diff --git a/README.md b/README.md
index 5029e43..21782e2 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@ Tools for use in supporting the operation of Satellite 6
- [postgres-activity-report](#postgres-activity-report)
- [production-log-load-stats](#production-log-load-stats)
- [check-pulp-msg](#check-pulp-msg)
+- [check-cdn-connection](#check-cdn-connection)
+
## [check-perf-tuning](check-perf-tuning)
@@ -135,3 +137,131 @@ Sat May 1 15:17:05 EDT 2021
resource_manager@satellite.example.com.celery.pidbox Y 0 0 0 0 0 0 1 2
resource_manager@satellite.example.com.dq2 Y 0 0 0 0 0 0 1 2
```
+
+
+## [check-cdn-connection](check-cdn-connection)
+
+This script can be executed by the customer in a RHEL system registered and with the entitlement/subscription assigned. Based on that, the server will try to reach some CDN links based on the entitlements already assigned to it.
+
+There is a help that will be as below
+```
+# ./check-cdn-connection.sh -h
+./check-cdn-connection.sh to check the first 5 urls of each entitlement
+To see in details, execute ./check-cdn-connection.sh --verbose
+```
+
+If you just execute the command, the output will be as below
+```
+# ./check-cdn-connection.sh
+Found some entitlements
+Entitlement: 2228110793913314193.pem
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/ppc64le/3scale-amp/2/debug
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/ppc64le/3scale-amp/2/os
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/ppc64le/3scale-amp/2/source/SRPMS
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/3scale-amp/2/debug
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/3scale-amp/2/os
+Entitlement: 286675752367182767.pem
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/3scale-amp/2/debug
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/3scale-amp/2/os
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/3scale-amp/2/source/SRPMS
+PASS,https://cdn.redhat.com/content/beta/layered/rhel8/x86_64/advanced-virt/debug
+PASS,https://cdn.redhat.com/content/beta/layered/rhel8/x86_64/advanced-virt/os
+```
+Note. Here we are checking for `repodata` dir on some URL and also `repomd.xml` file. The PASS information will be present ONLY if both information are present.
+
+If you would like to see more information about the query, normally, it will be necessary when the connection is failing, we can pass the flag `--verbose`, and the output will be as below
+```
+# ./check-cdn-connection.sh --verbose
+Found some entitlements
+Entitlement: 2228110793913314193.pem
+PASS,https://cdn.redhat.com/content/dist/layered/rhel8/ppc64le/3scale-amp/2/debug
+===
+
+
+
+ Index of /67570/rcm/content/dist/layered/rhel8/ppc64le/3scale-amp/2/debug
+
+
+Index of /67570/rcm/content/dist/layered/rhel8/ppc64le/3scale-amp/2/debug
+ Name Last modified Size
+
+![[DIR]](/icons/dir.gif)
Parent Directory 01-Jan-1970 00:00 -
+ Packages/ 14-Oct-2021 06:00 -
+ repodata/ 14-Oct-2021 06:00 -
+
+
+---
+
+
+ 1634191208
+
+ e3abf4a576e4d8a4e4b5063695e1875a8b5e6cf54fd59656836bf58893664dd1
+ f70c5d27a93cd61a6b9c53f8ea211c5cc7297a446002b1dd0a07d83b405a8ef8
+
+ 1634191208
+ 2739
+ 18819
+
+
+ 7da945a60e61e1eb277d88b63e7b74137659dd4c47c4f73265f79729392a7277
+ 0219049a94863a04767e8f93f7613c41f6d9333b02ba06e2db58e3b9c5da8558
+
+ 1634191208
+ 7745
+ 131735
+
+
+ de7ec5f1a2e9f991e68fbb19f9bc0fe9326eb289b83f42b0aefdc730297f3c5e
+ ca4d94ba9eed892aa0d5eebf8ec11076436f8170cee15683a328f829f4b59727
+
+ 1634191208
+ 3034
+ 33364
+
+
+ 94b16fe32eaa308f6ae51313ac3a39401253bf9c09ad894d44dec5670a6a5a9e
+ 8b50f9cfd5b458b92fa7341f252d9539ee7ed33c4b4fee897133e21678861b17
+
+ 1634191208
+ 5321
+ 47104
+ 10
+
+
+ 950cd7c2ebecdab6fc025fb038c7f2be6de21eea518e7e270c565c7e3ad61ef6
+ f5e4e7cee90b5ca482308ba894a4cf3ce54d3c7d7d049b31e09f88ddad1b7b5a
+
+ 1634191208
+ 11775
+ 60416
+ 10
+
+
+ fd1e4c678c7e951d71cdcced245779b42c02bd1451d5f172809694f3e6fbe7c9
+ 69dbd7e0c1059f8197441e2f3f64df0eea8d9e662de88f5866acf4534babe568
+
+ 1634191208
+ 6765
+ 30720
+ 10
+
+
+ a27718cc28ec6d71432e0ef3e6da544b7f9d93f6bb7d0a55aacd592d03144b70
+
+ 1634191208
+ 124
+
+
+ fc08b27f5bd450523469354967258c278ace0c4d4c93daa8bbcf19dfb556a199
+ aedbbb19df839fa56baf8e1c16a7081709408068d6bc5fb55b0aebad4f26742a
+
+ 1634191208
+ 1657
+ 5521
+
+
+===
+...
