File Transfer Protocol (FTP) is a standard network protocol used to transfer files from one host or to another host over a TCP-based network, such as the Internet according to Wikipedia. FTP Servers serve downloads of any company.
FTP Server serving downloads must be monitored at regular intervals. The server can come down at anytime due to various reasons like hardware or software failure. If the server is monitored for failures, the user can take corrective action immediately. This FTP server testing tool offered by the company checks your website or server at regular intervals specified by you and sends you an email, SMS even better a Twitter alert or a voice phone call as soon as it detects that your site is down. This can enhance the reliability of the organization.
Once a hostname is provided, the tool checks details like Name servers reachable, Valid DNS records, Reverse DNS, FTP server reachable, valid server response and Anonymous login blocked. Users can optionally subscribe to fail alerts for free. The FTP server is then monitored continuously checking once a day. Multiple monitoring locations are also supported providing added reliability of the tool.
Let us see the tests performed by the tool. The tool tries to look up name servers for the given server. If successful, it means visitors can reach your server using the host name. Once the tool discovers the name servers, it then queries the primary name server for DNS records and checks for correct values. The tool also checks reverse DNS for the server. Ideally, reverse DNS should match the host name of the server. The tool tries to connect to the server. If successful, it means the firewall allows traffic and an FTP server is running. Once the tool is connected to the server, it checks for valid response from the server. If successful, it means the FTP server is running and accepting download requests.
You may be hosting sensitive documents on the FTP server for your employees only. If the server allows anonymous login, your confidential data may be compromised. Furthermore, it may allow malicious scripts to be uploaded causing security issues for the whole website. If this test fails, then steps should be taken to disable the anonymous login functionality.
Pricing of the monitoring toll can be found here.