An issue with php/apache is causing apache not to start in FreeBSD. It segfaults and core dumps, logged in the /var/log/httpd/error_log.
Try removing –with-openssl from your configure.php file and recompile php.

cd /usr/local/directadmin/customapache
vi configure.php
#remove –with-openssl from the file, save, exit.
./build clean
./build php n

Possibly a mod_perl issue. Edit the /etc/httpd/conf/httpd.conf
change:

AddModule mod_perl.c

to

#AddModule mod_perl.c

and then restart apache. If you don’t have "AddModule mod_perl.c", then don’t worry about this entry.
Remove the "LoadModule perl_module /usr/lib/apache/mod_perl.so" if you have it as well.
This won’t affect files in the cgi-bin (I’ve seen very few people actually making use of mod_perl itself).
more info:
Previous workaround for the problem is to remove thp php flags from the httpd.conf files:

cd /usr/local/directadmin/data/templates
cp virtual_host*.conf custom
cd custom
perl -pi -e ‘s/php_admin/#php_admin/’ *
echo "action=rewrite&value=httpd" >> /usr/local/directadmin/data/task.queue
/usr/local/directadmin/dataskq d
/usr/local/etc/rc.d/httpd restart

One user reported that installing zend solved this problem as well, so try:

cd /usr/local/directadmin/customapache
./build zend

Possibly have to downgrade zend to 2.5.7 from 2.6.2 as well as the zend binaries may not be backwards compatible.
To downgrade to apache 1.3.33 and php 4.3.11, run:

cd /usr/local/directadmin/customapache
./build clean
perl -pi -e ‘s/1.3.34/1.3.33/’ build
perl -pi -e ‘s/1.3.34/1.3.33/’ configure.apache_ssl
perl -pi -e ‘s/2.8.25/2.8.24/’ build
perl -pi -e ‘s/4.4.1/4.3.11/’ build
./build update_data
./build all d

Incoming search terms:

LAMP is a popular open source web platform commonly used to run dynamic web sites and servers. It includes Linux, Apache, MySQL, and PHP/Python/Perl and is considered by many the platform of choice for development and deployment of high performance web applications which require a solid and reliable foundation.

This appliance includes all the standard features in TurnKey Core, and on top of that:
SSL support out of the box.
PHP, Python and Perl support for Apache2 and MySQL.
PHPMyAdmin administration frontend for MySQL (listening on port 12322 – uses SSL).
Postfix MTA (bound to localhost) to allow sending of email from web applications (e.g., password recovery)
Webmin modules for configuring Apache2, PHP, MySQL and Postfix.

A separate LAPP stack appliance features PostgreSQL instead of MySQL.

this program also available on our VPS images.

Incoming search terms:

This relates to semaphores on your system (you’ve run out). Run the following to clear them out:

ipcs | grep apache | awk ‘{print $2}’ > sem.txt
for i in `cat sem.txt`; do { ipcrm -s $i; }; done;

Incoming search terms:

edit:
/usr/local/lib/php.ini
Search for

; Maximum allowed size for uploaded files.
upload_max_filesize = 2M

Change the 2M to whatever new value you want, then restart apache.

Incoming search terms:

If you need to go back to apache 1.3 after installing apache 2, you’ll need to do the following:
1) Restore the old httpd.conf file:

cp -f /etc/httpd/conf/httpd.conf.1.3.backup /etc/httpd/conf/httpd.conf

2) Get DirectAdmin to use the old httpd.conf files for the users. Edit the /usr/local/directadmin/conf/directadmin.conf file and change apache_ver=2.0 to apache_ver=1.3. Also, if you were using custombuild, and are going back to customapache, the apache_conf value needs to be reset to:

apacheconf=/etc/httpd/conf/httpd.conf

Then type

echo "action=rewrite&value=ips" >> /usr/local/directadmin/data/task.queue
echo "action=rewrite&value=httpd" >> /usr/local/directadmin/data/task.queue
echo "action=directadmin&value=restart" >> /usr/local/directadmin/data/task.queue

3) Now you can recompile apache 1.3

rm -f /usr/lib/apache/*
cd /usr/local/directadmin/customapache
./build clean
./build all

4) Fix the modules link:

cd /etc/httpd
rm -f modules
ln -s /usr/lib/apache modules

5) Restore the old boot script:
FreeBSD:

cp -f /usr/local/directadmin/customapache/httpd_freebsd /usr/local/etc/rc.d/httpd
chmod 755 /usr/local/etc/rc.d/httpd
/usr/local/etc/rc.d/httpd restart

RedHat:

cp -f /usr/local/directadmin/customapache/httpd /etc/init.d/httpd
chmod 755 /etc/init.d/httpd
/etc/init.d/httpd restart

Incoming search terms: