众所周知Nginx是分成一个个模块的，比如core模块，gzip模块，proxy模块，每个模块负责不同的功能，除了基本的模块，有些模块可以选择编译或不编译进Nginx。官网文档中的Modules reference部分列出了nginx源码包的所有模块。我们可以按照自己服务器的需要来定制出一个最适合自己的Nginx服务器。
前面我们已经讲过安装nginx，我们在执行./configure 指定相关模块，只是指定了安装位置，下面我们来在已有的nginx上来启用http_random_index_module模块
下面列出了 那个模块可以被启用，哪些模块已经默认启用了，你可以禁止启用他。--with-***表示可以被启用，没有默认启用的模块，--without-***表示已经默认被启用，你可以禁止启用的模块
[root@bogon nginx-1.18.0]# ./configure --help --help print this message --prefix=PATH set installation prefix --sbin-path=PATH set nginx binary pathname --modules-path=PATH set modules path --conf-path=PATH set nginx.conf pathname --error-log-path=PATH set error log pathname --pid-path=PATH set nginx.pid pathname --lock-path=PATH set nginx.lock pathname --user=USER set non-privileged user for worker processes --group=GROUP set non-privileged group for worker processes --build=NAME set build name --builddir=DIR set build directory --with-select_module enable select module --without-select_module disable select module --with-poll_module enable poll module --without-poll_module disable poll module --with-threads enable thread pool support --with-file-aio enable file AIO support --with-http_ssl_module enable ngx_http_ssl_module --with-http_v2_module enable ngx_http_v2_module --with-http_realip_module enable ngx_http_realip_module --with-http_addition_module enable ngx_http_addition_module --with-http_xslt_module enable ngx_http_xslt_module --with-http_xslt_module=dynamic enable dynamic ngx_http_xslt_module --with-http_image_filter_module enable ngx_http_image_filter_module --with-http_image_filter_module=dynamic enable dynamic ngx_http_image_filter_module --with-http_geoip_module enable ngx_http_geoip_module --with-http_geoip_module=dynamic enable dynamic ngx_http_geoip_module --with-http_sub_module enable ngx_http_sub_module --with-http_dav_module enable ngx_http_dav_module --with-http_flv_module enable ngx_http_flv_module --with-http_mp4_module enable ngx_http_mp4_module --with-http_gunzip_module enable ngx_http_gunzip_module --with-http_gzip_static_module enable ngx_http_gzip_static_module --with-http_auth_request_module enable ngx_http_auth_request_module --with-http_random_index_module enable ngx_http_random_index_module --with-http_secure_link_module enable ngx_http_secure_link_module --with-http_degradation_module enable ngx_http_degradation_module --with-http_slice_module enable ngx_http_slice_module --with-http_stub_status_module enable ngx_http_stub_status_module --without-http_charset_module disable ngx_http_charset_module --without-http_gzip_module disable ngx_http_gzip_module --without-http_ssi_module disable ngx_http_ssi_module --without-http_userid_module disable ngx_http_userid_module --without-http_access_module disable ngx_http_access_module --without-http_auth_basic_module disable ngx_http_auth_basic_module --without-http_mirror_module disable ngx_http_mirror_module --without-http_autoindex_module disable ngx_http_autoindex_module --without-http_geo_module disable ngx_http_geo_module --without-http_map_module disable ngx_http_map_module --without-http_split_clients_module disable ngx_http_split_clients_module --without-http_referer_module disable ngx_http_referer_module --without-http_rewrite_module disable ngx_http_rewrite_module --without-http_proxy_module disable ngx_http_proxy_module --without-http_fastcgi_module disable ngx_http_fastcgi_module --without-http_uwsgi_module disable ngx_http_uwsgi_module --without-http_scgi_module disable ngx_http_scgi_module --without-http_grpc_module disable ngx_http_grpc_module --without-http_memcached_module disable ngx_http_memcached_module --without-http_limit_conn_module disable ngx_http_limit_conn_module --without-http_limit_req_module disable ngx_http_limit_req_module --without-http_empty_gif_module disable ngx_http_empty_gif_module --without-http_browser_module disable ngx_http_browser_module --without-http_upstream_hash_module disable ngx_http_upstream_hash_module --without-http_upstream_ip_hash_module disable ngx_http_upstream_ip_hash_module --without-http_upstream_least_conn_module disable ngx_http_upstream_least_conn_module --without-http_upstream_random_module disable ngx_http_upstream_random_module --without-http_upstream_keepalive_module disable ngx_http_upstream_keepalive_module --without-http_upstream_zone_module disable ngx_http_upstream_zone_module --with-http_perl_module enable ngx_http_perl_module --with-http_perl_module=dynamic enable dynamic ngx_http_perl_module --with-perl_modules_path=PATH set Perl modules path --with-perl=PATH set perl binary pathname --http-log-path=PATH set