RHEL / CentOS 7 Linux

This page explains how to install ]project-open[ V5.0 on RHEL/CentOS 7 64bit.
For instructions on how to updating a productive ]po[ 4.0 version please refer to: Upgrade V4.0 to V5.0

VMware Virtual Machine

Installing ]po[ requires not only Linux expertise but also some time. As a shortcut, you can use our CentOS 7 virtual machine on http://sourceforge.net/projects/project-open/files/project-open/V5.0/ .

This virtual machine has been built following the instructions below and has been exhaustively tested.

  • Password for user "root": "root"
  • Password for user "projop": "projop"

Base CentOS 7 Installation

Please help us to improve below instructions. To report any bugs please use the SF Community forum . To get professional support please contact us .

Please download CentOS 7 "Minimal Installation" and install with the option "Minimal Install".

After a reboot, login as root an:

  • # nmtui
    set the host name to "project-open-v50"
  • # nmtui
    setup an network connection: "Edit a connection", select an ethernet interface, edit the configuration, select "Automatically connect" and quit.
  • # systemctl restart network
    in order to restart the network manager
  • # yum -y install system-config-*
    # yum -y group install "System Administration Tools"
    in order to install system administration tools 

To verify network connectivity try to ping some external server, for example:

# ping www.google.com

Install "KDE Plasma Workspaces" Graphical Environment

GNOME 3 on CentOS 7 has a number of important issues, so the ]po[ team recommends to switch to KDE:

# yum -y group install "KDE Plasma Workspaces" "X Window System"
# yum -y group install "Graphical Administration Tools"
# yum -y install net-tools setools policycoreutils-python
# ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target

Development Tools

]po[ will need a number of tools for creating systems integration interfaces.

# yum -y group install "Development Tools"
# yum -y group install "Compatibility Libraries"
# yum -y install vim emacs-nox
# yum -y install cvs svn git wget libXaw expat expat-devel pango graphviz-devel ImageMagick
# yum -y install libdbi-dbd-pgsql openldap-clients openldap-devel mlocate sharutils

Perl Libraries

]po[ uses Perl for integration with several external applications:

# yum -y install graphviz-perl perl perl-Archive-Tar perl-Archive-Zip perl-CGI perl-CGI-Session
# yum -y install perl-CPAN perl-CPAN-Changes perl-CPAN-Meta perl-CPAN-Meta-Requirements perl-CPAN-Meta-YAML
# yum -y install perl-Carp perl-Compress-Raw-Bzip2 perl-Crypt-DES perl-Crypt-OpenSSL-RSA
# yum -y install perl-Crypt-OpenSSL-Random perl-Crypt-PasswdMD5 perl-Crypt-SSLeay perl-DBD-Pg
# yum -y install perl-DBD-Pg-tests perl-DBI perl-Data-Dumper perl-DateTime perl-Digest-MD5
# yum -y install perl-Encode perl-File-Slurp perl-GSSAPI perl-IO-Socket-IP perl-IO-Socket-SSL
# yum -y install perl-JSON perl-LDAP perl-LWP-MediaTypes perl-LWP-Protocol-https perl-Net-DNS
# yum -y install perl-Net-HTTP perl-Net-SSLeay perl-Params-Check perl-Params-Util perl-Params-Validate
# yum -y install perl-Socket perl-TimeDate perl-WWW-Curl perl-YAML perl-core perl-devel perl-gettext
# yum -y install perl-libs perl-libwww-perl rrdtool-perl perl-YAML

Optionally Install OpenOffice/LibreOffice

]po[ PDF generation functions use OpenOffice "headless" for file conversion:
# yum -y install libreoffice libreoffice-headless

Download Required Files

Please download the following files into your /usr/src/ directory:

