Please accept my apologies for popping up on the list with an immediate question, and even more so if it turns out that I am being stupid, but this one really does have me confused. I have read the manuals and searched and searched, but can't seem to find any reference to anyone else having the same problem, or any related bug reports. I am using Apache 2.4.7 (full details below). The machine has two network interfaces with separate IP addresses, and I want to use a conditional statement in the conf file of the default virtual host to handle traffic coming in via the two IP's differently using SERVER_ADDR to identify them. What I expected to be the complicated bit all works fine, but this construct: <If "%{SERVER_ADDR} == '<ip address of 2nd interface>'"> ....... </If> <Else> ....... </Else> results in this: root@mymachine:apache2# ./bin/apachectl restart AH00526: Syntax error on line 118 of /usr/local/apache2/conf/extra/configfile.conf: Cannot parse condition clause: Variable 'SERVER_ADDR' does not exist root@mymachine:apache2# I have created a page where SSI tells me all the environment variables, and SERVER_ADDR is there alright, a full list is below. If, in my conf file, I change SERVER_ADDR to other variables including: HTTP_HOST; SERVER_NAME; REMOTE_ADDR; and SERVER_PORT, apache restarts fine and conditional behaviour is as expected in those instances. It just seems to be SERVER_ADDR which isn't working. In a desperate attempt to find out what was going on, I even put a: SetEnv SERVER_ADDR <ip address> higher up the file, but the same error still came back. Am I missing something and/or does this work for other people? Supplemental information about my system follows. ---------------------------------------------------------- My apache installation details are as follows: Server version: Apache/2.4.7 (Unix) Server built: Feb 11 2014 17:07:38 Server's Module Magic Number: 20120211:27 Server loaded: APR 1.4.6, APR-UTIL 1.4.1 Compiled using: APR 1.4.6, APR-UTIL 1.4.1 Architecture: 64-bit Server MPM: worker threaded: yes (fixed thread count) forked: yes (variable process count) Server compiled with.... -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=256 -D HTTPD_ROOT="/usr/local/apache2" -D SUEXEC_BIN="/usr/local/apache2/bin/suexec" -D DEFAULT_PIDLOG="logs/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf" It's running on Debian Wheezy, but is installed from source, not via a Debian package. The full list of my environment variables according to SSI is: HTTPS HTTP_HOST HTTP_USER_AGENT HTTP_ACCEPT HTTP_ACCEPT_LANGUAGE HTTP_ACCEPT_ENCODING HTTP_CONNECTION PATH LD_LIBRARY_PATH SERVER_SIGNATURE SERVER_SOFTWARE SERVER_NAME SERVER_ADDR SERVER_PORT REMOTE_ADDR DOCUMENT_ROOT REQUEST_SCHEME CONTEXT_PREFIX CONTEXT_DOCUMENT_ROOT SERVER_ADMIN SCRIPT_FILENAME REMOTE_PORT GATEWAY_INTERFACE SERVER_PROTOCOL REQUEST_METHOD QUERY_STRING REQUEST_URI SCRIPT_NAME DATE_LOCAL DATE_GMT LAST_MODIFIED DOCUMENT_URI USER_NAME DOCUMENT_NAME ---------------------------------------------------------- Many thanks in advance for any help which can be given, Adrian --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx