measured metrics are response time and availability (or uptime), although both consistency and reliability metrics are starting to gain popularity. The widespread addition of wan optimization devices is having an adverse effect on most network monitoring tools -- especially when it comes to measuring accurate end to end response time because they limit round trip visibility.[1] In telecommunication, response time is the time a system or functional unit takes to react to a given input. ...
In telecommunications and reliability theory, the term availability has the following meanings: 1. ...
Uptime is a measure of the time a computer system has been up and running. ...
WAN optimization products seek to accelerate a broad range of applications accessed by distributed enterprise users via eliminating redundant transmissions, staging data in local caches, compressing and prioritizing data, and streamlining chatty protocols (e. ...
In telecommunication, response time is the time a system or functional unit takes to react to a given input. ...
Status request failures, such as when a connection cannot be established, it times-out, or the document or message cannot be retrieved, usually produce an action from the monitoring system. These actions vary: an alarm may be sent out to the resident (SMS, email,...) sysadmin, automatic failover systems may be activated to remove the troubled server from duty until it can be repaired, etcetera. In telecommunication, the term time-out has the following meanings: A network parameter related to an enforced event designed to occur at the conclusion of a predetermined elapsed time. ...
SMS may refer to: Short message service, a form of text messaging on cell phones Sega Master System – an 8-bit video game console from the 1980s Seiner Majestät Schiff, His Majestys Ship in the German Kaiserliche Marine and the Austro-Hungarian Navy SMS (comics), a British comic...
The term system administrator (abbreviation: sysadmin) designates a job position of engineers involved in computer systems. ...
Monitoring the performance of a network uplink is also known as network traffic measurement, and more software is listed there. A computer network is a system for communication among two or more computers. ...
Look up uplink in Wiktionary, the free dictionary. ...
In computer networks, network traffic measurement is the process of measuring the amount and type of traffic on a particular network. ...
Various types of protocol Website monitoring service can check HTTP pages, HTTPS, SNMP, FTP, SMTP, POP3, IMAP, DNS, SSH, TELNET, SSL, TCP, ping and a range of other ports with great variety of check intervals from every 4 hours to every one minute. Typically, most website monitoring services test your server anywhere between once-per hour to once-per-minute. Hypertext Transfer Protocol (HTTP) is a communications protocol used to transfer or convey information on intranets and the World Wide Web. ...
https is a URI scheme used to indicate a secure HTTP connection. ...
The Simple Network Management Protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force. ...
This article is about the File Transfer Protocol standardised by the IETF. For other file transfer protocols, see File transfer protocol (disambiguation). ...
Simple Mail Transfer Protocol (SMTP) is the de facto standard for e-mail transmissions across the Internet. ...
In computing, local e-mail clients use the Post Office Protocol version 3 (POP3), an application-layer Internet standard protocol, to retrieve e-mail from a remote server over a TCP/IP connection. ...
The Internet Message Access Protocol (commonly known as IMAP or IMAP4, and previously called Internet Mail Access Protocol, Interactive Mail Access Protocol (RFC 1064), and Interim Mail Access Protocol[1]) is an application layer Internet protocol operating on port 143 that allows a local client to access e-mail on...
The Domain Name System (DNS) associates various sorts of information with domain names; most importantly, it serves as the phone book for the Internet by translating human-readable computer hostnames, e. ...
SSH redirects here. ...
For the packet switched network, see Telenet. ...
Secure Sockets Layer (SSL) and Transport Layer Security (TLS), its successor, are cryptographic protocols which provide secure communications on the Internet. ...
The Transmission Control Protocol (TCP) is one of the core protocols of the Internet protocol suite. ...
For other uses, see Ping (disambiguation). ...
Servers around the globe Website monitoring services usually have a number of servers around the globe - for example in America, Europe, Asia, Australia and other locations. By having multiple servers in different geographic locations, a monitoring service can determine if a Web server is available across different Networks worldwide. The more locations used, the more complete is the picture on website availability.
See also An Intrusion Detection System or IDS is a software tool used to detect unauthorised access to a computer system or network. ...
This is a partial list of network management systems. ...
In information technology, the myth of the nines is the idea that standard measurements of availability can be misleading. ...
In computer networks, network traffic measurement is the process of measuring the amount and type of traffic on a particular network. ...
A network monitoring interface card or NMIC is similar to a network card (NIC). ...
Website monitoring is the process of testing or tracking (monitoring) how end-users interact with a website or web application. ...
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