/ppp/ip-up.d/0000usepeerdns
http://github.com/brinkman83/bashrc · Shell · 33 lines · 16 code · 9 blank · 8 comment · 6 complexity · 47b1eee2bd4e9e492ad5a9f5870ca272 MD5 · raw file
- #!/bin/sh -e
- # this variable is only set if the usepeerdns pppd option is being used
- [ "$USEPEERDNS" ] || exit 0
- # exit if the resolvconf package is installed
- [ -x /sbin/resolvconf ] && exit 0
- # create the file if it does not exist
- if [ ! -e /etc/resolv.conf ]; then
- : > /etc/resolv.conf
- fi
- # follow any symlink to find the real file
- REALRESOLVCONF=$(readlink --canonicalize /etc/resolv.conf)
- # merge the new nameservers with the other options from the old configuration
- {
- cat /etc/ppp/resolv.conf
- grep --invert-match '^nameserver[[:space:]]' "$REALRESOLVCONF" || true
- } > "$REALRESOLVCONF.tmp"
- # backup the old configuration and install the new one
- cp -a "$REALRESOLVCONF" "$REALRESOLVCONF.pppd-backup"
- mv -f "$REALRESOLVCONF.tmp" "$REALRESOLVCONF"
- # restart nscd because resolv.conf has changed
- if [ -e /var/run/nscd.pid ]; then
- /etc/init.d/nscd restart || true
- fi
- exit 0