brian 98/05/11 22:23:22
Modified: htdocs/manual/misc compat_notes.html Log: Updated, cleaned up, and tossed out comments dealing with decades-old Apache versions. Revision Changes Path 1.21 +87 -127 apache-1.3/htdocs/manual/misc/compat_notes.html Index: compat_notes.html =================================================================== RCS file: /export/home/cvs/apache-1.3/htdocs/manual/misc/compat_notes.html,v retrieving revision 1.20 retrieving revision 1.21 diff -u -r1.20 -r1.21 --- compat_notes.html 1998/03/13 19:19:57 1.20 +++ compat_notes.html 1998/05/12 05:23:22 1.21 @@ -15,138 +15,98 @@ <HR> -While Apache 0.8.x and beyond are for the most part a drop-in -replacement for NCSA's httpd and earlier versions of Apache, there are -a couple gotcha's to watch out for. These are mostly due to the fact -that the parser for config and access control files was rewritten from -scratch, so certain liberties the earlier servers took may not be -available here. These are all easily fixable. If you know of other -non-fatal problems that belong here, <A +While Apache is for the most part a drop-in replacement for NCSA's +httpd, there are a couple gotcha's to watch out for. These are mostly +due to the fact that the parser for config and access control files +was rewritten from scratch, so certain liberties the earlier servers +took may not be available here. These are all easily fixable. If you +know of other non-fatal problems that belong here, <A HREF="http://www.apache.org/bug_report.html";>let us know.</A> -<P>Please also check the <A HREF="known_bugs.html">known bugs</A> -page, and the <A HREF="known_client_problems.html">known client -problems</A> page.</P> +<P>Please also check the <A HREF="known_client_problems.html">known +client problems</A> page. - - <OL> - <LI>The basic mod_auth <CODE>AuthGroupFile</CODE>-specified group file - format allows commas between user names - Apache does not.<BR> - <EM>- added 12/1/96</EM> -</LI> - - <LI><P>If you follow the NCSA guidelines for setting up access restrictions - based on client domain, you may well have added entries for, - <CODE>AuthType, AuthName, AuthUserFile</CODE> or <CODE>AuthGroupFile</CODE>. - <STRONG>None</STRONG> of these are needed (or appropriate) for restricting access - based on client domain. - - <P>When Apache sees <CODE>AuthType</CODE> it (reasonably) assumes you - are using some authorization type based on username and password. - - <P>Please remove <CODE>AuthType</CODE>, it's unnecessary even for NCSA. - - <P> - - <LI><CODE>AuthUserFile</CODE> requires a full pathname. In earlier - versions of NCSA httpd and Apache, you could use a filename - relative to the .htaccess file. This could be a major security hole, - as it made it trivially easy to make a ".htpass" file in the a - directory easily accessible by the world. We recommend you store - your passwords outside your document tree. - - <P> - - <LI><CODE>OldScriptAlias</CODE> is no longer supported. - - <P> - - <LI><CODE>exec cgi=""</CODE> produces reasonable <STRONG>malformed header</STRONG> - responses when used to invoke non-CGI scripts.<BR> - The NCSA code ignores the missing header. (bad idea)<BR> - Solution: write CGI to the CGI spec or use <CODE>exec cmd=""</CODE> instead. - <P>We might add <CODE>virtual</CODE> support to <CODE>exec cmd</CODE> to - make up for this difference. - - <P> - - <LI><Limit> silliness - in the old Apache 0.6.5, a - directive of <Limit GET> would also restrict POST methods - Apache 0.8.8's new - core is correct in not presuming a limit on a GET is the same limit on a POST, - so if you are relying on that behavior you need to change your access configurations - to reflect that. - - <P> - - <LI>Icons for FancyIndexing broken - well, no, they're not broken, - we've just upgraded the - icons from flat .xbm files to pretty and much smaller .gif files, courtesy of -<A HREF="mailto:[EMAIL PROTECTED]">Kevin Hughes</A> at -<A HREF="http://www.eit.com/";>EIT</A>. - If you are using the same srm.conf from an old distribution, make sure - you add the new - <A - HREF="../mod/mod_autoindex.html#addicon" - >AddIcon</A>, - <A - HREF="../mod/mod_autoindex.html#addiconbytype" - >AddIconByType</A>, - and - <A - HREF="../mod/mod_autoindex.html#defaulticon" - >DefaultIcon</A> - directives. - - <P> - - <LI>Under IRIX, the "Group" directive in httpd.conf needs to be a - valid group name - (<EM>i.e.</EM>, "nogroup") not the numeric group ID. The distribution - httpd.conf, and earlier ones, had the default Group be "#-1", which - was causing silent exits at startup.