http access log pathname --http-client-body-temp-path=PATH set path to store http client request body temporary files --http-proxy-temp-path=PATH set path to store http proxy temporary files --http-fastcgi-temp-path=PATH set path to store http fastcgi temporary files --http-uwsgi-temp-path=PATH set path to store http uwsgi temporary files --http-scgi-temp-path=PATH set path to store http scgi temporary files --without-http disable HTTP server --without-http-cache disable HTTP cache --with-mail enable POP3/IMAP4/SMTP proxy module --with-mail=dynamic enable dynamic POP3/IMAP4/SMTP proxy module --with-mail_ssl_module enable ngx_mail_ssl_module --without-mail_pop3_module disable ngx_mail_pop3_module --without-mail_imap_module disable ngx_mail_imap_module --without-mail_smtp_module disable ngx_mail_smtp_module --with-stream enable TCP/UDP proxy module --with-stream=dynamic enable dynamic TCP/UDP proxy module --with-stream_ssl_module enable ngx_stream_ssl_module --with-stream_realip_module enable ngx_stream_realip_module --with-stream_geoip_module enable ngx_stream_geoip_module --with-stream_geoip_module=dynamic enable dynamic ngx_stream_geoip_module --with-stream_ssl_preread_module enable ngx_stream_ssl_preread_module --without-stream_limit_conn_module disable ngx_stream_limit_conn_module --without-stream_access_module disable ngx_stream_access_module --without-stream_geo_module disable ngx_stream_geo_module --without-stream_map_module disable ngx_stream_map_module --without-stream_split_clients_module disable ngx_stream_split_clients_module --without-stream_return_module disable ngx_stream_return_module --without-stream_upstream_hash_module disable ngx_stream_upstream_hash_module --without-stream_upstream_least_conn_module disable ngx_stream_upstream_least_conn_module --without-stream_upstream_random_module disable ngx_stream_upstream_random_module --without-stream_upstream_zone_module disable ngx_stream_upstream_zone_module --with-google_perftools_module enable ngx_google_perftools_module --with-cpp_test_module enable ngx_cpp_test_module --add-module=PATH enable external module --add-dynamic-module=PATH enable dynamic external module --with-compat dynamic modules compatibility --with-cc=PATH set C compiler pathname --with-cpp=PATH set C preprocessor pathname --with-cc-opt=OPTIONS set additional C compiler options --with-ld-opt=OPTIONS set additional linker options --with-cpu-opt=CPU build for the specified CPU, valid values: pentium, pentiumpro, pentium3, pentium4, athlon, opteron, sparc32, sparc64, ppc64 --without-pcre disable PCRE library usage --with-pcre force PCRE library usage --with-pcre=DIR set path to PCRE library sources --with-pcre-opt=OPTIONS set additional build options for PCRE --with-pcre-jit build PCRE with JIT compilation support --with-zlib=DIR set path to zlib library sources --with-zlib-opt=OPTIONS set additional build options for zlib --with-zlib-asm=CPU use zlib assembler sources optimized for the specified CPU, valid values: pentium, pentiumpro --with-libatomic force libatomic_ops library usage --with-libatomic=DIR set path to libatomic_ops library sources --with-openssl=DIR set path to OpenSSL library sources --with-openssl-opt=OPTIONS set additional build options for OpenSSL --with-debug enable debug logging
前面的文章我们安装完nginx后并没有启用多余的模块：
一，停掉nginx 服务,并备份/usr/local/nginx/sbin/nginx命令
nginx -s stop
mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
二，进入/usr/local/nginx-1.18.0/目录下
执行
[root@bogon nginx-1.18.0]# ./configure --prefix=/usr/local/nginx --with-http_random_index_module checking for OS + Linux 3.10.0-693.el7.x86_64 x86_64 checking for C compiler ... found + using GNU C compiler + gcc version: 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) checking for gcc -pipe switch ... found checking for -Wl,-E switch ... found checking for gcc builtin atomic operations ... found checking for C99 variadic macros ... found checking for gcc variadic macros ... found checking for gcc builtin 64 bit byteswap ... found checking for unistd.h ... found checking for inttypes.h ... found checking for limits.h ... found checking for sys/filio.h ... not found checking for sys/param.h ... found checking for sys/mount.h ... found checking for sys/statvfs.h ... found checking for crypt.h ... found checking for Linux specific features checking for epoll ... found checking for EPOLLRDHUP ... found checking for EPOLLEXCLUSIVE ... not found checking for O_PATH ... found checking for sendfile() ... found checking for sendfile64() ... found checking for sys/prctl.h ... found checking for