Unsupported Apache Modules, Directives, etc.

There are a few Apache modules and directives that are currently not supported by LiteSpeed. These items may or may not be supported in a future version of LSWS.

• mod_speling
• Content negotiation via mod_negotiation. For simple setup, you can use a rewrite-based solution.
• mpm_winnt
• mod_cloudflare

• <Directory>…</Directory> with regular expression.
• <if>…</if> not supported for 5.4.x and lower version, but it is supported since 6.0 version
• SecAuditLogType in ModSecurity specifies the type of audit log to use: “Serial” or “Concurrent”. LSWS does not support the “Concurrent” type.
• ProxyPass , not supported for 5.4.x and lower version, but it is supported since 6.0 version
• Variables can be used in Apache functions, as shown in Apache's official documentation, but LiteSpeed does not support functions such as md5 or base64. For example, %{md5:foo} is not supported.
• FallbackResource is not supported by LSWS. Instead, you can use rewrite rules.
• RewriteMap is supported but prg: External Rewriting Program is not supported
• In Header always edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure, edit is not supported.
• AllowOverride is supported by AllowOverrideList is not.
• DirectorySlash Off
• RequestHeader unset, not supported by earlier version but supported starting 5.4.11 build 5

• RTMP proxy