I've successfully installed SCRT in a RHEL 7.3 server (without a GUI desktop). I can run X11 apps without any issues, except for SCRT. Two issues:
The first is a missing environment variable (which I was able to overcome):
[root@server ~]# SecureCRT
xkbcommon: ERROR: failed to add default include path /usr/share/X11/xkb
Qt: Failed to create XKB context!
Use QT_XKB_CONFIG_ROOT environmental variable to provide an additional search path, add ':' as separator to provide several search paths and/or make sure that XKB configuration data directory contains recent enough contents, to update please see http://cgit.freedesktop.org/xkeyboard-config/ .
[root@server ~]# export QT_XKB_CONFIG_ROOT=/usr/share/X11/xkb
[root@server ~]# SecureCRT
The second has to do with the X11 fonts not appearing:
Any suggestions on both issues? Thanks!