Server Monitoring Software
Server monitoring software is designed to make sure that a server is active, healthy, and responding to requests appropriately.
PRTG Network Monitor is advanced server monitoring software which lets you check both basic server uptime and detailed usage statistics on all types of servers, including:
- web and application servers
- file servers / FTP servers
- mail servers
... and more other servers used in business
How In-Depth Should We Monitor Our Servers?
Server monitoring software generally starts with fairly minimalistic features and gets more as it gets more advanced (and expensive). For example, for a web server, a sequence of increasingly more sophisticated checks might be:
- Is the web server machine up and responding to ping?
- Does the web server respond on port 80?
- Does the web server report an HTTP 200 response code ("success") when accessing the home page on port 80?
- Does the web server respond with the proper content when we access a particular page on the server with known content?
All versions of PRTG Network Monitor, regardless of the price or license level, let you perform all of these checks.
Why Does Server Monitoring Need To Be That Complicated?
Briefly, there are ways for web servers to be perceived as down by users but as active and healthy by unsophisticated server monitoring software. This is typically catastrophic, because it will cause the sysadmins to not get messages alerting them that the server is down until users start to complain, often hours into an outage. For example, poorly configured servers or applications might report an HTTP 200 on the home page but the content might be "Database connection refused!", which will not endear your company to customers attempting to buy your product. (One can easily have such a result even if the database is being monitored separately: for example, if a firewall configuration change makes the database port inaccessible from the web server. The database will still be running and responding to requests, but the web server will be unable to reach it, resulting in a "silent" downtime. Trust us, we've seen even more amusing failure modes than this.)
This is why PRTG offers intelligent sensors which go beyond "Is the server up?" to answer the question you really care about: "Is the server working?"
Start Using PRTG For Server Monitoring
PRTG Network Monitor is available in two editions. The freeware edition supports 30 sensors, and is completely free of charge for both personal and commercial use. Need more sensors to monitor a larger IT infrastructure? See our commercial licenses here.
You can start using PRTG server monitoring software immediately: just download the fully-functional 30-day trial version now. Setup and installation are quick and easy, and you will have your first monitoring results in literally minutes.
More Than Just Server Monitoring Software
PRTG is much more than just an SNMP monitor: packet sniffing and NetFlow / sFlow support also allow for advanced bandwidth and network activity monitoring. The NetFlow analyzer capability is useful if you are using routers and switches by Cisco: these network devices provide detailed pre-aggregated traffic data which PRTG can read and display.
How Comprehensive Can Server Monitoring Be?
The PRTG server monitoring tool uses SNMP and WMI to check the availability of your servers, and monitors disk usage, CPU load, IP latency, the temperature in your server room and more. The software can also be used as a syslog server and SNMP Trap receiver: PRTG stores the log messages sent by managed devices and analyzes them, triggering alarms if necessary.