Hello, John!
On my first server:
/usr/local/directadmin/data/skins/enhanced/lang/en/lf_standard.html
set LANG_ENCODING=iso-8859-1, but cyrillic symbols is correctly visible.
On my second server:
/usr/local/directadmin/data/skins/enhanced/lang/en/lf_standard.html
set LANG_ENCODING=iso-8859-1 and cyrillic symbols is not correctly visible.
I set LANG_ENCODING=windows-1251 and restart directadmin, but cyrillic symbols is not correctly visible.