bsd# which httpd
/usr/local/sbin/httpd
bsd# httpd --help
(48)Address already in use: make_sock: could not bind to address [::]:80
(48)Address already in use: make_sock: could not bind to address [::]:443
[Tue Nov 09 09:31:22 2010] [warn] (2)No such file or directory: Failed to enable the 'httpready' Accept Filter
[Tue Nov 09 09:31:22 2010] [warn] (2)No such file or directory: Failed to enable the 'dataready' Accept Filter
bsd# httpd -M --已成功加載的模塊
Loaded Modules:
core_module (static)
mpm_prefork_module (static)
http_module (static)
so_module (static)
authn_file_module (shared)
authn_dbm_module (shared)
authn_anon_module (shared)
authn_default_module (shared)
authn_alias_module (shared)
authz_host_module (shared)
authz_groupfile_module (shared)
authz_user_module (shared)
authz_dbm_module (shared)
authz_owner_module (shared)
authz_default_module (shared)
auth_basic_module (shared)
auth_digest_module (shared)
file_cache_module (shared)
cache_module (shared)
disk_cache_module (shared)
dumpio_module (shared)
reqtimeout_module (shared)
include_module (shared)
filter_module (shared)
charset_lite_module (shared)
deflate_module (shared)
log_config_module (shared)
logio_module (shared)
env_module (shared)
mime_magic_module (shared)
cern_meta_module (shared)
expires_module (shared)
headers_module (shared)
usertrack_module (shared)
unique_id_module (shared)
setenvif_module (shared)
version_module (shared)
ssl_module (shared)
mime_module (shared)
dav_module (shared)
status_module (shared)
autoindex_module (shared)
asis_module (shared)
info_module (shared)
cgi_module (shared)
dav_fs_module (shared)
vhost_alias_module (shared)
negotiation_module (shared)
dir_module (shared)
imagemap_module (shared)
actions_module (shared)
speling_module (shared)
userdir_module (shared)
alias_module (shared)
rewrite_module (shared)
php5_module (shared)
Syntax OK
bsd# httpd -l --已編譯模塊
Compiled in modules:
core.c
prefork.c
http_core.c
mod_so.c
詳細用法，參見 man httpd