+```
+
+Note. From this check, we are skipping all the repos that have `$releasever`.
\ No newline at end of file
diff --git a/check-cdn-connection.sh b/check-cdn-connection.sh
new file mode 100755
index 0000000..ca8301e
--- /dev/null
+++ b/check-cdn-connection.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+#
+# Delevoper .....: Waldirio M Pinheiro |
+# Date ..........: 12/24/2021 (Merry Xmas)
+# Purpose .......: To check the connectivity with CDN using the local/installed
+# entitlements.
+# License .......: GPL
+#
+
+
+CA_CERT="/etc/rhsm/ca/redhat-uep.pem"
+ENTITLEMENT_DIR="/etc/pki/entitlement"
+RCT="/usr/bin/rct"
+CURL="/usr/bin/curl -s"
+PRE="https://cdn.redhat.com"
+NUM_OF_URL_TO_CHECK=5
+
+
+if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
+ echo "$0 to check the first $NUM_OF_URL_TO_CHECK urls of each entitlement"
+ echo "To see in details, execute $0 --verbose"
+ exit
+fi
+
+if [ "$1" == "--verbose" ]; then
+ VERBOSE=1
+else
+ VERBOSE=0
+fi
+
+pem_files_count=$(ls $ENTITLEMENT_DIR | wc -l)
+
+if [ $pem_files_count -eq 0 ]; then
+ echo "Please, assing some subscription"
+ echo "exiting ...."
+ exit
+else
+ echo "Found some entitlements"
+
+ pem_files=$(ls $ENTITLEMENT_DIR | grep -v "\-key")
+ for b in $pem_files
+ do
+ key_cert=$(echo $b | sed "s/.pem/-key.pem/g")
+ url_list=$($RCT cat-cert $ENTITLEMENT_DIR/$b | grep URL: | awk '{print $2}' | grep -v "\$release" | head -n $NUM_OF_URL_TO_CHECK)
+
+ echo "Entitlement: $b"
+ for url in $url_list
+ do
+ #echo "$b,$url_list"
+ #echo "$CURL --cacert $CA_CERT --cert $ENTITLEMENT_DIR/$b --key $ENTITLEMENT_DIR/$key_cert $PRE$url_list"
+ curl_command=$($CURL --cacert $CA_CERT --cert $ENTITLEMENT_DIR/$b --key $ENTITLEMENT_DIR/$key_cert $PRE$url)
+ curl_cmd_repomd=$($CURL --cacert $CA_CERT --cert $ENTITLEMENT_DIR/$b --key $ENTITLEMENT_DIR/$key_cert $PRE$url/repodata/repomd.xml)
+
+ check_repodata=$(echo "$curl_command" | grep repodata | wc -l)
+ check_repomd=$(echo "$curl_cmd_repomd" | wc -l)
+
+ if [ $check_repodata -eq 1 ] && [ $check_repomd -ne 1 ]; then
+ echo "PASS,$PRE$url"
+ if [ $VERBOSE -eq 1 ]; then
+ echo "==="
+ echo "$curl_command"
+ echo "---"
+ echo "$curl_cmd_repomd"
+ echo "==="
+ fi
+ else
+ echo "FAIL,$PRE$url"
+ if [ $VERBOSE -eq 1 ]; then
+ echo "==="
+ echo "$curl_command"
+ echo "---"
+ echo "$curl_cmd_repomd"
+ echo "==="
+ fi
+ fi
+ done
+ done
+fi