diff --git a/scripts/init-shard.sh b/scripts/init-shard.sh
index 29e503e..8467b74 100755
--- a/scripts/init-shard.sh
+++ b/scripts/init-shard.sh
@@ -1,14 +1,18 @@
 #!/bin/bash 
 
-mongodb1=`ping -c 1 ${MONGOS} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
+mongodb1=`getent hosts ${MONGOS} | awk '{ print $1 }'`
 
-mongodb11=`ping -c 1 ${MONGO11} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb12=`ping -c 1 ${MONGO12} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb13=`ping -c 1 ${MONGO13} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
+mongodb11=`getent hosts ${MONGO11} | awk '{ print $1 }'`
+mongodb12=`getent hosts ${MONGO12} | awk '{ print $1 }'`
+mongodb13=`getent hosts ${MONGO13} | awk '{ print $1 }'`
 
-mongodb21=`ping -c 1 ${MONGO21} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb22=`ping -c 1 ${MONGO22} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb23=`ping -c 1 ${MONGO23} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
+mongodb21=`getent hosts ${MONGO21} | awk '{ print $1 }'`
+mongodb22=`getent hosts ${MONGO22} | awk '{ print $1 }'`
+mongodb23=`getent hosts ${MONGO23} | awk '{ print $1 }'`
+
+mongodb31=`getent hosts ${MONGO31} | awk '{ print $1 }'`
+mongodb32=`getent hosts ${MONGO32} | awk '{ print $1 }'`
+mongodb33=`getent hosts ${MONGO33} | awk '{ print $1 }'`
 
 port=${PORT:-27017}
 
diff --git a/scripts/setup-cnf.sh b/scripts/setup-cnf.sh
index ba11edb..c3dcc73 100755
--- a/scripts/setup-cnf.sh
+++ b/scripts/setup-cnf.sh
@@ -1,8 +1,8 @@
 #!/bin/bash 
 
-mongodb1=`ping -c 1 ${MONGO1} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb2=`ping -c 1 ${MONGO2} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb3=`ping -c 1 ${MONGO3} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
+mongodb1=`getent hosts ${MONGO1} | awk '{ print $1 }'`
+mongodb2=`getent hosts ${MONGO2} | awk '{ print $1 }'`
+mongodb3=`getent hosts ${MONGO3} | awk '{ print $1 }'`
 
 port=${PORT:-27017}
 
diff --git a/scripts/setup.sh b/scripts/setup.sh
index 2c15cb8..f078bc5 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -1,8 +1,8 @@
 #!/bin/bash 
 
-mongodb1=`ping -c 1 ${MONGO1} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb2=`ping -c 1 ${MONGO2} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
-mongodb3=`ping -c 1 ${MONGO3} | head -1  | cut -d "(" -f 2 | cut -d ")" -f 1`
+mongodb1=`getent hosts ${MONGO1} | awk '{ print $1 }'`
+mongodb2=`getent hosts ${MONGO2} | awk '{ print $1 }'`
+mongodb3=`getent hosts ${MONGO3} | awk '{ print $1 }'`
 
 port=${PORT:-27017}