Added lighttpd and renamed uname to linux for getting their versions.

lighttpd/lighttpd.lua

@@ -0,0 +1,18 @@
+---
+permalink: /cgi/lighttpd/index.lua
+---
+
+-- Function to execute shell commands
+local function shell_exec(command)
+    local handle = io.popen(command)
+    local result = handle:read("*a")
+    handle:close()
+    return result
+end
+
+local lighttpd = shell_exec('lighttpd -v')
+
+io.write("Content-Type: text/plain; charset=utf-8\r\n\r\n")
+
+io.write(lighttpd:sub(10, 15))
+