Extract the ]po[ Installer Contents 

Please go through the following steps to create a ]po[ user "projop" and to extract the installer into this user's home directory:

groupadd projop                                                              (create a group called "projop")
mkdir /web/                                                                  (super-directory for all Web servers /web/ by default)
useradd -d /web/projop -g projop projop                                      (create user "projop" with home directory /web/projop)
cd /web/projop/
tar xzf /usr/src/web_projop-aux-files.                          (extract auxillary files)
tar xzf /usr/src/project-open-Nightly-[VERSION]-[DATE]-[TIME].tgz            (extract the ]po[ product source code - latest )
gzip -d  /usr/src/pg_dump.project-open-v50.projop.[VERSION].sql.gz           (extract the database dump)
chown -R projop:projop /web/projop                                           (set ownership to all files)

cd /usr/local
tar xzf /usr/src/naviserver-4.99.8.tgz                        (extract the NaviServer binary for 64 bit)

Setup PostgreSQL 9.2

PostgreSQL 9.2 is part of CentOS 7. Please use exactly this version.

Please install the database using:

# yum -y install postgresql postgresql-server postgresql-contrib postgresql-devel postgresql-odbc postgresql-docs

Configure PostgreSQL start with server start:

# systemctl enable postgresql
Initialize and start the database:
# /usr/bin/postgresql-setup initdb
# systemctl start postgresql

Create a new database and user:

# su - postgres -c "createuser -s projop"                          (database user "projop" with admin rights)
# su - projop -c "createdb --encoding=utf8 --owner=projop projop"  (new database)
# su - projop -c "createlang plpgsql projop"                       (enable PlPg/SQL, may already be installed)

You can verify your PostgreSQL installation by typing ("\q" or Ctrl-D for exit):

# su - projop -c psql

Press "\q" or Ctrl-D to exit.

Now import the database dump:

# su - projop
# psql -f /usr/src/pg_dump.project-open-v50.projop.[VERSION].sql > import.log 2>&1

The import can take up to a minute, depending on your system. Please ignore the ~3.500 error messaging showing up at the beginning (that's because the dump contains instructions to drop any stuff that's still in the DB...). In order to verify the import please execute:

# su - projop
# psql -c "select count(*) from users"
.. which should return 198 or a similar number (the number of demo users in the demo company provided as part of the installer).

Edit the ]po[ configuration file

Please modify /web/projop/etc/config.tcl for the following parameters:

set servername   "<your_company> \]project-open\[ Server"
set homedir      /usr/local/ns

You can also modify the http port if you know what you are doing. Please note that the port number has to be above 1024 for permission reasons.

Open the Firewall Port 80 and 8000

The firewall is enabled by default in CentOS 7, so we will have to punch a hole for the ]project-open[ ports 80, 443 and 8000 graphically using system-config-firewall-tui or manually:

firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --zone=public --add-port=443/tcp --permanent
firewall-cmd --zone=public --add-port=8000/tcp --permanent
firewall-cmd --reload

You can also disable the firewall completely, because we will disable all unnecessary services anyway.

Start ]project-open[ Manually

# /usr/local/ns/bin/nsd -f -t /web/projop/etc/config.tcl -u projop -g projop

]po[ should take a few seconds before the line appears "[...] Notice: nssock: listening on".

As a result, you should be able to see 8000 in the list of ports accepting connections:

# netstat -nlp | grep 8000

Please point your favorite Web browser to http://localhost:8000/ and login as "sysadmin@tigerpond.com" / "system". You should see a login page (default admin: "sysadmin@tigerpond.com" / "system") or a configuration wizard. Please do not continue here at the moment, because we still need to fix several issues before ]po[ will run as desired.

You can stop the ]po[ server in the terminal window using Ctrl-C.

Congratulations, great job!

Automate NaviServer Startup

We now have to automate the startup of NaviServer (the application server of ]project-open[) for production use:

Create a new file /usr/lib/systemd/system/projop.service with the following content: 

Description=NaviServer Web Server as user projop
After=postgresql.service network.target


ExecStartPre=/usr/bin/rm -f /web/projop/log/nsd.pid
ExecStart=/usr/local/ns/bin/nsd -t /web/projop/etc/config.tcl -u projop -g projop
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s 9 $MAINPID

# Restart=on-abort
# Restart=on-abnormal



Please execute the following commands in order to activate the configuration:

# systemctl daemon-reload
# systemctl enable projop.service
# systemctl start projop.service
You can check that NaviServer is running by monitoring it's error file (debugging is switched on by default):
# tail -f /web/projop/log/error.log

Install nginx on Port 80

]project-open[ by default listens on port 8000 and for permission reasons can not listen on port 80. As a workaround you can install a “reverse proxy” server on port 80 that redirects HTTP requests to port 8000.