<P> - -<LI><CODE>.asis</CODE> files: Apache 0.6.5 did not require a Status header; -it added one automatically if the .asis file contained a Location header. -0.8.14 requires a Status header. <P> - - <P> - <LI>Apache versions before 1.2b1 will ignore the last line of configuration - files if the last line does not have a trailing newline. This affects - configuration files (httpd.conf, access.conf and srm.conf), and - htpasswd and htgroup files. - </LI> - - <LI>Apache does not permit commas delimiting the methods in <Limit>. - - <LI>Apache's <CODE><VirtualHost></CODE> treats all addresses as - "optional" (i.e. the server should continue booting if it can't resolve - the address). Whereas in NCSA the default is to fail booting unless - an added <CODE>optional</CODE> keyword is included. - - <LI>Apache does not implement <CODE>OnDeny</CODE> use - <A HREF="../mod/core.html#errordocument"><CODE>ErrorDocument</CODE></A> - instead. - - <LI>Apache (as of 1.3) always performs the equivalent of - <CODE>HostnameLookups minimal</CODE>. <CODE>minimal</CODE> is not an - option to <A HREF="../mod/core.html#hostnamelookups"><CODE> - HostnameLookups</CODE></A>. - - <LI>To embed spaces in directive arguments NCSA used a backslash - before the space. Apache treats backslashes as normal characters. To - embed spaces surround the argument with double-quotes instead. - - <LI>Apache does not implement the NCSA <CODE>referer</CODE> - directive. See <A HREF="http://bugs.apache.org/index/full/968";> - PR#968</A> for a few brief suggestions on alternative ways to - implement the same thing under Apache. - - <LI>Apache does not allow ServerRoot settings inside a VirtualHost - container. There is only one global ServerRoot in Apache; any desired - changes in paths for virtual hosts need to be made with the explicit - directives, eg. DocumentRoot, TransferLog, etc. + format allows commas between user names - Apache does not. + +<P> +<LI>If you follow the NCSA guidelines for setting up access + restrictions based on client domain, you may well have added + entries for, <CODE>AuthType, AuthName, AuthUserFile</CODE> or + <CODE>AuthGroupFile</CODE>. <STRONG>None</STRONG> of these are + needed (or appropriate) for restricting access based on client + domain. When Apache sees <CODE>AuthType</CODE> it (reasonably) + assumes you are using some authorization type based on username + and password. Please remove <CODE>AuthType</CODE>, it's + unnecessary even for NCSA. + +<P> +<LI><CODE>OldScriptAlias</CODE> is no longer supported. + +<P> +<LI><CODE>exec cgi=""</CODE> produces reasonable <STRONG>malformed + header</STRONG> responses when used to invoke non-CGI scripts.<BR> + The NCSA code ignores the missing header. (bad idea)<BR> Solution: + write CGI to the CGI spec or use <CODE>exec cmd=""</CODE> instead. + <P>We might add <CODE>virtual</CODE> support to <CODE>exec + cmd</CODE> to make up for this difference. + +<P> +<LI>Icons for FancyIndexing broken - well, no, they're not broken, + we've just upgraded the icons from flat .xbm files to pretty and + much smaller .gif files, courtesy of <A + HREF="mailto:[EMAIL PROTECTED]">Kevin Hughes</A> at <A + HREF="http://www.eit.com/";>EIT</A>. If you are using the same + srm.conf from an old distribution, make sure you add the new <A + HREF="../mod/mod_autoindex.html#addicon">AddIcon</A>, <A + HREF="../mod/mod_autoindex.html#addiconbytype">AddIconByType</A>, + and <A + HREF="../mod/mod_autoindex.html#defaulticon">DefaultIcon</A> + directives. + +<P> +<LI>Apache versions before 1.2b1 will ignore the last line of configuration + files if the last line does not have a trailing newline. This affects + configuration files (httpd.conf, access.conf and srm.conf), and + htpasswd and htgroup files. + +<P> +<LI>Apache does not permit commas delimiting the methods in <Limit>. + +<P> +<LI>Apache's <CODE><VirtualHost></CODE> treats all addresses as + "optional" (i.e. the server should continue booting if it can't + resolve the address). Whereas in NCSA the default is to fail + booting unless an added <CODE>optional</CODE> keyword is included. + +<P> +<LI>Apache does not implement <CODE>OnDeny</CODE> use + <A HREF="../mod/core.html#errordocument"><CODE>ErrorDocument</CODE></A> + instead. + +<P> +<LI>Apache (as of 1.3) always performs the equivalent of + <CODE>HostnameLookups minimal</CODE>. <CODE>minimal</CODE> is not an + option to <A HREF="../mod/core.html#hostnamelookups"><CODE> + HostnameLookups</CODE></A>. + +<P> +<LI>To embed spaces in directive arguments NCSA used a backslash + before the space. Apache treats backslashes as normal characters. To + embed spaces surround the argument with double-quotes instead. + +<P> +<LI>Apache does not implement the NCSA <CODE>referer</CODE> + directive. See <A HREF="http://bugs.apache.org/index/full/968";> + PR#968</A> for a few brief suggestions on alternative ways to + implement the same thing under Apache. + +<P> +<LI>Apache does not allow ServerRoot settings inside a VirtualHost + container. There is only one global ServerRoot in Apache; any desired + changes in paths for virtual hosts need to be made with the explicit + directives, eg. DocumentRoot, TransferLog, etc. </OL>
