Citrix

New - NetScaler Gateway (Maintenance Phase) Plug-ins and Clients for Build 12.0-60.9

Netscaler Gateway downloads - Thu, 12/20/2018 - 18:30
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Components for NetScaler Gateway 12.0

Netscaler Gateway downloads - Thu, 12/20/2018 - 18:30
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Components for NetScaler Gateway 12.0

Netscaler Gateway downloads - Thu, 12/20/2018 - 18:30
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - NetScaler Gateway (Maintenance Phase) 12.0 Build 60.9

Netscaler Gateway downloads - Thu, 12/20/2018 - 18:30
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - NetScaler Gateway (Maintenance Phase) Plug-ins and Clients for Build 12.0-60.9

Netscaler Gateway downloads - Thu, 12/20/2018 - 18:30
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

Product Releases – Soft is OK but don’t be Squidgy

Rachel Berrys Virtually Visual blog - Mon, 12/17/2018 - 11:33
What is a soft product launch?

Wikipedia has a definition of a soft product launch – here; which says: “A soft launch is the release of a website, hotel, or other Product (business) or service to a limited audience. Soft-launching is a method for gathering data on a product’s usage and acceptance in the marketplace, before making it generally available as a hard launch or grand opening. Companies may choose a soft launch to test the viability of a product or to fine-tune a product before implementing a larger marketing effort.”

Note this says – “limited audience”, “gathering data”, “test the viability”, “fine-tune” etc…. later on elaborated on “a small release being made to a limited group of individuals for beta testing.

Often soft launches take the form of “unsupported features” or “early access programs”. In my experience though I have seen a lot of something which I’m going to call “squidgy launches”.

What is a “squidgy” launch?

A squidgy launch is something where the product is released to the whole audience and market but a lot of the information and marketing around it is held back for a grand announcement at a big corporate event or to tie in with a product or financial announcement. The product surreptitiously appears as a new version on an Akamai or similar download site, available for the mass user base to download. This is typically because there isn’t a high-profile announcement opportunity and/or the product can’t be delayed until there is one because of financial constraints (revenue recognition, customer commitment), other product dependencies (i.e. it _has_ to be released in this release to allow another product to release, there’s no other release vehicle before the big show or because of a commitment to certain customers or sales).

Soft launches can be really useful

As a Product Manager, soft launches can be incredibly useful in many ways:

  • Quality control
  • Testing the viability
  • Getting quality feedback from selected customers
But I’m not a fan of “Squidgy” launches

These are technically full product releases, of the technical bits, but missing a lot of the overall _product_ whether that’s doc, feedback mechanisms and marketing explaining the positioning of the feature/product.

There is now this thing called the INTERNET…. if you haven’t heard of it…. It’s a mechanism by which your customers and partners can communicate directly with each other, cutting you out of the conversation. It also gives all those folk interested in your product a mechanism to broadcast whatever message they think is suitable about your product and a way of filling any “voids”.

Typically, a product will have a large number of independent consultants, partners, bloggers, channel partners and analysts with a significant interest in your product, keen to blog, tweet and communicate about it as soon as possible. These folk often have a strong vested interest in filling any information voids left by a launch to establish themselves as the de-facto expert in the field on _your_ product, to answer their customer inquiries when those customers get wind of a new release and to pick up traffic from google searches to their own company and personal websites and blogs, from searches like “is new product version xxx compatible with product yyy”, “should I upgrade to product version ddd.fff”.

It’s not unusual for a product manager/solution architect to get an email enquiry about something not well-documented/obscure and subsequently see the reply repackaged by an internet expert on their own blog! The illusion is convincing but the only real expertise is a knowledge of who to ask alongside cut-n-paste.  This also means that potential traffic, leads and customer conversations are diverted away from your own website.

Additionally, once the sales, marketing departments have negotiated a “squidgy” launch it can have the effect of refocusing deadlines and efforts on the “real”, “hard” launch. So much of the material is not actually available even internally let alone publicly when the product actually becomes available.

