Here
This is a list of environment variables that I scrounged up years ago. I no longer have any idea where they came from, or if the pages I got them off of used copious amounts of vaseline to convince people like me, back then, that they mean something useful. Whatever. The real deal for this server, right now, is nearer to the bottom of this page. 

          SERVER_SOFTWARE   : Apache
          SERVER_NAME       : www.tomki.com
          SERVER_VERSION    : 
          SERVER_PROTOCOL   : HTTP/1.1
          SERVER_PORT       : 80
          GATEWAY_INTERFACE : CGI/1.1
          REQUEST_METHOD    : GET
          PATH_INFO         : 
          PATH_TRANSLATED   : 
          SCRIPT_NAME       : /cgi/env.cgi
          SCRIPT_FILENAME   : /custdata01/tomki/public_html/cgi/env.cgi
          DOCUMENT_ROOT     : /custdata01/tomki/public_html
          QUERY_STRING      : 
          REMOTE_HOST       : 
          REMOTE_ADDR       : 216.73.216.19
          REMOTE_USER       :  (shown only if script is in authenticated directory tree
          REMOTE_IDENT      : 
          AUTH_TYPE         : 
          CONTENT_TYPE      : 
          CONTENT_LENGTH    : 
          HTTP_ACCEPT       : */*
          HTTP_HOST       : www.tomki.com
          HTTP_USER_AGENT   : Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
          HTTP_REFERER      : 
          HTTP_COOKIE       : 
          HTTP_FORWARDED    : 
          HTTP_PROXY_CONNECTION     : 
          HTTP_HEADER       : 
          ANNOTATION_SERVER : 
          RESTART           : 
          STATUS            : 
          SEVERITY          : 
          P1                : 
          P2                : 
          P3                : 
          P4                : 
          P5                : 
          P6                : 
          P7                : 
          P8                : 
          TIME_YEAR         : 
          TIME_MON          : 
          TIME_DAY          : 
          TIME_HOUR         : 
          TIME_MIN          : 
          TIME_SEC          : 
          TIME_WDAY         : 
          TIME              : 

  VM-Specific? (2.1)
          X_AUTH_PRIVATE_INFO        : 
          X_AUTH_VERIFIED            : 
          X_PATH_TRANSLATED_OUTCOME  : 
          X_SCRIPT_NAME_TRANSLATED   : 
          X_SERVER_SCHEME            : 

  Apache-specific?
          API_VERSION       : 
          THE_REQUEST       : 
          REQUEST_URI       : /cgi/env.cgi
          REQUEST_URL       : 
          REQUEST_FILENAME  : 
          IS_SUBREQ         :
These are the variables actually used on THIS server
VariableValue
REMOTE_ADDR 216.73.216.19
HTTP_CONNECTION keep-alive
HTTP_VIA 1.1 squid-proxy-5b5d847c96-wm7mz (squid/6.10)
SCRIPT_URL /cgi/env.cgi
REQUEST_METHOD GET
QUERY_STRING
HTTP_CACHE_CONTROL max-age=259200
CONTEXT_DOCUMENT_ROOT /custdata01/tomki/public_html
SERVER_NAME www.tomki.com
PATH /usr/local/jdk/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/usr/local/bin:/usr/X11R6/bin:/root/bin:/opt/bin
SCRIPT_URI http://www.tomki.com/cgi/env.cgi
SCRIPT_NAME /cgi/env.cgi
TZ America/Los_Angeles
REQUEST_SCHEME http
HTTP_USER_AGENT Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
UNIQUE_ID aMwS9NX0L5ilX2a2-GosKgAAAAI
SERVER_ADDR 207.135.98.11
SERVER_ADMIN webmaster@tomki.com
GATEWAY_INTERFACE CGI/1.1
HTTP_HOST www.tomki.com
SCRIPT_FILENAME /custdata01/tomki/public_html/cgi/env.cgi
REMOTE_PORT 23573
SERVER_PROTOCOL HTTP/1.1
SERVER_SIGNATURE
DOCUMENT_ROOT /custdata01/tomki/public_html
SERVER_SOFTWARE Apache
HTTP_ACCEPT */*
HTTP_ACCEPT_ENCODING gzip, br, zstd, deflate
SERVER_PORT 80
HTTP_X_FORWARDED_FOR 10.3.55.226
REQUEST_URI /cgi/env.cgi
CONTEXT_PREFIX