diff --git a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-cfx.md b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-cfx.md
index 1693bc723792cad5ae5cabbc979a5b2a2a525b4b..03edb80891c5f9c1fe08a5888eb93b96fa5b1a68 100644
--- a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-cfx.md
+++ b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-cfx.md
@@ -1,7 +1,7 @@
ANSYS CFX
=========
-[ANSYS CFX](http://www.ansys.com/Products/Simulation+Technology/Fluid+Dynamics/Fluid+Dynamics+Products/ANSYS+CFX) software is a high-performance, general purpose fluid dynamics program that has been applied to solve wide-ranging fluid flow problems for over 20 years. At the heart of ANSYS CFX is its advanced solver technology, the key to achieving reliable and accurate solutions quickly and robustly. The modern, highly parallelized solver is the foundation for an abundant choice of physical models to capture virtually any type of phenomena related to fluid flow. The solver and its many physical models are wrapped in a modern, intuitive, and flexible GUI and user environment, with extensive capabilities for customization and automation using session files, scripting and a powerful expression language.
+[ANSYS CFX](http://www.ansys.com/products/fluids/ansys-cfx) software is a high-performance, general purpose fluid dynamics program that has been applied to solve wide-ranging fluid flow problems for over 20 years. At the heart of ANSYS CFX is its advanced solver technology, the key to achieving reliable and accurate solutions quickly and robustly. The modern, highly parallelized solver is the foundation for an abundant choice of physical models to capture virtually any type of phenomena related to fluid flow. The solver and its many physical models are wrapped in a modern, intuitive, and flexible GUI and user environment, with extensive capabilities for customization and automation using session files, scripting and a powerful expression language.
To run ANSYS CFX in batch mode you can utilize/modify the default cfx.pbs script and execute it via the qsub command.
diff --git a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-fluent.md b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-fluent.md
index fc7f718e87403f193b9491c43ee293169bf8bfbd..04dd0b56251aef1f17bbb52b94d0730111fe42de 100644
--- a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-fluent.md
+++ b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-fluent.md
@@ -1,7 +1,7 @@
ANSYS Fluent
============
-[ANSYS Fluent](http://www.ansys.com/Products/Simulation+Technology/Fluid+Dynamics/Fluid+Dynamics+Products/ANSYS+Fluent)
+[ANSYS Fluent](http://www.ansys.com/products/fluids/ansys-fluent)
software contains the broad physical modeling capabilities needed to model flow, turbulence, heat transfer, and reactions for industrial applications ranging from air flow over an aircraft wing to combustion in a furnace, from bubble columns to oil platforms, from blood flow to semiconductor manufacturing, and from clean room design to wastewater treatment plants. Special models that give the software the ability to model in-cylinder combustion, aeroacoustics, turbomachinery, and multiphase systems have served to broaden its reach.
1. Common way to run Fluent over PBS file
diff --git a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-ls-dyna.md b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-ls-dyna.md
index d712659f5794a75e75c96f64c0db3d107cfb2822..269e44a7cb7b55b2181f6e752ccb6cc56c94c575 100644
--- a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-ls-dyna.md
+++ b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-ls-dyna.md
@@ -1,7 +1,7 @@
ANSYS LS-DYNA
=============
-**[ANSYSLS-DYNA](http://www.ansys.com/Products/Simulation+Technology/Structural+Mechanics/Explicit+Dynamics/ANSYS+LS-DYNA)** software provides convenient and easy-to-use access to the technology-rich, time-tested explicit solver without the need to contend with the complex input requirements of this sophisticated program. Introduced in 1996, ANSYS LS-DYNA capabilities have helped customers in numerous industries to resolve highly intricate design issues. ANSYS Mechanical users have been able take advantage of complex explicit solutions for a long time utilizing the traditional ANSYS Parametric Design Language (APDL) environment. These explicit capabilities are available to ANSYS Workbench users as well. The Workbench platform is a powerful, comprehensive, easy-to-use environment for engineering simulation. CAD import from all sources, geometry cleanup, automatic meshing, solution, parametric optimization, result visualization and comprehensive report generation are all available within a single fully interactive modern graphical user environment.
+**[ANSYSLS-DYNA](http://www.ansys.com/products/structures/ansys-ls-dyna)** software provides convenient and easy-to-use access to the technology-rich, time-tested explicit solver without the need to contend with the complex input requirements of this sophisticated program. Introduced in 1996, ANSYS LS-DYNA capabilities have helped customers in numerous industries to resolve highly intricate design issues. ANSYS Mechanical users have been able take advantage of complex explicit solutions for a long time utilizing the traditional ANSYS Parametric Design Language (APDL) environment. These explicit capabilities are available to ANSYS Workbench users as well. The Workbench platform is a powerful, comprehensive, easy-to-use environment for engineering simulation. CAD import from all sources, geometry cleanup, automatic meshing, solution, parametric optimization, result visualization and comprehensive report generation are all available within a single fully interactive modern graphical user environment.