Freelancers: Couriering laptops safely and why separating client hardware from your clean underwear supply is a good thing…

Rachel Berrys Virtually Visual blog - Mon, 12/17/2018 - 11:24

From an article I published on LinkedIn: https://www.linkedin.com/pulse/freelancers-couriering-laptops-safely-why-separating-client-berry/

Sending Laptops by courier. As a freelancer in the UK, I’m increasingly finding clients prefer to issue me with a laptop they have configured, dedicated to just their work, which means I’m always having to triple check if I have the right laptops with me and I’ve got to buy a new laptop bag as the current one has split as a result of optimistically cramming three in it when probably designed for one – oops!

BUT it also means I’m frequently sending/collecting laptops to/from base by motorcycle courier (some don’t trust postal couriers) or FedEx/DHL etc. This process puts some legal obligations on the sender, sometimes me and sometimes the company/organisation and there are a few things to be aware of.

Insurance

Usually for me the client pays and if they are underinsured it is their problem but occasionally it’s my responsibility. Things that I would be aware of and clear up with the client / contractor in writing include:

·       Insurance value; often this is the customs value of the hardware at present day value – this is what you will get if it falls of the back of a lorry; are you underinsured?

·       Insurance liability – unless you specifically arrange it most shipping contracts do not cover indirect loss e.g. if that laptop has your customer database on it and it falls into a competitor’s hands the courier is only on the hook for the hardware costs.

If the client expects you to ship and reclaim, it is probably wise to get written instruction from them on the exact details of the shipping conditions they desire.

Hazardous Labelling

Laptops usually contain Lithium Ion batteries. Although a rare occurrence, they do occasionally spontaneously combust and for the couriers’ staff protection – legally have to be labelled as hazardous and often declared as such in advance on the paperwork (I’ve had some clients not realise that technically a laptop is hazardous). Here’s a frightening CCTV recording from an office in Letchworth, UK where a laptop set fire to a plastics factory.

The best scenario is that you ship hardware around in its original box. Unfortunately, it’s fairly common for the original box to have long since gone to the big recycling centre in the Sky (probably Peterborough). To work around this, I have luckily found a local company who gets through a lot of laptops and when I need a box I just ask them – figuring the hazard labels for a similar laptop should suffice.

The main DHL “Guide to Shipping Dangerous Goods” web pages are a super source of information. The include a summary of shipper’s responsibilities with this key phrase:

·       The shipper is responsible for declaring, packaging and labelling Dangerous Goods. DHL Express will accept Dangerous Goods but with certain restrictions for the different products & services offered and only under certain conditions.

This is where it gets a bit grey for me and I could do with investigating further, often a client will submit the paperwork and my role is putting it in a box and handing it to a courier who turns up at the door. I generally don’t get instructions from the client so it’s a bit vague to me if I’m the shipper or the person filling in the courier forms.

Hazardous Labelling in the UK is changing Dec 2018

In 2017 the regulation on labelling Lithium Ion batteries changed. UK company, Hibiscus PLC have an excellent overview.

Many of the big couriers are very clued up (vs your dodgy bloke in a van like outfit) and luckily I generally only deal with them. DHL have a very good website covering shipping regulation including hazard labelling for Lithium Ion batteries, see here.

The DHL site notes this:

·       As of January 1, 2018 new rules have been introduced for packages containing lithium batteries that are packed and shipped as individual items (loose/bulk), in accordance with Section IA, IB and II of packing instruction 965 or 968.

·       The Class 9 Miscellaneous Dangerous Goods hazard label can still be used, as part of the transitional period, until the end of December 2018 for packages containing lithium batteries prepared in accordance with Section I, IA or IB of the lithium battery packing instructions.

Having investigated – those second hand laptop boxes often seem to have a Class 9 label so using the original box may not suffice. Another one I will have to think about. Thankfully most major couriers have a dangerous goods helpline (often called the Restricted Commodities Group).

