diff --git a/etc.hosts b/etc.hosts
index 248d690..2e674d7 100644
--- a/etc.hosts
+++ b/etc.hosts
@@ -196,6 +196,10 @@
 10.243.13.41 4.hu.r
 42:0:a46e:982c:ffd3:d21b:4846:9c85 hu.r
 42:0:a46e:982c:ffd3:d21b:4846:9c85 6.hu.r
+10.243.54.54 hydrogen.r
+10.243.54.54 4.hydrogen.r
+42:0:3c46:7e83:e7f9:b03:1036:3d69 hydrogen.r
+42:0:3c46:7e83:e7f9:b03:1036:3d69 6.hydrogen.r
 10.243.133.114 icarus.r
 10.243.133.114 4.icarus.r
 42:0:ce16::1205 icarus.r
diff --git a/hosts/hydrogen b/hosts/hydrogen
new file mode 100644
index 0000000..01f25ed
--- /dev/null
+++ b/hosts/hydrogen
@@ -0,0 +1,17 @@
+Subnet = 10.243.54.54
+Subnet = 42:0:3c46:7e83:e7f9:b03:1036:3d69
+
+-----BEGIN RSA PUBLIC KEY-----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==
+-----END RSA PUBLIC KEY-----
+