During the evening of Wednesday, February 22nd from 9pm that night (through to 6am on Thursday morning) we will be performing upgrades to selected hosting server platforms of Network Presence in Sydney, Australia.
Customers with services (VPS) on the hosting platforms to be upgraded may be emailed advisory notices shortly, and this is a general notice related to other ancillary upgrades and Infrastructure Maintenance being performed during this scheduled window of time.
This Maintenance Window starts from 9pm Sydney time on the evening of Wednesday, February 22nd 2017 through to 6am on the Thursday morning, and I’ll be personally contactable by phone & online during and after these works in-case there’s any issues that arise. During this Maintenance Window, selected network or server equipment will be worked on, upgraded and restarted. Works will be completed as quickly as possible (where possible, timing information will be in emails to affected customers) and restarts are short service interruptions only, while upgrades may incur longer service interruptions.
This will incur outages to selected hosting services of Network Presence in Australia during this off-peak scheduled works period.
In addition, there may be some impact (short 5-10 minute periods) to the general Internet Connectivity of portions of Network Presence in Sydney during these works, though redundant routing will be utilised during these works.
Progress updates during the works will be posted to our Operations Twitter Feed at https://twitter.com/netpresops
FYI and regards,
We’ve confirmed the date for the next Tomcat Administration Training Course that I present via Network Presence here in Adelaide during the week starting April 3rd.
Both Tomcat 7 and 8 the latest TomEE will be covered, with many course segments noting differences and changes between Tomcat 6, 7 & 8.
This is an intensive and highly-technical (requires Linux or Windows System Admin capabilities) hands-on training course run over 3 days, with generous lunch & teas included by ETC. Each student has their own dedicated classroom desktop server, with virtualised local and cloud-based servers for trials, tutorials, testing, and there’s Internet accessible ‘Production’ servers for each student. Both Linux and Windows local and cloud-hosted servers are available to course participants, so if you prefer to work in Windows based systems for your Tomcat Training, then that’s fine.
The broad topics covered in the course are:
+ Tomcat Architecture, including installation and clustering
+ Tomcat Software Components
+ Comparison and Online Discovery of Difference between Tomcat, TomEE, Glassfish, JBoss, Geronimo and WebSphere
+ Trouble Shooting and Admin features
+ Performance and Tuning of both Tomcat & TomEE
+ Common and example Tomcat Web Applications, incl. Liferay, CAS, Hippo, OpenCMS, Enonic, Alfresco, dotCMS and other ‘bundled’ Tomcat systems/distributions.
There’s Tutorial, Trial sessions and an open workflow of subject presentation with multimedia support (electronic course notes supplied), then guided demonstrations and more to give deep understanding and some experience in technical details of Tomcat operations.
FYI and regards,
A compound SSL Certificate product available from some Registrars currently is the “Multi-Domain” Certificate, for up to 3 x domains by default, with more available from there.
To generate the required Key and CSR files to obtain those multi-domain Certificates, OpenSSL command lines like the following can be used:
openssl req -new -newkey rsa:2048 -sha256 -nodes -keyout FILENAME.key -out FILENAME.csr -subj '/C=XX/ST=STATE/L=LOCATION/O=ORGANISATION/OU=ORGUNIT/CN=FIRSTDOMAINNAME/emailAddress=EMAIL@ADDRESS/subjectAltName=DNS.1=SECONDDOMAIN,DNS.2=THIRDDOMAIN'
Additional domains can be added by appending more “,DNS.X=NEXTDOMAINNAME” (where X is from 3 onwards) in the subjectAltName parameter.
For more OpenSSL operations, see our older OpenSSL post.