[Scion] Unable to run SCION after update

Claude Hähni claude.haehni at gmail.com
Fri Sep 27 14:33:06 CEST 2019


  Hi Siddharth,
When cloning, please make sure to clone the repository to the correct
location. In your  case this is:
/home/vagrant/go/src/github.com/netsec-ethz/scion-apps

Best regards,
Claude

Juan A. García-Pardo <juagargi at gmail.com> schrieb am Fr., 27. Sep. 2019,
14:21:

> Hi Siddharth,
> We didn't touch scion-apps/lib/scionutil and it still exists. If you are
> building scion-apps in a SCIONLab VM, these are the steps you would need:
> - install go 1.11
> - `go get github.com/kardianos/govendor`
> <http://github.com/kardianos/govendor>
> - `sudo apt-get install libpam0g-dev`  (needed by SCION ssh)
> - clone scion-apps
> - `govendor sync -v`  (this needs some 5 minutes to complete). You can run
> ./deps.sh instead, it is going to do the same.
> - `make`
>
> I just ran these steps myself inside a SCIONLab VM and it worked okay.
> Best regards,
>
> Juan A.
>
>
> On Fri, Sep 27, 2019 at 12:21 PM Siddharth Mehrotra <the4daspect at gmail.com
> >
> wrote:
>
> > Hi Juan,
> >
> > Thanks for the help. SCION works now!
> >
> > Regarding webapp, I tried to compile all scion-apps by ./deps.sh by
> > installing go => This is done.
> >
> > However, make install command runs into error:
> > cd helloworld/ && go build
> > helloworld.go:23:2: cannot find package "
> > github.com/netsec-ethz/scion-apps/lib/scionutil" in any of:
> >         /home/vagrant/go/src/scion-apps/vendor/
> > github.com/netsec-ethz/scion-apps/lib/scionutil (vendor tree)
> >         /usr/local/go/src/
> github.com/netsec-ethz/scion-apps/lib/scionutil
> > (from $GOROOT)
> >         /home/vagrant/go/src/
> > github.com/netsec-ethz/scion-apps/lib/scionutil (from $GOPATH)
> > Makefile:29: recipe for target 'helloworld/helloworld' failed
> > make: *** [helloworld/helloworld] Error 1
> >
> > This is becaus   github.com/netsec-ethz/scion-apps/lib/scionutil does
> not
> > exist anymore. I am not sure if this is still required. *Can a quick
> > update be performed in github code regarding same ?*
> >
> > Best Regards,
> > Siddharth
> >
> > On Fri, Sep 27, 2019 at 11:34 AM Juan A. García-Pardo <
> juagargi at gmail.com>
> > wrote:
> >
> >> Hi Siddharth,
> >> The scion apps should be available in packaged form next week. In the
> >> meantime, you can build them with a Go compiler >= 1.11 by cloning the
> >> scion-apps repo, running `./depsh.sh` and then `make`
> >> I am testing your 17-ffaa:1:cd2 user AS and it works fine. This are my
> >> steps:
> >> - Get the configuration from the Coordinator, uncompress it in a
> >> directory. Chdir to it
> >> - Run `vagrant up`. No errors are shown. Only a few red lines but with
> no
> >> real problems. Last line reads "SCIONLab VM ready"
> >> - Run `vagrant ssh` to log into the VM.
> >> - Run `ifconfig`. It shows the tun0 interface, with IP "10.0.0.44"
> >> - Ping the server using tun0 `ping -I tun0 10.0.8.1`. The server echoes
> >> back.
> >> - List SCION services with `systemctl list-dependencies scionlab.target`
> >> . All services are okay (they are shown duplicated, but it's a know
> systemd
> >> bug, no problems there).
> >> - Ping a core AS using SCION `scmp echo -local 17-ffaa:1:cd2,[127.0.0.1]
> >> -remote 17-ffaa:0:1101,[127.0.0.1]` . It works okay (for me with times
> >> ~6ms; that could change for you).
> >>
> >> Let's focus on this user AS of yours and find out what is not working. I
> >> will run this same configuration again this evening from a completely
> >> different network, just to check our firewall has not gone crazy again.
> I
> >> will send an email before I check again, but in the mean time, you could
> >> send us your Vagrant version and platform (e.g. vagrant for windows),
> and
> >> the complete /var/log/syslog file of your VM after `vagrant up` and
> >> `vagrant ssh`. The problem you seem to have is between the VPN client
> and
> >> server (that is the reason that SCION will not work). You can send the
> >> files to the mailing list or directly to me.
> >> Best regards,
> >>
> >> Juan A.
> >>
> >>
> >> On Fri, Sep 27, 2019 at 10:58 AM Siddharth Mehrotra <
> >> the4daspect at gmail.com> wrote:
> >>
> >>> Hi Juan,
> >>>
> >>> The problem still persists. I tried with another AS id's as well
> >>> 18-ffaa:1:cd3 & 17-ffaa:1:cd2, however result is same (the border
> router
> >>> service does not start & no tun0 found).
