Package: libpam-duo Version: 1.9.11-1 Severity: normal Tags: ipv6 Dear Maintainer,
I'm trying to use libpam-duo on a server that has only IPv6 connectivity. Our authentication server has both IPv4 and IPv6 addresses: xenh4:~# host auth.iserv.eu auth.iserv.eu has address 88.198.205.8 auth.iserv.eu has IPv6 address 2a01:4f8:162:1247::108 Unfortunately, libpam-duo seems to ignore the IPv6 and always tries to connect via IPv4: xenh4:~# tshark -i eth0 -f "host auth.iserv.eu" Capturing on 'eth0' 1 0.000000 0.0.0.0 -> 88.198.205.8 TCP 74 49087→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874590986 TSecr=0 WS=64 2 0.997362 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49087→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874591236 TSecr=0 WS=64 3 3.001370 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49087→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874591737 TSecr=0 WS=64 4 7.013370 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49087→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874592740 TSecr=0 WS=64 5 11.020794 0.0.0.0 -> 88.198.205.8 TCP 74 49088→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874593741 TSecr=0 WS=64 6 12.017353 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49088→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874593991 TSecr=0 WS=64 7 14.021371 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49088→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874594492 TSecr=0 WS=64 8 18.029369 0.0.0.0 -> 88.198.205.8 TCP 74 [TCP Retransmission] 49088→443 [SYN] Seq=0 Win=29200 Len=0 MSS=1460 SACK_PERM=1 TSval=2874595494 TSecr=0 WS=64 According to https://duo.com/docs/duounix-notes , IPv6 support was only added in duo_unix-1.9.12 - September 2014: * Include https_timeout configuration parameter * IPv6 support on systems that have getaddrinfo Could the package be updated so that IPv6 support works? -- System Information: Debian Release: 8.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: i386 (x86_64) Foreign Architectures: amd64 Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libpam-duo depends on: ii libc6 2.19-18+deb8u4 ii libduo3 1.9.11-1 ii libpam-runtime 1.1.8-3.1+deb8u1 ii libpam0g 1.1.8-3.1+deb8u1+b1 ii libssl1.0.0 1.0.1t-1+deb8u2 ii multiarch-support 2.19-18+deb8u4 libpam-duo recommends no packages. libpam-duo suggests no packages. -- Configuration Files: /etc/security/pam_duo.conf changed [not included] -- no debconf information
