<div dir="ltr">Hi Alejandro,<div> Thank you for your excellent reply. Our architect told</div><div>me today that "we will not have an Ubuntu Linux terminal to run when running in</div>mono-service mode. Instead we need to start an Ubuntu Linux service".<div>As a result, he does not want me to use export LD_LIBRARY_PATH </div><div>before mono-service ./AudioRecorder.exe.</div><div> Furthermore, I cannot pass in LD_LIBRARY_PATH as a</div><div>command line argument because specifyiing <code>LD_LIBRARY_PATH</code> </div><div>as a command-line argument has no effect because </div><div><code>LD_LIBRARY_PATH</code> is processed by the dynamic link loader (ld.so), </div><div>except in the case where the program calls after <code>dlopen</code> to load a plugin.</div><div> Also, I looked at using -Wl, -rpath and $ORIGIN , according to <a href="http://stackoverflow.com/questions/25918462/why-ld-library-path-is-bad-and-the-correct-way-to-load-dynamic-libraries">http://stackoverflow.com/questions/25918462/why-ld-library-path-is-bad-and-the-correct-way-to-load-dynamic-libraries</a>, to specify the directory path to the application and build a relative rpath from there. You would then move the library to a known relative path to the binary. In my humble opinion, this approach as</div><div>good as it is, has no analogue in the C# .NET world. I</div><div>was wondering if there is a way to specify -rpath and $ORIGIN in the</div><div>C# .NET domain.</div><div> I would think there might be a way when we start a LINUX service</div><div>to specify the LD_LIBRARY_PATH or any other UNIX environment</div><div>variable without using terminal macros(?sp)? My English is not that good.</div><div> Thank you very much.</div></div><div class="gmail_extra"> <div class="gmail_quote">On Fri, May 13, 2016 at 8:09 PM, <<a href="mailto:ubuntu-users-request@lists.ubuntu.com" target="_blank">ubuntu-users-request@lists.ubuntu.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send ubuntu-users mailing list submissions to <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> To subscribe or unsubscribe via the World Wide Web, visit <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank" rel="noreferrer">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> or, via email, send a message with subject or body 'help' to <a href="mailto:ubuntu-users-request@lists.ubuntu.com">ubuntu-users-request@lists.ubuntu.com</a> You can reach the person managing the list at <a href="mailto:ubuntu-users-owner@lists.ubuntu.com">ubuntu-users-owner@lists.ubuntu.com</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of ubuntu-users digest..." Today's Topics: 1. Re: How to restart the networking after changing the network configuration? (Tom H) 2. Re: How to restart the networking after changing the network configuration? (Tom H) 3. Re: How to restart the networking after changing the network configuration? (Tom H) 4. How do we do programmatically set LD_LIBRARY_PATH for this scenario , mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. (Frank Chang) 5. Re: How do we do programmatically set LD_LIBRARY_PATH for this scenario , mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. (Alejandro Visiedo Garc?a) ---------------------------------------------------------------------- Message: 1 Date: Fri, 13 May 2016 23:59:42 +0200 From: Tom H <<a href="mailto:tomh0665@gmail.com">tomh0665@gmail.com</a>> To: Ubuntu Users <<a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a>> Subject: Re: How to restart the networking after changing the network configuration? Message-ID: <CAOdo=<a href="mailto:Sxd0a%2BhDU2Y4czur1tN-Tjcx8wtdn-tN1ypWdFVuM1i1g@mail.gmail.com">Sxd0a+hDU2Y4czur1tN-Tjcx8wtdn-tN1ypWdFVuM1i1g@mail.gmail.com</a>> Content-Type: text/plain; charset=UTF-8 On Fri, May 13, 2016 at 3:15 PM, Zhengyu Guo <<a href="mailto:zhengyuguobuaa@gmail.com">zhengyuguobuaa@gmail.com</a>> wrote: > > My question is how to restart the networking after changing the network > configuration? > > I setup a bridge in my machine and I need to restart the network to make it > work. However, If I use the following command it will not work. > > ~~~ > /etc/network$ sudo