diff --git a/sahara/plugins/ambari/resources/images/centos/unlimited_security_artifacts b/sahara/plugins/ambari/resources/images/centos/unlimited_security_artifacts
index 78f80cc865..bd2e0a778c 100644
--- a/sahara/plugins/ambari/resources/images/centos/unlimited_security_artifacts
+++ b/sahara/plugins/ambari/resources/images/centos/unlimited_security_artifacts
@@ -3,8 +3,8 @@
 if [ ! -d /tmp/UnlimitedPolicy/ ]; then
     if [ $test_only -eq 0 ]; then
         mkdir /tmp/UnlimitedPolicy/
-        wget https://tarballs.openstack.org/sahara-extra/dist/common-artifacts/local_policy.jar -O /tmp/UnlimitedPolicy/local_policy.jar
-        wget https://tarballs.openstack.org/sahara-extra/dist/common-artifacts/US_export_policy.jar -O /tmp/UnlimitedPolicy/US_export_policy.jar
+        curl -sS https://tarballs.openstack.org/sahara-extra/dist/common-artifacts/local_policy.jar -o /tmp/UnlimitedPolicy/local_policy.jar
+        curl -sS https://tarballs.openstack.org/sahara-extra/dist/common-artifacts/US_export_policy.jar -o /tmp/UnlimitedPolicy/US_export_policy.jar
     else
         exit 0
     fi
diff --git a/sahara/plugins/ambari/resources/images/common/add_jar b/sahara/plugins/ambari/resources/images/common/add_jar
index 0360cd68a5..5727a97c83 100644
--- a/sahara/plugins/ambari/resources/images/common/add_jar
+++ b/sahara/plugins/ambari/resources/images/common/add_jar
@@ -10,9 +10,9 @@ HADOOP_SWIFT_JAR_NAME=hadoop-openstack.jar
 if [ ! -f $HDFS_LIB_DIR/$HADOOP_SWIFT_JAR_NAME ]; then
     if [ $test_only -eq 0 ]; then
         if [ -z "${swift_url:-}" ]; then
-            wget -O $HDFS_LIB_DIR/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
+            curl -sS -o $HDFS_LIB_DIR/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
         else
-            wget -O $HDFS_LIB_DIR/$HADOOP_SWIFT_JAR_NAME $swift_url
+            curl -sS -o $HDFS_LIB_DIR/$HADOOP_SWIFT_JAR_NAME $swift_url
         fi
 
         if [ $? -ne 0 ]; then
diff --git a/sahara/plugins/cdh/v5_11_0/resources/images/common/add_jar b/sahara/plugins/cdh/v5_11_0/resources/images/common/add_jar
index 4a1b57e210..1e98b7f100 100644
--- a/sahara/plugins/cdh/v5_11_0/resources/images/common/add_jar
+++ b/sahara/plugins/cdh/v5_11_0/resources/images/common/add_jar
@@ -9,7 +9,7 @@ SWIFT_LIB_URI="$HADOOP_SWIFT_BUILD_LOCATION/hadoop-openstack-${hadoop}.jar"
 HADOOP_SWIFT_JAR_NAME="hadoop-openstack.jar"
 
 if [ $test_only -eq 0 ]; then
-    wget -O $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
+    curl -sS -o $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
 
     if [ $? -ne 0 ]; then
         printf "Could not download Swift Hadoop FS implementation.\nAborting\n"
diff --git a/sahara/plugins/cdh/v5_11_0/resources/images/common/install_extjs b/sahara/plugins/cdh/v5_11_0/resources/images/common/install_extjs
index 39a63cd8d2..6b255f1d8f 100644
--- a/sahara/plugins/cdh/v5_11_0/resources/images/common/install_extjs
+++ b/sahara/plugins/cdh/v5_11_0/resources/images/common/install_extjs
@@ -8,7 +8,7 @@ extjs_archive=/tmp/${extjs_basepath}
 extjs_folder="${extjs_basepath%.*}"
 
 setup_extjs() {
-    wget -O $extjs_archive $EXTJS_DOWNLOAD_URL
+    curl -sS -o $extjs_archive $EXTJS_DOWNLOAD_URL
     mkdir -p $EXTJS_DESTINATION_DIR
 }
 
diff --git a/sahara/plugins/cdh/v5_11_0/resources/images/common/unlimited_security_artifacts b/sahara/plugins/cdh/v5_11_0/resources/images/common/unlimited_security_artifacts
index 5df39005c7..59dc11d642 100644
--- a/sahara/plugins/cdh/v5_11_0/resources/images/common/unlimited_security_artifacts
+++ b/sahara/plugins/cdh/v5_11_0/resources/images/common/unlimited_security_artifacts
@@ -3,8 +3,8 @@
 if [ ! -n /tmp/UnlimitedPolicy/ ]; then
     if [ $test_only -eq 0 ]; then
         mkdir /tmp/UnlimitedPolicy/
-        wget $unlimited_security_location/local_policy.jar -O /tmp/UnlimitedPolicy/local_policy.jar
-        wget $unlimited_security_location/US_export_policy.jar -O /tmp/UnlimitedPolicy/US_export_policy.jar
+        curl -sS $unlimited_security_location/local_policy.jar -o /tmp/UnlimitedPolicy/local_policy.jar
+        curl -sS $unlimited_security_location/US_export_policy.jar -o /tmp/UnlimitedPolicy/US_export_policy.jar
     else
         exit 0
     fi
diff --git a/sahara/plugins/cdh/v5_13_0/resources/images/common/add_jar b/sahara/plugins/cdh/v5_13_0/resources/images/common/add_jar
index 4a1b57e210..1e98b7f100 100644
--- a/sahara/plugins/cdh/v5_13_0/resources/images/common/add_jar
+++ b/sahara/plugins/cdh/v5_13_0/resources/images/common/add_jar
@@ -9,7 +9,7 @@ SWIFT_LIB_URI="$HADOOP_SWIFT_BUILD_LOCATION/hadoop-openstack-${hadoop}.jar"
 HADOOP_SWIFT_JAR_NAME="hadoop-openstack.jar"
 
 if [ $test_only -eq 0 ]; then
-    wget -O $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
+    curl -sS -o $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
 
     if [ $? -ne 0 ]; then
         printf "Could not download Swift Hadoop FS implementation.\nAborting\n"
diff --git a/sahara/plugins/cdh/v5_13_0/resources/images/common/install_extjs b/sahara/plugins/cdh/v5_13_0/resources/images/common/install_extjs
index 39a63cd8d2..6b255f1d8f 100644
--- a/sahara/plugins/cdh/v5_13_0/resources/images/common/install_extjs
+++ b/sahara/plugins/cdh/v5_13_0/resources/images/common/install_extjs
@@ -8,7 +8,7 @@ extjs_archive=/tmp/${extjs_basepath}
 extjs_folder="${extjs_basepath%.*}"
 
 setup_extjs() {
-    wget -O $extjs_archive $EXTJS_DOWNLOAD_URL
+    curl -sS -o $extjs_archive $EXTJS_DOWNLOAD_URL
     mkdir -p $EXTJS_DESTINATION_DIR
 }
 
diff --git a/sahara/plugins/cdh/v5_13_0/resources/images/common/unlimited_security_artifacts b/sahara/plugins/cdh/v5_13_0/resources/images/common/unlimited_security_artifacts
index 5df39005c7..59dc11d642 100644
--- a/sahara/plugins/cdh/v5_13_0/resources/images/common/unlimited_security_artifacts
+++ b/sahara/plugins/cdh/v5_13_0/resources/images/common/unlimited_security_artifacts
@@ -3,8 +3,8 @@
 if [ ! -n /tmp/UnlimitedPolicy/ ]; then
     if [ $test_only -eq 0 ]; then
         mkdir /tmp/UnlimitedPolicy/
-        wget $unlimited_security_location/local_policy.jar -O /tmp/UnlimitedPolicy/local_policy.jar
-        wget $unlimited_security_location/US_export_policy.jar -O /tmp/UnlimitedPolicy/US_export_policy.jar
+        curl -sS $unlimited_security_location/local_policy.jar -o /tmp/UnlimitedPolicy/local_policy.jar
+        curl -sS $unlimited_security_location/US_export_policy.jar -o /tmp/UnlimitedPolicy/US_export_policy.jar
     else
         exit 0
     fi
diff --git a/sahara/plugins/cdh/v5_7_0/resources/images/common/add_jar b/sahara/plugins/cdh/v5_7_0/resources/images/common/add_jar
index 4a1b57e210..1e98b7f100 100644
--- a/sahara/plugins/cdh/v5_7_0/resources/images/common/add_jar
+++ b/sahara/plugins/cdh/v5_7_0/resources/images/common/add_jar
@@ -9,7 +9,7 @@ SWIFT_LIB_URI="$HADOOP_SWIFT_BUILD_LOCATION/hadoop-openstack-${hadoop}.jar"
 HADOOP_SWIFT_JAR_NAME="hadoop-openstack.jar"
 
 if [ $test_only -eq 0 ]; then
-    wget -O $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
+    curl -sS -o $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
 
     if [ $? -ne 0 ]; then
         printf "Could not download Swift Hadoop FS implementation.\nAborting\n"
diff --git a/sahara/plugins/cdh/v5_7_0/resources/images/common/install_extjs b/sahara/plugins/cdh/v5_7_0/resources/images/common/install_extjs
index 39a63cd8d2..6b255f1d8f 100644
--- a/sahara/plugins/cdh/v5_7_0/resources/images/common/install_extjs
+++ b/sahara/plugins/cdh/v5_7_0/resources/images/common/install_extjs
@@ -8,7 +8,7 @@ extjs_archive=/tmp/${extjs_basepath}
 extjs_folder="${extjs_basepath%.*}"
 
 setup_extjs() {
-    wget -O $extjs_archive $EXTJS_DOWNLOAD_URL
+    curl -sS -o $extjs_archive $EXTJS_DOWNLOAD_URL
     mkdir -p $EXTJS_DESTINATION_DIR
 }
 