There is plenty advice and opportunity to buy the correct hazard labels online. A google on “lithium ion battery warning label” should suffice. Typically laptops fall under the “contained within” regulation UN3481 (FedEx have some good info) .

Basically if in doubt – ask whoever is arranging the courier to specify the exact contents of the shipment and ask the Courier for appropriate labelling.

International Shipping

It gets even more complicated particularly if the insured value doesn’t match the tax man’s opinion and the laptop gets impounded, but a good courier can talk you through the options. Including anything else in the shipment can also cause impoundment, as a dear friend found when he decided to ship a spare pair of underpants and tube of toothpaste to save on hand-luggage… keep your hardware shipment processes separate from your knicker supply is all the advice I can offer! The rules on shipping Lithium batteries are even more stringent if air freight is involved.

VAT on components such as GPUs

Because of the fields I work in occasionally I handle/test GPUs mostly shipped from abroad. The VAT custom rules are pretty strict and if a card ends up in a retail use or as a sales demo enabler the higher rates are payable; if a card is shipped for R&D or marketing purposes e.g. to a blogger who isn’t going to buy just to write about a lower rate applies. This can cause all sorts of confusion and issues if a card ends up being repurposed and nobody is clear who is on the hook for the VAT. As a freelancer, check the paperwork and make sure the designated use is correct and VAT paid (preferably by someone else) and keep yourself away from tax evasion.

Other best practices when sending freelancers laptops

Some clients are quite good at sensible dos/don’t and you may want to consider

·       Stickers with your company logo identify the hardware and likely whose data is on it making your staff/contractors targets for opportunist overheard conversations or thefts. If a corporate laptop gets left on a train it is instantly identifiable to a dishonest person as to whose data is on it.

·       Labelling machines with their network names renders hiding them on untrusted networks a bit pointless

·       Some clients ship lockable laptop bags – some branded / some unbranded (see above on logo stickers), I’m particularly keen on the unbranded lockable rucksacks when travelling on the London tube/subway.

·       I’d estimate that 80% of my clients have moved to locked down encrypted hard disks, so even if the laptop goes walkies it’s not possible to extract data from the hard disk. If the laptop might have sensitive customer or client data on it is probably the best option. Usually on boot you’ll have to type in a password to access the encrypted disk and then the OS will boot and you use your normal windows password to access the OS.

·       There’s a Citrix employee blog with an anecdote of how he left a laptop on a tram in Amsterdam which then fell into competitive hands containing sensitive data, including confidential project details and sales databases. A good read on how human failure can be the weak point in security.

·       Freelancers probably should consider including a section in their contracts regarding laptop failure and return to base/for repair processes. Contractor laptops seem to be less reliable than most, or are the hardware equivalent of a 1987 Mini Metro (I guess like rental cars they’ve borne the brunt of travel and numerous drivers) and there are a lot of questions you need to know the second a client’s hardware fails – how do you carry on working, how do you get a replacement/repair, do you get paid if can’t work etc

 

 

Upgrading Ubuntu 16.04 to 18.04 & PHP 7.0 to 7.2 for WordPress

Helge Klein - Wed, 12/12/2018 - 00:28

This post describes how I upgraded our webserver running WordPress on Apache from Ubuntu 16.04.5 LTS to 18.04.1 LTS. Please see this article for more information on the server’s installation and configuration.

Backup

Before you begin, create a checkpoint (snapshot) in Hyper-V Manager. If anything goes wrong, a checkpoint makes it trivially easy to get back to the last working state.

