Package: vpnc Followup-For: Bug #881600 I saw the same error message while doing "ifup wlp2s0". I used strace and strace-process-tree.py (https://gist.github.com/mgedmin/4953427) to track it down. It appears that resolvconf is calling systemctl and it's exiting with exit code 1 after printing "Too few arguments".
As with you the network functions so I guess it's not serious. Curiously, "strace ifdown" ends completely but "strace ifup" sometimes gets stuck. -- System Information: Debian Release: 9.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-7-amd64 (SMP w/8 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968), LANGUAGE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages vpnc depends on: ii libc6 2.24-11+deb9u3 ii libgcrypt20 1.7.6-2+deb9u3 ii libgnutls30 3.5.8-5+deb9u3 ii perl 5.24.1-3+deb9u4 pn vpnc-scripts <none> Versions of packages vpnc recommends: ii iproute2 4.9.0-1+deb9u1 Versions of packages vpnc suggests: ii openresolv [resolvconf] 3.8.0-1