diff --git a/sahara/plugins/cdh/v5_7_0/resources/images/common/unlimited_security_artifacts b/sahara/plugins/cdh/v5_7_0/resources/images/common/unlimited_security_artifacts
index 5df39005c7..59dc11d642 100644
--- a/sahara/plugins/cdh/v5_7_0/resources/images/common/unlimited_security_artifacts
+++ b/sahara/plugins/cdh/v5_7_0/resources/images/common/unlimited_security_artifacts
@@ -3,8 +3,8 @@
 if [ ! -n /tmp/UnlimitedPolicy/ ]; then
     if [ $test_only -eq 0 ]; then
         mkdir /tmp/UnlimitedPolicy/
-        wget $unlimited_security_location/local_policy.jar -O /tmp/UnlimitedPolicy/local_policy.jar
-        wget $unlimited_security_location/US_export_policy.jar -O /tmp/UnlimitedPolicy/US_export_policy.jar
+        curl -sS $unlimited_security_location/local_policy.jar -o /tmp/UnlimitedPolicy/local_policy.jar
+        curl -sS $unlimited_security_location/US_export_policy.jar -o /tmp/UnlimitedPolicy/US_export_policy.jar
     else
         exit 0
     fi
diff --git a/sahara/plugins/cdh/v5_9_0/resources/images/common/add_jar b/sahara/plugins/cdh/v5_9_0/resources/images/common/add_jar
index 4a1b57e210..1e98b7f100 100644
--- a/sahara/plugins/cdh/v5_9_0/resources/images/common/add_jar
+++ b/sahara/plugins/cdh/v5_9_0/resources/images/common/add_jar
@@ -9,7 +9,7 @@ SWIFT_LIB_URI="$HADOOP_SWIFT_BUILD_LOCATION/hadoop-openstack-${hadoop}.jar"
 HADOOP_SWIFT_JAR_NAME="hadoop-openstack.jar"
 
 if [ $test_only -eq 0 ]; then
-    wget -O $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
+    curl -sS -o $hdfs_lib_dir/$HADOOP_SWIFT_JAR_NAME $SWIFT_LIB_URI
 
     if [ $? -ne 0 ]; then
         printf "Could not download Swift Hadoop FS implementation.\nAborting\n"
diff --git a/sahara/plugins/cdh/v5_9_0/resources/images/common/install_extjs b/sahara/plugins/cdh/v5_9_0/resources/images/common/install_extjs
index 39a63cd8d2..6b255f1d8f 100644
--- a/sahara/plugins/cdh/v5_9_0/resources/images/common/install_extjs
+++ b/sahara/plugins/cdh/v5_9_0/resources/images/common/install_extjs
@@ -8,7 +8,7 @@ extjs_archive=/tmp/${extjs_basepath}
 extjs_folder="${extjs_basepath%.*}"
 
 setup_extjs() {
-    wget -O $extjs_archive $EXTJS_DOWNLOAD_URL
+    curl -sS -o $extjs_archive $EXTJS_DOWNLOAD_URL
     mkdir -p $EXTJS_DESTINATION_DIR
 }
 
diff --git a/sahara/plugins/cdh/v5_9_0/resources/images/common/unlimited_security_artifacts b/sahara/plugins/cdh/v5_9_0/resources/images/common/unlimited_security_artifacts
index 5df39005c7..59dc11d642 100644
--- a/sahara/plugins/cdh/v5_9_0/resources/images/common/unlimited_security_artifacts
+++ b/sahara/plugins/cdh/v5_9_0/resources/images/common/unlimited_security_artifacts
@@ -3,8 +3,8 @@
 if [ ! -n /tmp/UnlimitedPolicy/ ]; then
     if [ $test_only -eq 0 ]; then
         mkdir /tmp/UnlimitedPolicy/
-        wget $unlimited_security_location/local_policy.jar -O /tmp/UnlimitedPolicy/local_policy.jar
-        wget $unlimited_security_location/US_export_policy.jar -O /tmp/UnlimitedPolicy/US_export_policy.jar
+        curl -sS $unlimited_security_location/local_policy.jar -o /tmp/UnlimitedPolicy/local_policy.jar
+        curl -sS $unlimited_security_location/US_export_policy.jar -o /tmp/UnlimitedPolicy/US_export_policy.jar
     else
         exit 0
     fi
diff --git a/sahara/plugins/mapr/resources/images/common/configure_extjs b/sahara/plugins/mapr/resources/images/common/configure_extjs
index 2d46d9d929..976d20797a 100644
--- a/sahara/plugins/mapr/resources/images/common/configure_extjs
+++ b/sahara/plugins/mapr/resources/images/common/configure_extjs
@@ -9,7 +9,7 @@ extjs_archive=/tmp/${extjs_basepath}
 extjs_folder="${extjs_basepath%.*}"
 
 function setup_extjs {
-    wget -O $extjs_archive $EXTJS_DOWNLOAD_URL
+    curl -sS -o $extjs_archive $EXTJS_DOWNLOAD_URL
     mkdir -p $EXTJS_DESTINATION_DIR
 }