MobaXTerm a Swiss-Army Knife for Remote Computing

If you are looking for a a Swiss Army Knife for Remote Computing, you may want to take a look at MobaXterm which boasts a number of features including

  • Embedded X Server
  • DISPLAY exportation
  • X11-Forwarding capability
  • Tabbed Terminal with SSH (My favourite)
  • Versatile Session which includes (RDP, SSH, VNC, Telnet, XdCmp etc)


Increasing JavaMemHeapMax for MATLAB on CentOS

Some of your MATLAB application may require more Java Heap Memory than the default. You may want to edit your ~/.matlab/R2017a/matlab.prf. If you do not have it, just create the file

1. Create matlab.prf

$ touch ~/.matlab/R2017a/matlab.prf

2. Increase memory to 36GB

$ vim ~/.matlab/R2017a/matlab.prf


  1. Change Java Heap Memory Settings Without Starting Matlab?

Compiling R-3.4.2 on CentOS 6 with GNU

If you are compiling CentOS 6, you will notice that the R source will not compile without a updated version of zlib, pcre, bzip2. libcurl. There is a very good site on how to compile R on Red Hat Linux

Step 1: Compile R-3.4.2

Download R-3.4.2 from The R Project for Statistical Computing

$ tar -zxvf R-3.4.2.tar.gz
$ ./configure --prefix=/usr/local/RH6_apps/R-3.4.2

During configuring…. error surfaced.

checking for zlib.h... yes
checking if zlib version >= 1.2.5... no
checking whether zlib support suffices... configure: error: zlib library and headers are required

Step 2: Compile zlib 1.2.11

a. In your .bashrc

export CFLAGS="-I/usr/local/zlib-1.2.11/include"
export LDFLAGS="-L/usr/local/zlib-1.2.11/lib"

b. Compile zlib-1.2.11

$ wget
$ tar -zxvf zlib-1.2.11
$ cd zlib-1.2.11
$ configure --prefix=/usr/local/zlib-1.2.11

Step 3: Compile bzip2
a. Download the bzip2

$ wget
$ tar xzvf bzip2-1.0.6.tar.gz
$ cd bzip2-1.0.6

b. Compile bzip2

$ make -f Makefile-libbz2_so
$ make clean
$ make -n install PREFIX=/usr/local/R-3.4.2
$ make install PREFIX=/usr/local/R-3.4.2

Step 4: Compile liblzma or xz

$ wget --no-check-certificate
$ tar xzvf xz-5.2.3.tar.gz
$ cd xz-5.2.3
$ ./configure --prefix=/usr/local/xz-5.2.3
$ make -j8
$ make install

Step 5: Compile pcre-8.40

$ wget
$ tar xzvf pcre-8.40.tar.gz
$ ./configure --prefix=/usr/local/pcre-8.40
$ make -j 8
$ make install

Step 6: Compile libcurl-7.47.1

$ wget --no-check-certificate
$ tar xzvf curl-7.47.1.tar.gz
$ cd curl-7.47.1
$ ./configure --prefix=/usr/local/curl-7.47.1
$ make -j 8
$ make install

Step 7: Update CFLAGS and LDFLAGS

export CFLAGS="-I/usr/local/zlib-1.2.11/include -I/usr/local/bzip2-1.0.6/include -I/usr/local/xz-5.2.3/include -I/usr/local/pcre-8.40/include -I/usr/local/curl-7.47.1/include/curl"
export LDFLAGS="-L/usr/local/zlib-1.2.11/lib -L/usr/local/bzip2-1.0.6/lib -L/usr/local/xz-5.2.3/lib -L/usr/local/pcre-8.40/lib -L/usr/local/curl-7.47.1/lib"

Step 8: Compile R-3.4.2

$ ./configure --enable-utf8 --prefix=/usr/local/R-3.4.2
$ make -j 8
$ make install


  1. Building R-devel on RedHat Linux 6