If you feel that your font size is too small, you can change the font size by issuing the command

% ssh -X userid@remoteserver

If you are using xfce4, you can xfc4-settings-manager to change the font size settings by typing on the command line

% xfce4-settings-manager

You will see something like this. Click “Settings Others” under Others Category

Look for xsettings > “Sans 12”