diff --git a/config_files/.zshrc b/config_files/.zshrc
index 168ddad..4f0b6d5 100644
--- a/config_files/.zshrc
+++ b/config_files/.zshrc
@@ -208,3 +208,9 @@ export NVM_DIR="$HOME/.nvm"
 . "$HOME/.asdf/asdf.sh"
 . "$HOME/.asdf/completions/asdf.bash"
 export EDITOR="code --wait"
+
+# for openJDK
+#export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
+export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
+export PATH=$JAVA_HOME/bin:$PATH
+
diff --git a/tutos/computer.txt b/tutos/computer.txt
index 371ccd8..4bb5030 100644
--- a/tutos/computer.txt
+++ b/tutos/computer.txt
@@ -392,4 +392,22 @@ find | sort | grep -ve "node_modules/" -e ".git/" | sed 's#[^/]*/#|__ #g;s#__ |#
 		- remote logging
 		- firewall
 
+	- **ipmi / idrac6 : connect to the server as if **
+		- connect to ipmi (enter the ip adress of the internet connection, not the one of the server)
+		- in the idrac interface, go to the console and click on 'launch virtual console'
+			-> it will download a viewer.jnlp file
+		- open this file with java :
+			- you can use a python script that does the jobs well
+				- the script can be found here : **https://gist.github.com/TheJJ/2394cd76d3e2c34d02e3da1bd3e489b2?ref=blockdev.io**
+			- or you can try to open this file with java (last time I didn't succeed)
+				- install java 8 (it might works better with idrac6) : **sudo apt-get install openjdk-8-jre**
+				- install javaws : **sudo apt install icedtea-netx**
+				- run **javaws viewer.jnlp(blablabla)**
+				- i also needed to change the security file otherwise it wouldn't open the files because 'jar are not signed' :
+					- either do it manually : in **/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security**, change lines:
+						- **jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024...** to remove 'md5'
+						- **jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024...**
+					- alternatively you can have a local override, see **https://gist.github.com/xbb/4fd651c2493ad9284dbcb827dc8886d6**
+						- this is a tutorial, it uses a local java engine (jre) just installed in the folder, and/or a local file to override the security settings
+				- also, if needed to modify the java control panel, open it with : **/usr/bin/itweb-settings**