diff --git a/ubuntu-18.04/Dockerfile b/ubuntu-18.04/Dockerfile
index 9a6bb69703352ec0400a720bbcba4de49c86ca15..8c08985dcb1a03388402a79c3392e42ef66c7ac1 100644
--- a/ubuntu-18.04/Dockerfile
+++ b/ubuntu-18.04/Dockerfile
@@ -149,6 +149,9 @@ ADD mxnet_profile.sh /etc/profile.d/mxnet.sh
 COPY launch.sh /sbin
 COPY sshd_config /etc/ssh/sshd_config
 
+ADD agki-nas01.imp.fu-berlin.de-ca-cert.crt /usr/local/share/ca-certificates/agki-nas01.imp.fu-berlin.de-ca-cert.crt
+RUN update-ca-certificates
+
 RUN apt-get clean
 
 WORKDIR "/root"
diff --git a/ubuntu-18.04/agki-nas01.imp.fu-berlin.de-ca-cert.crt b/ubuntu-18.04/agki-nas01.imp.fu-berlin.de-ca-cert.crt
new file mode 100644
index 0000000000000000000000000000000000000000..7f84fd5a7d56da924725a070de4d394ee3abe8e2
--- /dev/null
+++ b/ubuntu-18.04/agki-nas01.imp.fu-berlin.de-ca-cert.crt
@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----