Screen sharing

TimL • 2024/09/27

To get screen sharing support from Vialect please any of

Or send us a link to

Currently not working:

Microsoft Teams [CoreError::LAYOUT_ERROR][Error::Cannot return null for non-nullable field AuthenticationUserProfile.upn.]

Update HTTPS

TimL • 2024/01/23

If certbot from Let's Encrypt is not used certificates will need to be updated annually.

Download the signed public key from your Certificate Authorities (CA)
Import the signed public key into the keystore already containing the private key (and intermediate certificates if required)

keytool -import -alias noodle.domain.tld -trustcacerts -file noodlecert.crt -keystore noodle.pfx

Restart the Noodle service

In memory

TimL • 2023/11/13

Add the following to the Host tag in server.xml

<Context docBase="ROOT" override="true">
    <Resources cachingAllowed="true" cacheMaxSize="100000"/>
</Context>

Add the following to multiserver or intranet.bat

-Xmx1000m -Xms1000m -XX:+UseG1GC

Low memory

TimL • 2022/08/05

Add the following to the Host tag in server.xml

<Context docBase="ROOT" override="true">
    <Resources cachingAllowed="false" />
</Context>

Add the following to multiserver or intranet.bat

-Xmx50m -Xms50m -XX:+UseG1GC

Redirect to SSO

TimL • 2022/03/24

Put the following in the MOTD file:

<script>
    if (location.href.indexOf("?") < 0) {
        location.href = location.href.replace(/(https?:\/\/[^\/]+)(\/.*)?/, "$1/SPNEGO.po");
    }
</script>

The same can be done for SAML.po

Safari mobile desktop mode

TimL • 2021/10/20

Safari mobile 15+ uses desktop mode by default, if desired disable it in;

Settings > Safari > Request Desktop Website > Off

Java Application Servers

TimL • 2021/07/12

Wikipedia has a list. Comments on the popular options;

Apache - Tomcat (most popular)
Eclipse - Jetty (small and fast)
Eclipse - GlassFish (heavy)
Payara - Payara
Red Hat - WildFly / JBoss EAP

Micro services; fast start with native executables via GraalVM;

Red Hat - Quarkus
Micronaut - Micronauts

Specifications at jakarta.

Excel Date Time Examples

TimL • 2021/04/06

To display timestamps exported from Noodle to csv files in Microsoft Excel, format the column as custom with this pattern;

yyyy-mm-dd hh:mm:ss.000

To show just the date one of these formulae can be used;

=DATE(YEAR(B2),MONTH(B2),DAY(B2))
=CONCAT(YEAR(B2),"-",MONTH(B2),"-",DAY(B2))

To show just the time one of these formulae can be used;

=TIME(HOUR(B2),MINUTE(B2),SECOND(B2))
=CONCAT(HOUR(B2),":",MINUTE(B2),":",SECOND(B2))

Like all formula the above examples can be applied to whole columns by copy pasting, dragging, or double clicking.

Note that Microsoft Excel does not respect original formatting so any save (without any edit) can convert a timestamp into a number representing seconds since epoch.

letsencrypt DNS

TimL • 2021/02/26

cert.sh

certbot renew --quiet --manual --preferred-challenges dns \
--manual-public-ip-logging-ok \
--manual-auth-hook cert_dns.sh \
--deploy-hook cert_deploy.sh

cert_dns.sh

ssh $DNS "nsupdate <( echo \"server 127.0.0.1
update delete _acme-challenge.$CERTBOT_DOMAIN.
update add _acme-challenge.$CERTBOT_DOMAIN. 3600 TXT $CERTBOT_VALIDATION
send
quit\" )"
sleep 10

See letsencrypt for other options.

Alpine standard 3 install example

TimL • 2021/01/14

sed -i -e 's/#\(.*[0-9]\/com\)/\1/g' /etc/apk/repositories
apk update
apk add openjdk11 postgresql postgresql-contrib
service postgresql start

#Noodle
cd /opt
tar -xf Noodle.tar.gz
cd Noodle
su postgres -c 'cd;psql --file /opt/Noodle/init.sql'
mv noodle.openrc /etc/init.d/noodle
service noodle start

Other Linux Installation examples available.