> >>>
> >>> Also, do you have any update on SCION-Apps? If not all, can webapp be
> >>> restored as per SCION update ?
> >>>
> >>> Best regards,
> >>> Siddharth
> >>>
> >>> On Thu, Sep 26, 2019 at 12:35 PM Juan A. García-Pardo <
> >>> juagargi at gmail.com>
> >>> wrote:
> >>>
> >>> > Hi Siddharth,
> >>> > I have answered you also to your email directly, but I'm copying the
> >>> answer
> >>> > here so it gets indexed.
> >>> > There were two problems:
> >>> > - We had experienced some problems with our firewall and the VPN in
> the
> >>> > attachment point Switzerland. Sometimes it would drop packets.
> >>> > - Your user AS ffaa:1:c32 is marked as deactivated. You have to go to
> >>> your
> >>> > AS list in the Coordinator (https://www.scionlab.org/user/) and
> click
> >>> on
> >>> > "Activate this AS". Wait 1-2 minutes and run `vagrant up` for that
> >>> user AS.
> >>> > Now your ASes should be able to start the VPN tunnel without problems
> >>> (type
> >>> > ifconfig in the VM and you should see an interface called tun0), and
> >>> the
> >>> > active ones will have a working border router.
> >>> > Best regards,
> >>> >
> >>> > Juan A.
> >>> >
> >>> >
> >>> > On Thu, Sep 19, 2019 at 2:28 PM Siddharth Mehrotra <
> >>> the4daspect at gmail.com>
> >>> > wrote:
> >>> >
> >>> > > Hi Juan,
> >>> > >
> >>> > > Thanks for the update, it is really helpful.
> >>> > >
> >>> > > 1) After checking status of my connection to SCION, I see
> >>> > > ● ├─scion-border-router at 17-ffaa_1_c32-1.service
> >>> > > ● ├─scion-border-router at 17-ffaa_1_c32-1.service
> >>> > >
> >>> > > as marked RED in color. I could not understand why this happened on
> >>> first
> >>> > > place, just after running vagrant ssh and  systemctl
> >>> list-dependencies
> >>> > > scionlab.target
> >>> > >
> >>> > > This appears even after restarting SCION services.
> >>> > >
> >>> > > 2) Still I can't find tun0 while running command ip a. The only
> >>> tunnel
> >>> > > interfaces appearing are: lo & enp0s3.
> >>> > >
> >>> > > 3) Is Scion web-app available?
> >>> > > I get this error: -bash: cd: /src/github.com/netsec-ethz: No such
> >>> file
> >>> > or
> >>> > > directory while navigating to web-apps.
> >>> > >
> >>> > > PS: Running SCION in a virtual machine – VPN approach
> >>> > >
> >>> > > Thanks,
> >>> > > Siddharth
> >>> > >
> >>> > > On Thu, Sep 19, 2019 at 1:01 PM Juan A. García-Pardo <
> >>> juagargi at gmail.com
> >>> > >
> >>> > > wrote:
> >>> > >
> >>> > > > Hi Siddharth,
> >>> > > > We have not yet upgraded the tutorials for everything, only the
> >>> > "updating
> >>> > > > SCION" one:
> >>> > > >
> >>> > >
> >>> >
> >>>
> https://netsec-ethz.github.io/scion-tutorials/scion_tricks/updating_scion/
> >>> > > > That said, almost all that you are seeing is normal: the
> >>> configuration
> >>> > > TGZ
> >>> > > > you get from the Coordinator is very small, because your VM will
> >>> get
> >>> > the
> >>> > > > full configuration from the Coordinator for you. Once you have
> run
> >>> > > `vagrant
> >>> > > > up`, you will see the directory /etc/scion contains a `gen`
> >>> directory
> >>> > > > inside. That one will have the full configuration.
> >>> > > > Also, the services and tools are now packaged. There is no $SC
> >>> > directory
> >>> > > > anymore. Things you can run to check:
> >>> > > > - dpkg -l |grep scion  # will list scion packages, hopefully
> >>> installed
> >>> > in
> >>> > > > your system
> >>> > > > - systemctl list-dependencies scionlab.target  # list status. In
> >>> Ubuntu
> >>> > > > 16.04 there is a systemd bug and the services will be listed
> twice
> >>> > > > - sudo systemctl restart scionlab.target  # restart all SCION
> >>> services
> >>> > > > - ls -l /var/log/scion  # list scion log files
> >>> > > > - ls -l /var/lib/scion  # list trust databases, etc
> >>> > > > - ls -l /etc/scion  # list scion configuration. The gen folder
> has
> >>> the
> >>> > > > same morphology as before, but the supervisord files are not used
> >>> > > >
> >>> > > > On the other hand, if you want to not use the packages and go
> back
> >>> to
> >>> > the
> >>> > > > developer way of doing things, you can briefly read about that
> >>> also in
> >>> > > the
> >>> > > > how to update SCION page from SCION tutorials, but basically
> >>> refers to
> >>> > > > stopping systemd for scionlab.target and cloning/building SCION
> >>> > yourself.
> >>> > > >
