The problem is when I "apachectl restart" (SIGHUP), all Apache processes die (no core dump). However, if I "apachectl stop", (SIGTERM) followed by "apachectl start" everything is OK (no error_log error messages and every thing works fine). My configuration is: apache_1.3.12/mod_perl-1.24/Perl-5.6.0/linux-2.2.14. (I have mod_perl linked statically.:-) In the httpd.conf file, I have: # PerlModule Apache::AutoIndex PerlModule Apache::Icon IndexOptions FancyIndexing # In error_log, after a SIGHUP, the following is recorded: Syntax error on line 156 of /usr/local/apache/conf/httpd.conf: Invalid command 'IndexOptions', perhaps mis-spelled or defined by a module not included in the server configuration Any help or guidance will be appreciated