ilo-console.sh

#!/bin/bash

address=https://ilo.mysite.com:34043
username=Administrator
password=********

session_key=$(
  curl -fsS \
    --insecure \
    "$address/json/login_session" \
    --data "{\"method\":\"login\",\"user_login\":\"$username\",\"password\":\"$password\"}" |
      sed 's/.*"session_key":"\([a-f0-9]\{32\}\)".*/\1/'
) || {
  echo "Error retrieving session key" >&2
  exit 1
}

jnlp=$(mktemp)

cat >"$jnlp" <<eof
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="$address/" href="">
<information>
    <title>Integrated Remote Console</title>
    <vendor>HPE</vendor>
    <offline-allowed></offline-allowed>
</information>
<security>
    <all-permissions></all-permissions>
</security>
<resources>
    <j2se version="1.5+" href="http://java.sun.com/products/autodl/j2se"></j2se>
    <jar href="$address/html/intgapp_228.jar" main="false" />
</resources>
<property name="deployment.trace.level property" value="basic"></property>
<applet-desc main-class="com.hp.ilo2.intgapp.intgapp" name="iLOJIRC" documentbase="$address/html/java_irc.html" width="1" height="1">
    <param name="RCINFO1" value="$session_key"/>
    <param name="RCINFOLANG" value="en"/>
    <param name="INFO0" value="7AC3BDEBC9AC64E85734454B53BB73CE"/>
    <param name="INFO1" value="17988"/>
    <param name="INFO2" value="composite"/>
</applet-desc>
<update check="background"></update>
</jnlp>
eof

nohup sh -c "$HOME/Applications/jre-8/bin/javaws -wait $jnlp; rm $jnlp" >/dev/null 2>&1 &

This script is still working great.

My client triggered this script is macOS Catalina 10.15.4.
iLO4 version on my HP Microserver Gen8 is 2.73 Feb 11 2020. Just upgraded it when trying this.
Then I have made some minor modifications to fit this code into my machine.

First off, followed by new iLO-jirc.jnlp, I've replaced line 33.
<jar href="$address/html/intgapp4_231.jar" main="false" />

Then, based on the folder, where javaws is located, I've updated line 47:
nohup sh -c "/usr/bin/javaws -wait $jnlp; rm $jnlp" >/dev/null 2>&1 &

Boom. all sorted.
Thanks for sharing this awesome code vbezhenar!

Awesome, thanks!

Also had to change the address of the .jar file, which I found through the making the following request manually:

curl -v --insecure "$address/html/java_irc.html?sessionKey=$session_key&lang=en"

@karlsenpark, @mfaerevaag: I create a slightly more user-friendly version and doesn't hardcode params. Should work with both iLO 3 & 4.

https://gist.github.com/kiler129/904fe463b008e740315c4abaf33c68af