Installing all Available Updates sudo apt-get update sudo apt-get dist-upgrade sudo apt-get autoremove

Reboot and check Apache’s error log:

sudo shutdown -r now tail /var/log/apache2/error.log Upgrading to Ubuntu 18.04.1 sudo do-release-upgrade

During the upgrade process:

  • When asked whether to install the updated version of /etc/sysctl.conf, select “yes”
  • When asked whether to install the updated version of /etc/apache2/apache2.conf, select “no”
  • When asked whether to install the updated version of /etc/logrotate.d/apache2, select “yes”
  • When asked whether to install the updated version of /etc/ssh/sshd_config, select “keep the local version”
  • When asked whether to install the updated version of security.conf, select “no”
18.04 Upgrade Package Changes Packages no Longer Supported
  • ntp
  • tcpd

You may want to uninstall these packages once the upgrade is finished by running the commands:

sudo apt-get remove ntp sudo apt-get remove tcpd sudo apt-get autoremove Removed Packages
  • curl
  • systemd-shim
  • libapache2-modsecurity
Upgrade PHP Package Name Changes

In the upgrade from Ubuntu 16.04 to 18.04 the PHP version is upgraded from 7.0 to 7.2, which is a good thing. What is not so great is that the names of all the PHP packages change from php7.0-* to php7.2-*. Due to that name change, Apache’s PHP configuration is broken after the upgrade and must be fixed manually.

Additionally, the upgrade routine is not clever enough to upgrade any manually installed PHP packages. The 7.0 versions of the following packages are uninstalled instead of replacing them with their 7.2 versions:

  • php7.0-curl
  • php7.0-gd
  • php7.0-json
  • php7.0-mbstring
  • php7.0-mcrypt
  • php7.0-mysql
  • php7.0-opcache
  • php7.0-tidy
  • php7.0-xml
  • php7.0-xmlrpc
  • php7.0-cli
  • php7.0-common
  • php7.0-readline
Migrating from PHP 7.0 to PHP 7.2 Apache Configuration

Enable the PHP 7.2 module:

sudo a2enmod php7.2 sudo service apache2 restart Installing Missing PHP 7.2 Modules sudo apt-get install php7.2-mysql php7.2-curl php7.2-gd php7.2-json php7.2-mbstring php7.2-opcache php7.2-tidy php7.2-xml php7.2-xmlrpc sudo apt-get autoremove sudo service apache2 restart

Note: mcrypt is not available any more with PHP 7.2.

PHP 7.2 Hardening and Optimization

Edit /etc/php/7.2/apache2/php.ini:

Add the following to disable_functions: exec,system,shell_exec,passthrough

Configure PHP’s opcache by setting:

opcache.enable=1 opcache.memory_consumption=256 opcache.interned_strings_buffer=10 opcache.max_accelerated_files=10000

Restart Apache:

sudo service apache2 restart Fixing PHP Errors PHP Warning “Illegal string offset”

Cause: a string variable is used like an array, e.g.:

$var[index] = "value";

Fix it by adding an array check:

// DATE PHP 7.2 compat: added check if $var actually is an array if (is_array ($var)) $var[index] = "value"; Removing Obsolete PHP Directories

Clean up remainders from earlier migrations:

sudo rm -r /etc/php5 sudo rm -r /etc/php/7.0 Adjusting the Logrotate Configuration

Edit /etc/logrotate.d/apache2 so that it says:

rotate 30 dateext Re-enabling the mod_pagespeed Repository

This was disabled during the upgrade.

sudo rm /etc/apt/sources.list.d/mod-pagespeed.list sudo mv /etc/apt/sources.list.d/mod-pagespeed.list.distUpgrade /etc/apt/sources.list.d/mod-pagespeed.list Checking for errors

Check Apache’s error log:

tail /var/log/apache2/error.log

The post Upgrading Ubuntu 16.04 to 18.04 & PHP 7.0 to 7.2 for WordPress appeared first on Helge Klein.

Microsoft Ends 2018 With Failed Windows Update

Theresa Miller - Tue, 12/11/2018 - 06:30

Many home users of Microsoft products almost take for granted their Windows Update will operate correctly.  For those of you keeping score, Microsoft pulled the Windows Update from October 2018 because it was unexpectedly deleting user files.  To finish the year with a bang, Microsoft pulled yet another failed Windows Update in December of 2018 to end […]

The post Microsoft Ends 2018 With Failed Windows Update appeared first on 24x7ITConnection.

