b) disadvantages:-requires some investment for hardware and monthly / yearly costs of the involved services, [ 11 ].-requires specialized knowledge in e. g.: Linux, DNS, PHP and others.-some software could be incompatible / unsupported with other in the VPS, [ 1 ]. Checks are required, see fig. 4;
Fig. 4 Hestia control panel- supported OS at the moment of writing of the paper
-requires time for maintenance / update / upgrade via SSH;-requires admin attention when update is available via Web, see fig. 5.
Fig. 5. Available update and the relevant notes for it
Regardless of the mentioned disadvantages, the application of nowadays’ possibilities of IT are a significant step ahead in the everyday work of the geodesist.
6. RESULTS FROM THE PING TESTS. ANALYSIS
An important topic to be discussed and analyzed is the speed( elapsed time) to access the server. In our case this is how fast the geodesist could access the necessary data from the cloud.
In this study the mobile app Ping was used, available for free in Play store. More information for ping command could be found at: [ 4 ] and [ 3 ]. Here, three servers were tested, located in Sofia, hosted by three different providers. In total four domains were studied for the elapsed time for access.
On fig. 6 are shown the graphical and numerical results of the speed test for domain N1. The maximal ping packet was N3 having time of 58.9 ms, while all other packets had almost with one and the same value – lower than 20 ms. If packet N3 was thrown away, here we could have a low overall ping value- less than 17.5 ms.
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