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add dns.sh

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Zeno Zeng 2014-09-18 22:24:55 +08:00
parent b6a2f0fd33
commit 182ac5ffce
1 changed files with 23 additions and 0 deletions
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##################################
#
# DNS Helper
#
##################################
function zju_test_and_set_up_dns() {
until [ -z "$1" ]
do
dig baidu.com @$1 +time=1 > /dev/null && echo "$1 ... ok" && echo "nameserver $1" > /etc/resolv.conf && break
echo "$1 ... fail"
shift
done
}
# 浙大的DNS不是很稳定，这里列了备用方案
# 官方 > 10.12.10.12 > Senorsen DNS > RQ Lab > ALI YUN
zju_test_and_set_up_dns \
10.10.0.21 10.10.0.22 10.10.0.23 \
10.12.10.12 \
10.76.8.111 \
10.202.68.222 \
223.5.5.5 223.6.6.6