install and enable xattr on ubuntu :

sudo apt-get install attr
vim /etc/fstab
put user_xattr on the line partition ext4.

installing qt5 on ubuntu :

Install dependencies of Qt 4 “sudo apt-get build-dep libqt4-dev”
Install additional dependencies “sudo apt-get install gperf bison” (needed to compile QtWebkit)
Install xcb dependencies “sudo apt-get install libxcb1 libxcb1-dev libx11-xcb1 libx11-xcb-dev libxcb-keysyms1 libxcb-keysyms1-dev libxcb-image0 libxcb-image0-dev libxcb-shm0 libxcb-shm0-dev libxcb-icccm4 libxcb-icccm4-dev libxcb-sync0 libxcb-sync0-dev libxcb-xfixes0-dev libxrender-dev libxcb-shape0-dev”
cd to the directory where you extracted the tarball and run ./configure (with the options suggested above)
Run “./build” and wait for some time. If you have multiple cores, use ./build -j < number of cores> to speed up the build process

LDAP Support

installing ldap support on ubuntu for users to have home directories on the server
install ldap on the server and make sure the ldap user is able to login to the system

Firewall Rules

installing firewall rules on the webserver to forward websocket traffic to another server which is running akorp_ngw
sysctl net.ipv4.ip_forward=1
iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to
iptables -t nat -A POSTROUTING -j MASQUERADE -p tcp -d --dport 443

Clone Ubuntu VM

how to clone ubuntu vm : after clone operation on the ui change hostname in /etc/hosts and /etc/hostname
$ sudo rm /etc/udev/rules.d/70-persistent-net.rules
$ sudo mkdir /etc/udev/rules.d/70-persisitent-net.rules
install libtool and autoconf before installing any of the below libraries

dependencies need to be installed from source to build antkorp:

install libtool and autoconf before installing any of the below libraries i) poco
ii) boost
vii) mongodb
viii) luamongodb library
ix) lua5.1 only from repo
x) luarocks
xi) rocks to be installed - lualogging, luasocket, luaposix, json4lua, stdlib , luasec
make sure you have libssl already installed on the system before luasec
install luasec with command "sudo luarocks install luasec OPENSSL_LIBDIR=/usr/lib/i386-linux-gnu/"
install luabitop rock
install luaposix rock
install stdlib rock
install lbase64 rock
install lua-cjson rock
install lpeg rock
xiv) install ceph file system on the machines with this command :
echo deb $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
sudo apt-get update
sudo apt-get install ceph
not needed on the target machine since he already has a user in ldap: ---------------------------------------------------------------------- install lualdap library from luaforge kepler project Download lua-imlib2 from and build,copy the to /usr/local/lib/lua/5.1 xii) install mongodb from source and copy the files in to relevant /usr/local/include and /usr/local/lib directories
xiii) compile mongodb lua driver from the git hub repository copy the shared object to the /usr/local/lib/lua/5.1/
xv) install gd graphics library.
xvi) install lua-gd for lua bindings to gd library.
issue make in the lua-gd library and then copy the to the /usr/local/lib/lua/5.1
xxi) download the mongodb c++ driver from -
comment out the FILESYSTEM macro in the driver source to compile.
change the C++ compiler to g++-4.7 by adding line "env.Replace(CXX='g++-4.7')" after "Environment" line.
iv) google gflags library
v) google glog logging library
vi) google webp library
vii) libcurl3 library.

stock ubuntu 13.04 and installing gtk broadway:

sudo apt-get install build-essential
sudo apt-get install pkg-config
sudo apt-get install glib-2.0
sudo apt-get install libgtk-3.0 libgtk-3-dev
gtk-3.8 ; ./configure --enable-broadway-backend --enable-x11-backend ; make
set the environment variable SAL_USE_VCLPLUGIN=gtk3 for libreoffice to use the gtk3 broadway backend.

starting virtual box vm headless mode:

sudo -H -u rk VBoxManage startvm btrfstestub1304 --type headless


add -fPIC to the mongo cxx driver to compile it for 64 bit.

setting up apt-repository on ubuntu:

setting up a apache2 virtual site to host an apt-repository:

redirecting iptables from 443 to 8080

sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-ports 8080

disabling ssl in apache2 for using 443 by antkorp.

sudo a2dismod ssl; sudo a2dissite default-ssl; sudo service apache2 restart

enabling ssl in apache2:

sudo a2enmod ssl
sudo a2ensite default-ssl
sudo /etc/init.d/apache2 restart

compiling ceph on ubuntu :

  • sudo apt-get install uuid-dev 
  • sudo apt-get install libuuid1
  • sudo apt-get install libkeyutils-dev 
  • sudo apt-get install libnss3-dev 
  • sudo apt-get install libedit-dev 
  • sudo apt-get install libsnappy-dev 
  • sudo apt-get install libleveldb-dev 
  • sudo apt-get install libaio-dev 
  • ./configure --without-fuse --without-tcmalloc --without-libatomic-ops make ;

rsync command to copy the files with extended attributes:

sudo rsync -razvXe "ssh" --delete --progress --stats /opt/antkorp/homes root@

libreoffice build flags:
 ./ --build=x86_64-linux-gnu --host=x86_64-linux-gnu  --target=x86_64-linux-gnu  --enable-gtk3 --with-system-libs --without-java --without-doxygen --without-system-libebook --without-system-libetonyek --without-system-libfreehand --without-system-libodfgen --without-system-libmwaw  --without-system-libcmis --without-system-libabw --without-system-firebird --without-system-mdds --without-system-graphite --without-system-orcus --without-system-lpsolve --disable-gstreamer-0-10 --without-system-boost --disable-dbus --disable-gconf --with-parallelism

Compiling libreoffice 4.0 series:

./ CC=clang CXX=clang++ --build=x86_64-linux-gnu --host=x86_64-linux-gnu  --target=x86_64-linux-gnu  --enable-gtk3 --without-system-libs --without-java --without-doxygen  --without-system-libcmis --without-system-mdds --without-system-graphite --without-system-orcus --without-system-lpsolve --disable-gstreamer-0-10 --without-system-boost --disable-dbus --disable-gconf --disable-cups --without-system-libxml --with-system-cairo --with-boost-date-time  --with-boost-system --disable-python   --with-parallelism --without-helppack-integration --without-myspell-dicts

./ --build=x86_64-linux-gnu --host=x86_64-linux-gnu  --target=x86_64-linux-gnu  --enable-gtk3 --without-system-libs --without-java --without-doxygen  --without-system-libcmis --without-system-mdds --without-system-graphite --without-system-orcus --without-system-lpsolve --disable-gstreamer --without-system-boost --disable-dbus --disable-gconf --disable-cups --without-system-libxml --with-system-cairo --with-boost-date-time  --with-boost-system --disable-python   --with-parallelism --without-helppack-integration --without-myspell-dicts --without-system-openssl --disable-mozilla --disable-odk --disable-mathmldtd --disable-neon --enable-icecream --disable-nsplugin --disable-postgresql-sdbc --disable-ldap