To run ANSYS LS-DYNA in batch mode you can utilize/modify the default ansysdyna.pbs script and execute it via the qsub command.
diff --git a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-mechanical-apdl.md b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-mechanical-apdl.md
index 69d920f50c3db8e8b0ad7e4382d86b8a92ed1797..1168d089cfbecfaf9187324ffbf144f097ae9266 100644
--- a/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-mechanical-apdl.md
+++ b/docs.it4i/anselm-cluster-documentation/software/ansys/ansys-mechanical-apdl.md
@@ -1,7 +1,7 @@
ANSYS MAPDL
===========
-**[ANSYS Multiphysics](http://www.ansys.com/Products/Simulation+Technology/Structural+Mechanics/ANSYS+Multiphysics)**
+**[ANSYS Multiphysics](http://www.ansys.com/products/multiphysics)**
software offers a comprehensive product solution for both multiphysics and single-physics analysis. The product includes structural, thermal, fluid and both high- and low-frequency electromagnetic analysis. The product also contains solutions for both direct and sequentially coupled physics problems including direct coupled-field elements and the ANSYS multi-field solver.
To run ANSYS MAPDL in batch mode you can utilize/modify the default mapdl.pbs script and execute it via the qsub command.
diff --git a/docs.it4i/get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/x-window-system.md b/docs.it4i/get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/x-window-system.md
index 9952f60e130976f0e16cedc61accfd84958fdd01..833117661666ba6377780cfd0767bc6e308ccd03 100644
--- a/docs.it4i/get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/x-window-system.md
+++ b/docs.it4i/get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/x-window-system.md
@@ -42,7 +42,7 @@ In order to display graphical user interface GUI of various software tools, you
X Server on OS X
----------------
-Mac OS users need to install [XQuartz server](http://xquartz.macosforge.org/landing/).
+Mac OS users need to install [XQuartz server](http://xquartz.org).
X Server on Windows
-------------------
diff --git a/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/certificates-faq.md b/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/certificates-faq.md
index 5c8fafa301a1694a2301fa1159c8ad4ea3d69d1e..e3b3e374fa6ea3a483618d76f7e019cdde3ceaa4 100644
--- a/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/certificates-faq.md
+++ b/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/certificates-faq.md
@@ -25,7 +25,7 @@ Q: Which X.509 certificates are recognised by IT4Innovations?
Q: How do I get a User Certificate that can be used with IT4Innovations?
------------------------------------------------------------------------
-To get a certificate, you must make a request to your local, IGTF approved, Certificate Authority (CA). Usually you then must visit, in person, your nearest Registration Authority (RA) to verify your affiliation and identity (photo identification is required). Usually, you will then be emailed details on how to retrieve your certificate, although procedures can vary between CAs. If you are in Europe, you can locate your trusted CA via <http://www.eugridpma.org/members/worldmap>.
+To get a certificate, you must make a request to your local, IGTF approved, Certificate Authority (CA). Usually you then must visit, in person, your nearest Registration Authority (RA) to verify your affiliation and identity (photo identification is required). Usually, you will then be emailed details on how to retrieve your certificate, although procedures can vary between CAs. If you are in Europe, you can locate [your trusted CA](http://www.eugridpma.org/members/worldmap).
In some countries certificates can also be retrieved using the TERENA Certificate Service, see the FAQ below for the link.
@@ -137,7 +137,7 @@ You also can import CA certificates into your java keystore with the tool, e.g.:
where $mydomain.crt is the certificate of a trusted signing authority (CA) and $mydomain is the alias name that you give to the entry.
-More information on the tool can be found at:<http://docs.oracle.com/javase/7/docs/technotes/tools/solaris/keytool.html>
+More information on the tool can be found [here](http://docs.oracle.com/javase/7/docs/technotes/tools/solaris/keytool.html)
Q: How do I use my certificate to access the different grid Services?
---------------------------------------------------------------------
diff --git a/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/obtaining-login-credentials.md b/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/obtaining-login-credentials.md
index eee740126c0c749a98d670fc248636fe8bea4a67..a237e50d2e210d28ffcbc246f3afb694944432c4 100644
--- a/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/obtaining-login-credentials.md
+++ b/docs.it4i/get-started-with-it4innovations/obtaining-login-credentials/obtaining-login-credentials.md
@@ -137,7 +137,7 @@ Alternative Way to Personal Certificate
Follow these steps **only** if you can not obtain your certificate in a standard way. In case you choose this procedure, please attach a **scan of photo ID** (personal ID or passport or drivers license) when applying for [login credentials](obtaining-login-credentials/#the-login-credentials).
-1. Go to [CAcert](https://www.cacert.org/).
+1. Go to [CAcert](www.cacert.org).
- If there's a security warning, just acknowledge it.
2. Click *Join*.
3. Fill in the form and submit it by the *Next* button.