service networking restart > Job for networking.service failed because the control process exited with > error code. See "systemctl status networking.service" and "journalctl -xe" > for details. > ~~~ > But if I reboot the machine, the configuration will take effect without any > problem. > > Therefore, I want to know if there are any alternative way that I can use > for restart the networking without the need for rebooting. ifdown <physical_nic> change "/etc/network/interfaces" ifup <bridge> ------------------------------ Message: 2 Date: Sat, 14 May 2016 00:03:22 +0200 From: Tom H <<a href="mailto:tomh0665@gmail.com">tomh0665@gmail.com</a>> To: Ubuntu Users <<a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a>> Subject: Re: How to restart the networking after changing the network configuration? Message-ID: <CAOdo=<a href="mailto:SxT_B7ZjFXfX1qZ9VcOr3nH7LG%2Bdwi7NxhDHAt5McgFCA@mail.gmail.com">SxT_B7ZjFXfX1qZ9VcOr3nH7LG+dwi7NxhDHAt5McgFCA@mail.gmail.com</a>> Content-Type: text/plain; charset=UTF-8 On Fri, May 13, 2016 at 3:51 PM, Stephen P. Molnar <<a href="mailto:s.molnar@sbcglobal.net">s.molnar@sbcglobal.net</a>>> wrote: > > as root dhclient eth0 > > ------ Original Message ------ > From: "Zhengyu Guo" <<a href="mailto:zhengyuguobuaa@gmail.com">zhengyuguobuaa@gmail.com</a>>> > To: <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> > Sent: 5/13/2016 9:15:22 AM > Subject: How to restart the networking after changing the network > configuration? >> >> My question is how to restart the networking after changing the network >> configuration? >> >> I setup a bridge in my machine and I need to restart the network to make it >> work. However, If I use the following command it will not work. >> >> ~~~ >> /etc/network$ sudo service networking restart >> Job for networking.service failed because the control process exited with >> error code. See "systemctl status networking.service" and "journalctl -xe" >> for details. >> ~~~ >> But if I reboot the machine, the configuration will take effect without any >> problem. >> >> Therefore, I want to know if there are any alternative way that I can use >> for restart the networking without the need for rebooting. If you're using dhcp and not using "/etc/network/interfaces", you'd have to run "dhclient -r <physical_nic>", set up the bridge manually, "dhclient <bridge>". ------------------------------ Message: 3 Date: Sat, 14 May 2016 00:12:50 +0200 From: Tom H <<a href="mailto:tomh0665@gmail.com">tomh0665@gmail.com</a>> To: Ubuntu Users <<a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a>> Subject: Re: How to restart the networking after changing the network configuration? Message-ID: <CAOdo=SxW9ePpgm=<a href="mailto:AuDDqBi0kR9DZnBAMQZ4VnAo3YdRzKdWmQQ@mail.gmail.com">AuDDqBi0kR9DZnBAMQZ4VnAo3YdRzKdWmQQ@mail.gmail.com</a>> Content-Type: text/plain; charset=UTF-8 On Fri, May 13, 2016 at 5:19 PM, Zhengyu Guo <<a href="mailto:zhengyuguobuaa@gmail.com">zhengyuguobuaa@gmail.com</a>> wrote: > > auto eth0 > iface eth0 inet manual > > auto br0 > iface br0 inet static > address xxx.xxx.xxx.xxx > network xxx.xxx.xxx.xxx > netmask xxx.xxx.xxx.xxx > broadcast xxx.xxx.xxx.xxx > gateway xxx.xxx.xxx.xxx > bridge_ports eth0 > bridge_stp off > bridge_fd 0 > bridge_maxwait 0 You don't need to define eth0 in "/etc/network/interfaces". >From "man bridge-utils-interfaces": ----> The main extension is the bridge_ports option, with it you describe that the interface is a bridge and what ports does it have. These ports are the interfaces that are part of the bridge, and they shouldn't have any stanzas defining them on the interfaces file. <---- Please don't top-post. >From <a href="https://community.ubuntu.com/contribute/support/mailinglists/" target="_blank" rel="noreferrer">https://community.ubuntu.com/contribute/support/mailinglists/</a> : "Write your email underneath the email which you are replying to." ------------------------------ Message: 4 Date: Fri, 13 May 2016 16:37:57 -0700 From: Frank Chang <<a href="mailto:frankchang91@gmail.com">frankchang91@gmail.com</a>> To: <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Subject: How do we do programmatically set