<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><div style="direction: ltr;">Thank you for your help.</div><div style="direction: ltr;"> </div><div style="direction: ltr;">I would like to use two vyattas. One dedicated for customer 1 and another dedicated for customer 2. The two vyattas could be configured to be two firewalls or two load balancers. However, I thought about two NICs or two vNICs, one for each instance.</div><div style="direction: ltr;"> </div><div style="direction: ltr;">Best regards,</div><div style="direction: ltr;">Amer</div> Sent from my iPhone</div><div><div style="direction: rtl;"> </div>On Mar 13, 2016, at 8:51 AM, Karl Auer <<a href="mailto:kauer@biplane.com.au">kauer@biplane.com.au</a>> wrote: </div><blockquote type="cite"><div>On Sun, 2016-03-13 at 07:20 +0300, Amer wrote: <blockquote type="cite">I would like to install the same software twice in my machine. The </blockquote><blockquote type="cite">software is vyatta and my machine is Ubuntu 12.04. Also, I want to </blockquote><blockquote type="cite">run these two instances at the same time. </blockquote><blockquote type="cite">I do not want to use VMs based solution. </blockquote> There are two main barriers to running the same software twice on the same system. One is where the software looks for running instances of itself and refuses to run a second instance (or starts up some form of subprocess of the original instance instead of a whole new process). For an example of this, look at firefox: kauer@kt:~$ ps ax | grep firefox | grep -v grep 1980 ? Sl 14:01 /usr/lib/firefox/firefox kauer@kt:~$ firefox kauer@kt:~$ ps ax | grep firefox | grep -v grep 1980 ? Sl 14:03 /usr/lib/firefox/firefox ... even though I started a "new" firefox, the new window was started within the existing process; even though a new window opened, there is still only one firefox process. Sometimes such programs have command line options to allow you to start additional instances; check the documentation. For example, Firefox has the -no-remote option. Two instances can't use the same profile, so to use -no-remote you have to either specify a non-default profile or use the -ProfileManager option at the same time. I created a new profile for this demonstration and have removed the command line tails here for clarity. As you can see, a second firefox process was started: kauer@kt:~$ ps ax | grep firefox | grep -v grep 1980 ? Sl 14:12 /usr/lib/firefox/firefox kauer@kt:~$ firefox -no-remote -p testing & [1] 8662 kauer@kt:~$ ps ax | grep firefox | grep -v grep 1980 ? Sl 14:12 /usr/lib/firefox/firefox 8662 pts/2 Sl 0:01 /usr/lib/firefox/firefox The other main barrier is where the software uses a unique system resource, that cannot be used at the same time by another process. An example of this would be a web server, a DNS server or similar, because they take over particular ports. I haven't used vyatta, but I strongly suspect that this is the problem with it, because it will be listening on particular ports for eg BGP communications. Sometimes such programs have configuration options that allow them to use non-standard ports - for example, BIND can be configured to listen on ports other than port 53, Apache can be configured to listen on ports other than port 80. However, this is generally only useful for testing purposes, because the systems attempting to connect to these services generally expect them to be on the standard ports. As Ralf has said, if you tell us what exactly you are trying to achieve, we may be able to help you work out a solution. Regards, K. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl Auer (<a href="mailto:kauer@biplane.com.au">kauer@biplane.com.au</a>) <a href="http://www.biplane.com.au/kauer">http://www.biplane.com.au/kauer</a> <a href="http://twitter.com/kauer389">http://twitter.com/kauer389</a> GPG fingerprint: E00D 64ED 9C6A 8605 21E0 0ED0 EE64 2BEE CBCB C38B Old fingerprint: 3C41 82BE A9E7 99A1 B931 5AE7 7638 0147 2C3C 2AC4 -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </div></blockquote></body></html>