Unless I am missing something obvious, www-apache/mod_authn_pam does not support anything but valid-user in the Require directive. In migrating from mod_auth_pam to mod_authn_pam I cannot authenticate users against a specific group. This makes things very insecure as we need to control user access. With www-apache/mod_auth_pam being removed from Gentoo in August, 2009, this means my only option is to use mod_authn_pam. I absolutely have to have this work. Reproducible: Always Steps to Reproduce: Configure a site to use mod_authn_pam. Here is an example: AuthBasicAuthoritative Off AuthType Basic AuthName "PAM Login" AuthBasicProvider pam Require pam-group admingroup "admingroup" would be in the /etc/groups file on the system. Actual Results: The error log fills with this line: access to /my_view_page.php failed, reason: require directives present and no Authoritative handler. Expected Results: The user should be able to log in based on the group that they are in. Portage 2.1.6.13 (default/linux/x86/2008.0, gcc-4.3.2, glibc-2.9_p20081201-r2, 2.6.20.7 i686) ================================================================= System uname: Linux-2.6.20.7-i686-Intel-R-_Xeon-TM-_CPU_3.60GHz-with-glibc2.0 Timestamp of tree: Fri, 10 Jul 2009 05:00:02 +0000 app-shells/bash: 3.2_p39 dev-lang/python: 2.5.4-r3 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.6-r2 sys-devel/autoconf: 2.63 sys-devel/automake: 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=nocona -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-O2 -march=nocona -pipe" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps=y" FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://gentoo.osuosl.org/ http://distro.ibiblio.org/pub/linux/distributions/gentoo/ ftp://ftp.ussg.iu.edu/pub/linux/gentoo" LDFLAGS="-Wl,-O1" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://192.168.0.157/gentoo-portage" USE="acl apache2 bash-completion berkdb bzip2 cli cracklib crypt ctype cups curl dri fortran gd gdbm gif gpm iconv imagemagick ipv6 isdnlog jpeg midi mudflap mysql ncurses nls nptl nptlonly openmp pam pcre pdf perl png postgres pppd python readline reflection samba session simplexml snmp sockets spl ssl sysfs tcpd threads tiff unicode vim-syntax x86 xml xorg zip zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="fbdev glint i810 intel mach64 mga neomagic nv r128 radeon savage sis tdfx trident vesa vga via vmware voodoo" Unset: CPPFLAGS, CTARGET, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
I did more digging, and found out that the "Require group" is handled by mod_auth_sys_group.so, which is installed with mod_auth_pam. It seems that if this module is present and loaded that mod_authn_pam will also work as expected.
I've created an ebuild based on the Debian package: https://github.com/dwc/dwc-overlay/tree/master/www-apache/mod_auth_pam I know the module is outdated but it does work on Apache 2.2.
Maybe www-apache/mod_authnz_external could be used instead: http://pkgs.fedoraproject.org/cgit/mod_auth_pam.git/tree/dead.package https://bugs.launchpad.net/ubuntu/+source/libapache2-mod-auth-pam/+bug/130099/comments/8 https://bugs.launchpad.net/ubuntu/+source/libapache2-mod-auth-pam/+bug/130099/comments/9
dropped