PowerShell Script: Test Chrome, Firefox & IE Browser Performance

Helge Klein - Tue, 12/04/2018 - 17:58
Contents

There is more than one way to test the performance of web browsers like Chrome, Firefox, or IE, but regardless of how you do it, you need a consistent workload that makes the browsers comparable. Unless you are testing with synthetic benchmarks (which come with a plethora of problems of their own) you need a way to automate browsers opening tabs and loading URLs. This article presents a simple solution to do just that.

Purpose of This Browser Test Script

I have written about various aspects of browser performance and privacy before. For those earlier articles, I manually ran the browsers through a series of tests. This quickly proved to be tedious and error-prone. Obviously, automation is the name of the game.

For this year’s session Web App Performance in a Virtual World which I presented at Citrix Technology Exchange and at community meetups I went ahead and finally automated a large part of the test process, and it paid off immediately. I was able to test more configurations in less time with increased accuracy.

Testing is not enough, of course. You need to measure, too. For that, I have been using our uberAgent user experience and application performance monitoring product. uberAgent measures browser page load duration for all major browsers (which was important here) in addition to providing detailed application usage and performance insights for all installed and running applications – Win32, UWP, Java, App-V, etc.

Tweet source

What the Browser Test Script Does

It is really quite simple. I needed a script that would do the following – mind you, for any number of installed browsers and for a list of URLs supplied through a parameter file:

  • Start the browser
  • Open each URL in a new browser tab, waiting 30 s in between
  • Close the browser (gracefully)
  • Repeat the above three times per browser
Techniques Used in the Browser Test Script

I only rarely use PowerShell, my main development work is in C++. Nevertheless, you might find some of the following interesting.

Starting Applications With Their Name Only

Windows has a functionality for starting applications by name without requiring them to be part of the PATH environment variable. This is as useful as it is rarely known. I explained the mechanics in my article How the App Paths Registry Key Makes Windows Both Faster and Safer. The thing to note in this context is that App Paths entries can be leveraged from PowerShell with the Start-Process cmdlet. I used it in the script to start browsers by providing simple names like “chrome” or “firefox”.

Closing an Application’s Window Gracefully

When you start an application with the Start-Process cmdlet, it returns a process object. This object has an extremely useful method, CloseMainWindow(). It is equivalent to clicking on the “X” in the window’s upper right corner.

The Browser Test Script # # One time setup: # # - Open all sites on the list in all browsers # - Log on the test user UXMetricsGuyA (where applicable) # - Switch the browser window to full screen # - Config per site: # - Accept cookie popups # - Do not accept a site's notifications # - Enable "stay signed in" where applicable # - Config per browser: # - Configure browser startup to not open previous tabs # - Configure start page: "about:blank" # - Do not save passwords in the browser # - Disable browser dialogs: # - asking about not being the default # - asking if you want to close all tabs # # Before each test run: # # - Empty each browser's cache # - Do not delete cookies # - Close all browsers # - Restart the machine # - Log on as test user test01 # - Start a PowerShell console # - Wait five minutes # - Start this script # # # Global variables # # How long to wait between open site commands $waitBetweenSitesS = 30; # How long to wait after a browser's last site before closing its window $waitBeforeBrowserClose = 30; # How long to wait between browsers $waitBetweenBrowsers = 30; # Name of the file containing the sites to open $siteUrlFile = ".\URLs.txt"; # Number of iterations $iterations = 3; # Browsers to start $browsers = @("chrome", "firefox", "iexplore") # # Start of the script # # Read the sites file $sites = Get-Content $siteUrlFile; # Iterations for ($i = 1; $i -le $iterations; $i++) { Write-Host "Iteration: " $i # Browsers foreach ($browser in $browsers) { # Sites $siteCount = 0; foreach ($site in $sites) { $siteCount++; if ($siteCount -eq 1) { if ($browser -eq "chrome" -or $browser -eq "firefox") { # Start the browser with an empty tab because the first page load is currently not captured by uberAgent $process = Start-Process -PassThru $browser "about:blank" } else { # Start the browser with the first site $process = Start-Process -PassThru $browser $site } # Store the browser's main process (the first one started) $browserProcess = $process; # Wait for the window to open while ($process.MainWindowHandle -eq 0) { Start-Sleep 1 } if ($browser -eq "chrome" -or $browser -eq "firefox") { # Open the first site in a new tab Start-Process $browser $site } } elseif ($browser -eq "iexplore") { # Additional IE tabs need to be opened differently, or new windows will be created instead $navOpenInNewTab = 0x800; # Get running Internet Explorer instances $app = New-Object -ComObject shell.application; # Grab the last opened tab $ie = $app.Windows() | Select-Object -Last 1; # Open the site in a new tab $ie.navigate($site, $navOpenInNewTab); # Release the COM objects Remove-Variable ie; Remove-Variable app; } else { # Addition tabs in Chrome/Firefox Start-Process $browser $site } Start-Sleep $waitBetweenSitesS; } Start-Sleep $waitBeforeBrowserClose; # Close the browser $browserProcess.CloseMainWindow(); $browserProcess = $null; Start-Sleep $waitBetweenBrowsers; } } The Script’s URL Input File

