diff options
Diffstat (limited to 'sysconfig/network-scripts/network-functions')
| -rw-r--r-- | sysconfig/network-scripts/network-functions | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysconfig/network-scripts/network-functions b/sysconfig/network-scripts/network-functions index d7915e31..9d6f9366 100644 --- a/sysconfig/network-scripts/network-functions +++ b/sysconfig/network-scripts/network-functions @@ -448,6 +448,10 @@ set_hostname () rsctmp=$(mktemp /tmp/XXXXXX); cat /etc/resolv.conf > $rsctmp echo "search $domain" >> $rsctmp + + # Backup resolv.conf only if it doesn't exist already: + ! [ -f /etc/resolv.conf.save ] && cp -af /etc/resolv.conf /etc/resolv.conf.save + change_resolv_conf $rsctmp /bin/rm -f $rsctmp fi @@ -697,3 +701,32 @@ net_log() fi return 0 } + +update_DNS_entries() +{ + # Remove duplicate values from DNS options if any: + if [ -n "${DNS3}" ] && [[ "${DNS3}" == "${DNS2}" || "${DNS3}" == "${DNS1}" ]]; then + unset DNS3 + fi + + if [ -n "${DNS2}" ] && [[ "${DNS2}" == "${DNS1}" ]]; then + unset DNS2 + fi + + # Shift the DNS options if necessary: + if [ -z "${DNS1}" ] && [ -n "${DNS2}" ]; then + DNS1="${DNS2}" + unset DNS2 + fi + + if [ -z "${DNS2}" ] && [ -n "${DNS3}" ]; then + DNS2="${DNS3}" + unset DNS3 + fi + + # We need to check DNS1 again in case only DNS3 was set at all: + if [ -z "${DNS1}" ] && [ -n "${DNS2}" ]; then + DNS1="${DNS2}" + unset DNS2 + fi +} |