LD_LIBRARY_PATH for this scenario , mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. Message-ID: <<a href="mailto:CANuJMRqrTpwb_oarqUJBm9cSL2vugbZVnZPNEmJdHZWDKAPo4A@mail.gmail.com">CANuJMRqrTpwb_oarqUJBm9cSL2vugbZVnZPNEmJdHZWDKAPo4A@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" How do we do programmatically set LD_LIBRARY_PATH for this scenario? mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. AudioRecorder.exe requires a shared object named libaudiocontrol.so to perform its duties. This shared object has to be found in the LD_LIBRARY_PATH location. We will not have an Ubuntu Linux terminal to run when running in mono-service mode. Instead we need to start an Ubuntu Linux service as shown below: Auto-start Checklist for Upstart This section is a quick reference to make sure your service is set to automatically start. Configuration Checklist Make sure the service has a functional Upstart init script located at /etc/init/service.conf The /etc/init/service.conf file should contain a line like start on runlevel [2345] to enable automatic starting after a reboot The /etc/init/service.conf file should also contain a line like respawn to enable the service to respawn after a crash Make sure there is no override file for the service: /etc/init/service.override (There would be one only if you or another admin made one earlier) Stop, then start, the service: sudo initctl stop service sudo initctl start service Reboot the server. sudo reboot Here is another way make sure your service is set to automatically start. Auto-start Checklist for systemd This section is a quick reference to make sure your service is set to automatically start. Configuration Checklist Make sure the service has a functional systemd init script located at /etc/systemd/system/multi-user.target.wants/service.service Use the systemctl command to enable the service: sudo systemctl enable service.service This should create a symlink in /etc/systemd/system/multi-user.target.wants/ that looks like the following (do NOT create this manually): lrwxrwxrwx 1 root root 38 Aug 1 04:43 /etc/systemd/system/multi-user.target.wants/service.service -> /usr/lib/systemd/system/service.service This will enable automatic starting after a reboot. The /etc/systemd/system/multi-user.target.wants/service.service file should also contain a line like Restart=always under the [Service] section of the file to enable the service to respawn after a crash Reload the systemd daemon, followed by a restart of the service: sudo systemctl daemon-reload sudo systemctl restart service.service I read in this URL: <a href="http://stackoverflow.com/questions/10963498/mono-shared-library-under-linux-location" target="_blank" rel="noreferrer">http://stackoverflow.com/questions/10963498/mono-shared-library-under-linux-location</a> that you have to: LD_LIBRARY_PATH=. mono yourapp.exe. How might I do that for a Linux service? I also read Why change in LD_LIBRARY_PATH at Runtime dosen't Reflect on the Executable once the Executable gets loaded <<a href="http://stackoverflow.com/questions/19337926/why-change-in-ld-library-path-at-runtime-dosent-reflect-on-the-executable-once" target="_blank" rel="noreferrer">http://stackoverflow.com/questions/19337926/why-change-in-ld-library-path-at-runtime-dosent-reflect-on-the-executable-once</a>> . Could some expert comment on this URL and suggest a potential solution? Any help is greatly appreciated. -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.ubuntu.com/archives/ubuntu-users/attachments/20160513/c6b4215b/attachment-0001.html" target="_blank" rel="noreferrer">https://lists.ubuntu.com/archives/ubuntu-users/attachments/20160513/c6b4215b/attachment-0001.html</a>> ------------------------------ Message: 5 Date: Fri, 13 May 2016 19:09:35 -0500 From: Alejandro Visiedo Garc?a <<a href="mailto:alejandro.visiedo@gmail.com">alejandro.visiedo@gmail.com</a>> To: "Ubuntu user technical support, not for general discussions" <<a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a>> Subject: Re: How do we do programmatically set LD_LIBRARY_PATH for this scenario , mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. Message-ID: <<a href="mailto:5C655F97-F3A7-41FC-85E8-5DF28EE94EBD@gmail.com">5C655F97-F3A7-41FC-85E8-5DF28EE94EBD@gmail.com</a>> Content-Type: text/plain; charset="us-ascii" Change the program to execute for a script! Into the script export LD_LIBRARY_PATH to add the path of the library and then launch the executable file at the end of the script with the params received to the script! Regards! > On 13 May 2016, at 18:37, Frank Chang <<a href="mailto:frankchang91@gmail.com">frankchang91@gmail.com</a>> wrote: > > How do we do programmatically set LD_LIBRARY_PATH for this scenario? > > mono-service ./AudioRecorder.exe > where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. AudioRecorder.exe requires a shared object named libaudiocontrol.so to perform its duties. This shared object has to be found in the LD_LIBRARY_PATH location. > > We will not have an Ubuntu Linux terminal to run when running in mono-service mode. Instead we need to start an Ubuntu Linux service as shown below: > > Auto-start Checklist for Upstart > > This section is a quick reference to make sure your service is set to automatically start. > > Configuration Checklist > > Make sure the service has a functional Upstart init script located at /etc/init/service.conf > The /etc/init/service.conf file should contain a line like start on runlevel [2345] to enable automatic starting after a reboot > The /etc/init/service.conf file should also contain a line like respawn to enable the service to respawn after a crash > Make sure there is no override file for the service: /etc/init/service.override > (There would be one only if you or another admin made one earlier) > > Stop, then start, the service: > > sudo initctl stop service > sudo initctl start service > > Reboot the server. > > sudo reboot > Here is another way make sure your service is set to automatically start. > > Auto-start Checklist for systemd > > This section is a quick reference to make sure your service is set to automatically start. > > Configuration Checklist > > Make sure the service has a functional systemd init script located at /etc/systemd/system/multi-user.target.wants/service.service > Use the systemctl command to enable the service: > > sudo systemctl enable service.service > > This should create a symlink in /etc/systemd/system/multi-user.target.wants/ that looks like the following (do NOT create this manually): > lrwxrwxrwx 1 root root 38 Aug 1 04:43 /etc/systemd/system/multi-user.target.wants/service.service -> /usr/lib/systemd/system/service.service > > This will enable automatic starting after a reboot. > > The /etc/systemd/system/multi-user.target.wants/service.service file should also contain a line like Restart=always under the [Service] section of the file to enable the service to respawn after a crash > Reload the systemd daemon, followed by a restart of the service: > > sudo systemctl daemon-reload > sudo systemctl restart service.service > I read in this URL: > > <a href="http://stackoverflow.com/questions/10963498/mono-shared-library-under-linux-location" target="_blank" rel="noreferrer">http://stackoverflow.com/questions/10963498/mono-shared-library-under-linux-location</a> that you have to: LD_LIBRARY_PATH=. mono yourapp.exe. How might I do that for a Linux service? > > I also read Why change in LD_LIBRARY_PATH at Runtime dosen't Reflect on the Executable once the Executable gets loaded. > > Could some expert comment on this URL and suggest a potential solution? > > Any help is greatly appreciated. > > -- > 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" target="_blank" rel="noreferrer">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.ubuntu.com/archives/ubuntu-users/attachments/20160513/587b914b/attachment.html" target="_blank" rel="noreferrer">https://lists.ubuntu.com/archives/ubuntu-users/attachments/20160513/587b914b/attachment.html</a>> ------------------------------ -- 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" target="_blank" rel="noreferrer">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> End of ubuntu-users Digest, Vol 141, Issue 20 ********************************************* </blockquote></div> </div>