Palloy Posted April 24, 2017 Posted April 24, 2017 OrangePi Zero (512 MB) Power from 5V 2A supply, connection via Ethernet. Armbian_5.25_Orangepizero_Ubuntu_xenial_default_3.4.113 I am not strong on CLI so I have installed "lubuntu-desktop" and "gufw" and set them up. I also have NoMachine's Remote Desktop server installed, to share the Zero's virtual screen with my LAN. The project is to assess the Zero's ability to run a low volume mail server. So I have used the iRedMail script to install and set up the components of the mail server. It seems to be working - I have received the standard opening 4 emails OK. The problem lies with connecting to the Zero to find out what it's doing. After a reboot, when there is no user GUI session, and no Remote Desktop connection, I can sometimes start an SSH connection, and the machine state report says about 50% of memory is being used, but often it just times out. I can sometimes start a Remote Desktop connection, but often it just times out. If i start an RD connection successfully and then start a SSH connection, it reports 83% of memory being used, and the GUI seems to freeze at the least provocation for at least a minute, with the RD and SSH connections dropping out and in. I get the impression the Zero is page-thrashing with the memory load of it all, yet $ sudo swapon --summary says it is only using 5% of 127 MB. I need to investigate, but I can't connect to it because it is too busy (I think). Any suggestions?
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