You can configure Apache for such a purpose, Apsis Pound or or the small Web server ngnix. Ngnix is part of the Red Hat/CentOS 7 distribution system and more convenient than apache2, so this is why we use it by default now. Ngnix is also convenient if you want to run more then one ]po[ or non-]po[ server on your machine, because it allows you to distribute HTTP requests to different back-ends, depending on the HTTP headers etc.

In order to install nginx we need to enable the "epel" repositories with experimental software for CentOS: 

# yum -y install epel-release
# yum -y install nginx
Assuming that there is no other process listening on port 80 (netstat -nlp | grep 80), please edit /etc/nginx/nginx.conf to look like this (modifying the "server {...}" section):
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

events {
    worker_connections 1024;

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log          /var/log/nginx/access.log  main;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   601;
    types_hash_max_size 2048;
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    include             /etc/nginx/conf.d/*.conf;

    server {
        listen 80;
        location / {
            # pass all communication to NaviServer on port 8000
            proxy_pass ;
            # add information about the original IP
            proxy_set_header     X-Forwarded-For $remote_addr;
            # upload files to file storage up to 1G
            client_max_body_size 1024M;

        # error_page    500 502 503 504 /err/50x.html;
        # error_page    404             /err/404.html;
        # location /err/ {
        #     root /usr/share/nginx/html;
        # }


Then please perform:

# systemctl enable nginx
# systemctl restart nginx
# netstat -nlp | grep 80

You should now see nginx listening on port 80.

As a next step you need to tell SELinx to allow nginx to create an outgoing connection to port 8000:

Point your browser to http://localhost:80/ in order to cause a "502 Bad Gateway" error (it is important to cause this error!). Please check your firewall configuration if you don't get a "502" error.
Then execute the following commands:

# cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx
# semodule -i mynginx.pp

Now point your browser again to http://localhost:80/ and you should see ]po[ in action.

Configure Automatic Backups

You can automate a daily ]po[ backup using our default export-dbs script. Please copy the script (please follow the link for source code) into the file /root/bin/export-dbs. Mark the script as executable, create default backup directories and execute the script:

# mkdir /var/backup                                             (create a global backup directory)
# chown projop:postgres /var/backup                             (allow projop & PostgreSQL to write backups)
# chmod g+w /var/backup
# mkdir /var/log/postgres                                       (create directory for DB related logs)
# chown postgres:postgres /var/log/postgres                     (allow projop & PostgreSQL to write)
# chmod g+w /var/log/postgres
# chmod ug+x /root/bin/export-dbs (mark backup script as executable) # perl /root/bin/export-dbs (execute backup script)
add the following lines to your crontab:
29 3 * * * /usr/bin/perl /root/bin/export-dbs > /var/log/postgres/export-dbs.log 2>&1
24 3 * * * /usr/bin/find /export/backup -name '*.tgz' -mtime +6 | xargs rm
25 3 * * * /usr/bin/find /export/backup -name '*.bz2' -mtime +6 | xargs rm

Fix GraphViz Configuration

GraphViz creates GIF and PNG images from textual descriptions. ]po[ uses GraphViz to visualize the state of workflows and similar purposes.

To fix/enable GraphViz, please create a symbolic link for the "dot" tool:

cd /usr/local/bin/
ln -s /usr/bin/dot

Install and Test "Postfix" Email Server

]po[ by default uses Postfix to send out notification emails. To install please use:

# yum -y install postfix postfix-perl-scripts mailx

You can test your email configuration by sending out a test email to yourself:

# echo "test email body" | mail -s "Test Email Subject" <you@your_domain.com>

Then have a look at the last lines of /var/log/maillog

# tail -n 20 /var/log/maillog

You may have to configure a Postfix "relayhost" pointing to your corporate SMTP server or simiar. Please check configure-external-smtp-server for more details.