prctl(PR_SET_DUMPABLE) ... found checking for prctl(PR_SET_KEEPCAPS) ... found checking for capabilities ... found checking for crypt_r() ... found checking for sys/vfs.h ... found checking for nobody group ... found checking for poll() ... found checking for /dev/poll ... not found checking for kqueue ... not found checking for crypt() ... not found checking for crypt() in libcrypt ... found checking for F_READAHEAD ... not found checking for posix_fadvise() ... found checking for O_DIRECT ... found checking for F_NOCACHE ... not found checking for directio() ... not found checking for statfs() ... found checking for statvfs() ... found checking for dlopen() ... not found checking for dlopen() in libdl ... found checking for sched_yield() ... found checking for sched_setaffinity() ... found checking for SO_SETFIB ... not found checking for SO_REUSEPORT ... found checking for SO_ACCEPTFILTER ... not found checking for SO_BINDANY ... not found checking for IP_TRANSPARENT ... found checking for IP_BINDANY ... not found checking for IP_BIND_ADDRESS_NO_PORT ... found checking for IP_RECVDSTADDR ... not found checking for IP_SENDSRCADDR ... not found checking for IP_PKTINFO ... found checking for IPV6_RECVPKTINFO ... found checking for TCP_DEFER_ACCEPT ... found checking for TCP_KEEPIDLE ... found checking for TCP_FASTOPEN ... found checking for TCP_INFO ... found checking for accept4() ... found checking for eventfd() ... found checking for int size ... 4 bytes checking for long size ... 8 bytes checking for long long size ... 8 bytes checking for void * size ... 8 bytes checking for uint32_t ... found checking for uint64_t ... found checking for sig_atomic_t ... found checking for sig_atomic_t size ... 4 bytes checking for socklen_t ... found checking for in_addr_t ... found checking for in_port_t ... found checking for rlim_t ... found checking for uintptr_t ... uintptr_t found checking for system byte ordering ... little endian checking for size_t size ... 8 bytes checking for off_t size ... 8 bytes checking for time_t size ... 8 bytes checking for AF_INET6 ... found checking for setproctitle() ... not found checking for pread() ... found checking for pwrite() ... found checking for pwritev() ... found checking for sys_nerr ... found checking for localtime_r() ... found checking for clock_gettime(CLOCK_MONOTONIC) ... found checking for posix_memalign() ... found checking for memalign() ... found checking for mmap(MAP_ANON|MAP_SHARED) ... found checking for mmap("/dev/zero", MAP_SHARED) ... found checking for System V shared memory ... found checking for POSIX semaphores ... not found checking for POSIX semaphores in libpthread ... found checking for struct msghdr.msg_control ... found checking for ioctl(FIONBIO) ... found checking for ioctl(FIONREAD) ... found checking for struct tm.tm_gmtoff ... found checking for struct dirent.d_namlen ... not found checking for struct dirent.d_type ... found checking for sysconf(_SC_NPROCESSORS_ONLN) ... found checking for sysconf(_SC_LEVEL1_DCACHE_LINESIZE) ... found checking for openat(), fstatat() ... found checking for getaddrinfo() ... found checking for PCRE library ... found checking for PCRE JIT support ... found checking for zlib library ... found creating objs/Makefile Configuration summary + using system PCRE library + OpenSSL library is not used + using system zlib library nginx path prefix: "/usr/local/nginx" nginx binary file: "/usr/local/nginx/sbin/nginx" nginx modules path: "/usr/local/nginx/modules" nginx configuration prefix: "/usr/local/nginx/conf" nginx configuration file: "/usr/local/nginx/conf/nginx.conf" nginx pid file: "/usr/local/nginx/logs/nginx.pid" nginx error log file: "/usr/local/nginx/logs/error.log" nginx http access log file: "/usr/local/nginx/logs/access.log" nginx http client request body temporary files: "client_body_temp" nginx http proxy temporary files: "proxy_temp" nginx http fastcgi temporary files: "fastcgi_temp" nginx http uwsgi temporary files: "uwsgi_temp" nginx http scgi temporary files: "scgi_temp" [root@bogon nginx-1.18.0]#
执行完成后运行
make
注意不是make install,make install 会覆盖之前的安装。很危险
然后执行命令：
cp /usr/local/nginx-1.18.0/objs/nginx /usr/local/nginx/sbin/
将新生成的nginx程序复制到老的安装目录下面，下面我们来校验是否开启成功：
nginx -V
[root@bogon nginx-1.18.0]# nginx -V nginx version: nginx/1.18.0 built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) configure arguments: --prefix=/usr/local/nginx --with-http_random_index_module
可以看到已经成功将模块http_random_index_module开启。
这里安装第三方的模块也是同样的步骤，只是跟在./configure 后面的参数有所不同，
应该使用：
--add-module 参数来指定安装的模块的源码路径，后面的步骤都是相同的。
参考文档：