The URL input file I used with the script in my 2018 tests looked like this:

https://mail.google.com/mail/u/0/#inbox https://docs.google.com/document/d/1hOc4bdEQ1-KJ5wOsiCt4kVQB-xaHuciQY6Y4X_I7dYA/edit https://www.google.com/maps/ https://twitter.com/ https://onedrive.live.com/edit.aspx?cid=740de493111072ca&page=view&resid=740DE493111072CA!108&parId=740DE493111072CA!106&app=PowerPoint https://outlook.live.com/mail/inbox https://www.dropbox.com/h https://www.nytimes.com/ https://www.nbcnews.com/ https://edition.cnn.com/

The post PowerShell Script: Test Chrome, Firefox & IE Browser Performance appeared first on Helge Klein.

Gartner I&O Conference 2018: What’s next for IT ops?

Theresa Miller - Tue, 12/04/2018 - 15:18

This week I’m attending the Gartner I&O Conference – or the Gartner IT Infrastructure, Operations & Cloud Strategies Conference 2018. It used to be called the Gartner Datacenter conference, but times have changed. Now the scope of what we must architect has expanded. Is a datacenter just what you manage on premises? Is it your public cloud […]

The post Gartner I&O Conference 2018: What’s next for IT ops? appeared first on 24x7ITConnection.

New - Citrix Gateway (Feature Phase) Plug-ins and Clients for Build 12.1-50.28

Netscaler Gateway downloads - Mon, 12/03/2018 - 22:00
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Components for Citrix Gateway 12.1

Netscaler Gateway downloads - Mon, 12/03/2018 - 22:00
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Components for Citrix Gateway 12.1

Netscaler Gateway downloads - Mon, 12/03/2018 - 22:00
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Citrix Gateway (Feature Phase) 12.1 Build 50.28

Netscaler Gateway downloads - Mon, 12/03/2018 - 22:00
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

New - Citrix Gateway (Feature Phase) Plug-ins and Clients for Build 12.1-50.28

Netscaler Gateway downloads - Mon, 12/03/2018 - 22:00
New downloads are available for Citrix Gateway
Categories: Citrix, Commercial, Downloads

Amazon’s Showcase of Innovation at AWS re:Invent 2018

Theresa Miller - Tue, 11/27/2018 - 06:30

The time is upon us for one of the year’s most anticipated technology conferences. Amazon’s re:Invent 2018 has kicked off in Las Vegas and is full of new products and innovations, with more to be announced throughout the week. Now, let’s take a look at what kicks off re:Invent 2018 AWS RoboMaker Makes Robotics Accessible […]

The post Amazon’s Showcase of Innovation at AWS re:Invent 2018 appeared first on 24x7ITConnection.

