Improve this question. Given the possibility of the answer being a satellite, I worry that the answer is going to be something confusing to do with relativity. Helios-B seems to have made it to 0. Space hardware often resets and goes into a safe mode. Not really about "longest", but there are some fun stories in the comments: hardware. Show 10 more comments. Active Oldest Votes. The question is tricky in a fundamental way.
Not often nowadays, where everyone got has their own machine using services on remote servers - making one of our most favoured benchmark values rather useless to real life : Bottom line: The question sounds cool, but doesn't work out in this case.
Improve this answer. Toby Speight 1, 10 10 silver badges 24 24 bronze badges. Raffzahn Raffzahn k 18 18 gold badges silver badges bronze badges. Naa, they go down. Especially in the old days systems had daily downtimes for backup and disk reorganization. More important, these systems have been replaced with new hardware and extended software dozends of times since the s.
So while the core software may still have the same structure, it hasn't been running couninous in any definable way. Embedded systems don't work that way, at least not most of them. Even with non embedded systems, uptime means different things to different people. There are mainframes that allegedly have uptimes measured in months or years but I think that usually refers to the operating system: in such cases they might still take the application off line for backups etc.
My first paid work was on a system running on Unisys large computer architecture. Theoretically, it could run forever - even backups were done on line, but the application was so buggy, if it went a week without crashing we were doing well.
JeremyP I don't see any confusion Dairy Beverages Ice cream Prepared food Cheese and whey. Related articles. Serial cooling system cuts water and steam consumption. Related articles on Processing insights. NPM includes fault, performance, and availability monitoring as well as hop-by-hop network path analysis to help ensure your business services are being delivered without interruption.
The tool also includes cross-stack network data correlation services designed to help you get to the root cause of downtime quickly. With NPM, you can drag and drop network performance metrics onto a shared timeline, so you can see an immediate visual correlation of the data from across your network.
NPM goes even further when it comes to data correlation. The tool also lets you automatically discover and map devices from across your network, while collecting and correlating performance metrics, wireless coverage, and link utilization, so you can clearly see everything occurring on your network. This visibility means you can troubleshoot outages and other issues capable of causing network downtime before they impact your network and your users. The NetPath feature lets you view traffic, configuration, and performance details of your network devices and applications in cloud, on-prem, or hybrid environments.
Like other SolarWinds offerings, NPM comes with high-quality, intuitive dashboards and automated intelligent alerting, capacity forecasting, and reporting designed to help you prevent network downtime. NPM offers a fully-functional free day trial. A PRTG sensor is a basic monitoring element, which might monitor, for example, the space available on a disk drive or the CPU load of a server. The benefit of this model is PRTG can function as a free uptime monitoring tool, provided you use fewer than sensors.
You can choose whichever sensors you want, which means PRTG can be entirely tailored to your specific needs. Moreover, if you want to expand on your up down monitoring solution to create a more comprehensive, one-stop monitoring tool, PRTG Network Monitor allows you to do so.
It serves as an all-in-one solution if you so choose, offering jFlow monitoring, firewall monitoring, IP monitoring, IP SLA monitoring, jitter monitoring, packet sniffing, and much more. Another advantage of PRTG Network Monitor is it has a customizable notification system, which can alert you via text, push notification, or email when anything goes wrong. For this reason, PRTG is not always cost-effective.
It also lets you perform synthetic web monitoring from a range of ISP networks, ensuring your website users are uninterrupted and maximum uptime is achieved. You can even receive notifications directly to your mobile phone when a problem is identified.
Site24x7 gives you insight into website response time, including DNS time, time to first byte, connection time, SSL handshake time, download time, and much more. Still, I find Site24x7 could be more user-friendly and its range of functionality expanded upon. You can sign up for a day free trial here.
Its powerful API conducts automatic agent installation, and the program can be integrated with over systems and services. The best thing about this program is its user interface, which makes uptime monitoring surprisingly engaging. Another benefit is Server Density is part of StackPath, a web services platform for speed, scale, and security. This means using Server Density affords you the opportunity to expand your up down monitoring solution into a wider IT monitoring and management strategy, through a single unified platform.
Though the dashboard is super dynamic and facilitates at-a-glance visibility of your systems, learning to navigate it and take full advantage of its features can take time. A day free trial is available, with no credit card details required. It offers real-time network monitoring with more than 2, built-in network performance monitors covering latency, errors and discards, speed, packet loss, and more.
In addition, it provides WAN link monitoring capabilities allowing you to view hop-by-hop performance, to facilitate rapid root cause identification. OpManager gives users a comprehensive SNMP monitoring experience designed to use automatic network discovery to keep itself up to date. It can discover up to 15, interfaces per minute, which is indicative of a seriously powerful program. OpManager employs multi-level thresholds, giving you the opportunity to narrow down and specify your alerts, which will notify you instantly if a violation occurs.
My only real issue with OpManager is navigating it and locating the various utilities can be complicated and time-consuming. You can schedule a demo if you want to know more. This tool not only assists you with reducing downtime, but also detects network incidents and monitors the overall health of your whole network. Nagios XI monitors all mission-critical infrastructure components, including operating systems, applications, services, system metrics, network infrastructure, and network protocols.
There are hundreds of third-party add-ons available, meaning you can monitor almost all in-house services, systems, and applications. This flexibility is the greatest advantage of Nagios XI. Layout, design, and preferences are customizable on a per-user basis, offering team members maximum flexibility. The program also offers multi-tenant capabilities, so the web interface can be accessed by stakeholders. To help you get set up, Nagios XI offers both a remote assist and a quick-start module, which can save you much time.
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