Enable ]po[ Integration Links

]po[ includes a long list of integration links with external systems including Microsoft Active Directory, SAP FI, SAP PS, Microsoft Navision NAV, SQL-Ledger, SugarCRM, vTiger, Atlassian Jira, TaskJuggler, OCS Inventory NG, CVS, SVN Subversion, Git, Email, and others. Most of these integration links use Perl and Perl libraries as interfaces. Therefore you will need to have working versions of a number of Perl modules installed on your system.

There are two steps necessary in order to install these Perl libraries:

Install Most Perl Libraries via YUM

Most Perl libraries are available from the standard CentOS and "EPEL" repositories as RPMs and installable via YUM. First you need to add the EPEL repositories, if you didn't do this already:

# yum -y install epel-release

After that, you can install additional Perl packages:

# yum install perl-MIME-tools
# yum install perl-Path-Class
# yum install perl-IO-Socket-INET6

Install Missing Perl Libraries via CPAN

Finally, you will have to manually compile and deploy some Perl libraries that are not available as part of CentOS for whatever reasons. So we will have to pursue a somehow dirty method here and install the additional Perl packages in system folders that are managed by YUM. In order to do so, we will need to configure CPAN to use the system folders.

1. Cleanup any files from previous installations

  • delete /root/.cpan
  • delete /root/perl5
  • edit /root/.bashrc/ and check and remove any PERL environment variables
  • logout and login again
  • execute "set | grep -i perl" to check that no environment variables are set 

2. Start CPAN as user "root":

# cpan

  • Answer "no" to the first question ("Would you like to configure as much as possible automatically?") in order to enter into manual configuration. 
  • Answer "sudo" to the next question ("What approach do you want?  (Choose 'local::lib', 'sudo' or 'manual')")
  • Answer <enter> to all remaining questions (just press the Enter key...)

CPAN should write out a page or two of text, select the closest mirror for you and then enter interactive with command prompt waiting for commands. Please enter:

cpan[1]> install IO::Socket::PortState        (follow defaults by pressing <Enter> if needed)
cpan[3]> quit

Please observe upper/lower case in the commands above.

Now copy PortState.pm to the Perl5 library:

# cp /usr/local/share/perl5/IO/Socket/PortState.pm /usr/share/perl5/vendor_perl/IO/Socket/

This action actually breaks the YUM package system because PortState.pm will remain unmaintained in a YUM controlled directory. However, there have been no practical solution yet coming from discussions with the RHEL/CentOS maintainers for this library which is not available as a RPM.

Upgrade ]project-open[

Please see available updates. Please read the forum and other sources in order to see if it is necessary to upgrade. Please see the V5.0 release notes for information on known issues.

Integration With Other Systems

Please see http://www.project-open.com/en/list-integration-links  for a list of supported integration links with other software packages.

FAQs, Documents and Issues Related CentOS  7

Did you encounter any issues? Did you successfully install ]project-open[?

Please let us know for what purpose you want to use ]project-open[, and we provide you with half a day of free training or consulting if we publish a Success Story together.

If you found an error/issue/.. please:

  1. Search your ~projop/log/error.log file for occurrences of the string “Error:” (upper case “E” and a colon as the last characters). Errors about “translation not found” are OK, but everything else is suspicious.
  2. Please check our FAQ section as a first step.
    Here you will find tips for diagnosing and debugging issues.
  3. Try searching for key words included in your issue here on www.project-open.org  using the search box on the top right of this page.
  4. Please visit our Open Discussions  forum at SourceForge and search for your issue. 
  5. Please check the RHEL/CentOS 6 installer thread  .
  6. If you still haven't found anything, please post into the thread .
  7. The ]project-open[ core team provides training, professional support and consulting services. Please contact us   if you want to use ]po[ for more then a dozen of users.
  Contact Us
  Project Open Business Solutions S.L.

Calle Aprestadora 19, 12o-2a

E-08907 Hospitalet de Llobregat (Barcelona)

 Tel Europe: +34 932 202 088
 Tel US: +1 415 429 5995
 Mail: info@project-open.com