Enabling HTTP/2 in Apache on Ubuntu 18.04

Helge Klein - Mon, 11/26/2018 - 02:14

A number of requirements must be met before HTTP/2 can be enabled for a website. This is a compilation of steps I went through to get HTTP/2 working on our Apache web server hosting WordPress sites.

HTTP/2 Requirements Requirement #1: HTTPS

HTTP/2 only works with HTTPS. If you have not switched your site to HTTPS, now is the time to do it. You might be interested in my article Switching a WordPress Site From HTTP to HTTPS.

Requirement #2: Apache 2.4.24

The first version of Apache to support HTTP/2 is 2.4.24. If you are on the LTS branch of Ubuntu, this means you need to upgrade to Ubuntu 18.04. I will describe the upgrade process from 16.04 to 18.04 in another blog post.

Requirement #3: PHP FPM

Short version: if you run PHP in Apache via mod_php, you need to switch to FPM. That is not a bad thing. FPM is newer and faster.

Long version: HTTP/2 is not compatible with Apache’s prefork multi-processing module. However, prefork basically seems to be obsolete so it does not hurt to switch to something more modern, i.e., the event MPM. That, in turn, requires a change in the PHP module from mod_php to php7.x-fpm.

Configuration Changes for HTTP/2 Switching Apache’s PHP Module from MPM Prefork to Event

Run the following commands:

sudo apt-get install php7.2-fpm sudo a2enmod proxy_fcgi sudo a2enconf php7.2-fpm sudo a2dismod php7.2 sudo a2dismod mpm_prefork sudo a2enmod mpm_event sudo service apache2 restart Caveat: W3 Total Cache Shows Apache Modules as Not Detected

W3 Total Cache seems to rely on the function apache_get_modules() to detect Apache modules, which does not work with FPM. According to this support article from Plesk, this issue can be ignored.

Installing and Enabling HTTP/2 in Apache

Enable the module mod_http2:

sudo a2enmod http2 sudo service apache2 restart

Enable the HTTP/2 protocol by adding the following to /etc/apache2/apache2.conf:

Protocols h2 http/1.1 How to Verify that HTTP/2 is Working

Cloudflare put together a comprehensive list of ways you can check a website for HTTP/2 support. The easiest to use are probably Chrome Dev Tools (network view, add the Protocol column) or the online test from KeyCDN.

The post Enabling HTTP/2 in Apache on Ubuntu 18.04 appeared first on Helge Klein.

How to Limit CPU & RAM via the Windows Boot Configuration

Helge Klein - Wed, 11/21/2018 - 00:40

Testing the effects of different CPU and memory configurations is easiest when you run the tests on a powerful machine and restrict it to the required number of CPU cores and amount of RAM. Microsoft’s documentation of the relevant command is missing an essential parameter. Here are the commands you need.

Limiting the CPU to N Cores

On an elevated command prompt run:

bcdedit /set {current} numproc NUMBER_OF_CORES

Note: strangely, the numproc parameter is missing from the Microsoft documentation of bcdedit. However, it still works fine on Windows 10 1803.

Limiting the RAM to N MB

On an elevated command prompt run:

bcdedit /set {current} removememory MB_TO_REMOVE_FROM_INSTALLED_RAM With: MB_TO_REMOVE_FROM_INSTALLED_RAM = INSTALLED_RAM - DESIRED_RAM

This is unnecessarily complicated. Instead of specifying the total RAM you want Windows to see, you specify how much of the installed RAM to remove (in MB).

Removing a Bcdedit Setting

To remove a setting, run the following on an elevated command prompt:

bcdedit /deletevalue {current} SETTING_NAME E.g.: bcdedit /deletevalue {current} numproc

The post How to Limit CPU & RAM via the Windows Boot Configuration appeared first on Helge Klein.

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