> >>> > > > The problem with the VPN is not clear at all though. I would like
> >>> to
> >>> > > > investigate a bit more about that. Can you try again? If you
> still
> >>> see
> >>> > > the
> >>> > > > problem the second time you try, we'll investigate further.
> >>> > > > Thanks and best regards,
> >>> > > >
> >>> > > > Juan A.
> >>> > > >
> >>> > > >
> >>> > > > On Wed, Sep 18, 2019 at 10:52 AM Siddharth Mehrotra <
> >>> > > the4daspect at gmail.com>
> >>> > > > wrote:
> >>> > > >
> >>> > > >> Hi all,
> >>> > > >>
> >>> > > >> I tried to run SCION after update from attachment point with
> >>> ETHZ-AP
> >>> > as
> >>> > > >> downloading new configuration. I'm currently installing inside a
> >>> VM
> >>> > with
> >>> > > >> use of OPENVPN to connect to SCION Lab.
> >>> > > >>
> >>> > > >> I observed following scenarios:
> >>> > > >>
> >>> > > >> 1) After extracting configuration file from SCION coordination
> >>> > service,
> >>> > > >> the
> >>> > > >> contents are reduced to:
> >>> > > >> Mode                LastWriteTime         Length Name
> >>> > > >> ----                -------------         ------ ----
> >>> > > >> d-----       18-09-2019     10:25                .vagrant
> >>> > > >> d-----       18-09-2019     10:23                gen
> >>> > > >> -a----       13-06-2019     09:25           3618 README.md
> >>> > > >> -a----       13-06-2019     09:25           3068 run.sh
> >>> > > >> -a----       18-09-2019     10:22           3813
> >>> > > >> scion_lab_17-ffaa_1_c32.tar.gz
> >>> > > >> -a----       18-09-2019     10:34              0
> >>> > > >> ubuntu-xenial-16.04-cloudimg-console.log
> >>> > > >> -a----       18-09-2019     10:24           2484 Vagrantfile
> >>> > > >>
> >>> > > >> Many SCION services are missing.
> >>> > > >>
> >>> > > >> 2) Although I was able to run the VM successfully and SSH to
> >>> SCION.
> >>> > > >> However, it seems the connection to SCION was not successful.
> The
> >>> > below
> >>> > > >> command is after running Vagrant up:
> >>> > > >>
> >>> > > >> default: WARNING:WARNING!: VPN could be unready. SCION may fail
> to
> >>> > > start.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> > > >>
> >>> > >
> >>> >
> >>>
> /etc/systemd/system/scionlab.target.wants/scion-border-router at 17-ffaa_1_c32-1.service
> >>> > > >> to /lib/systemd/system/scion-border-router at .service.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> > > >>
> >>> > >
> >>> >
> >>>
> /etc/systemd/system/scionlab.target.wants/scion-certificate-server at 17-ffaa_1_c32-1.service
> >>> > > >> to /lib/systemd/system/scion-certificate-server at .service.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> > > >>
> >>> > >
> >>> >
> >>>
> /etc/systemd/system/scionlab.target.wants/scion-path-server at 17-ffaa_1_c32-1.service
> >>> > > >> to /lib/systemd/system/scion-path-server at .service.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> > > >>
> >>> > >
> >>> >
> >>>
> /etc/systemd/system/scionlab.target.wants/scion-beacon-server at 17-ffaa_1_c32-1.service
> >>> > > >> to /lib/systemd/system/scion-beacon-server at .service.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> > > >>
> >>> > >
> >>> >
> >>>
> /etc/systemd/system/scionlab.target.wants/scion-daemon at 17-ffaa_1_c32.service
> >>> > > >> to /lib/systemd/system/scion-daemon at .service.
> >>> > > >>     default: Created symlink from
> >>> > > >>
> >>> /etc/systemd/system/scionlab.target.wants/scion-dispatcher.service to
> >>> > > >> /lib/systemd/system/scion-dispatcher.service.
> >>> > > >>     default: configure time sync
> >>> > > >>     default: ntp.service is not a native service, redirecting to
> >>> > > >> systemd-sysv-install
> >>> > > >>     default: Executing /lib/systemd/systemd-sysv-install enable
> >>> ntp
> >>> > > >>     default: configure unattended upgrades (automatic security
> >>> > upgrades)
> >>> > > >>     default: SCIONLab VM ready
> >>> > > >>
> >>> > > >> 3) When I am inside the VM and I tried to check the connection I
> >>> was
> >>> > > >> surprised to see this:
> >>> > > >>
> >>> > > >> vagrant at scionlab-ffaa-1-c32:~$ checkbeacons
> >>> > > >> checkbeacons: command not found
> >>> > > >>
> >>> > > >> Also fo this:
> >>> > > >> vagrant at scionlab-ffaa-1-c32:~$ tail -f $SC/logs/bs*.DEBUG
> >>> > > >> tail: cannot open '/logs/bs*.DEBUG' for reading: No such file or
> >>> > > directory
> >>> > > >> tail: no files remaining
> >>> > > >>
> >>> > > >> 4)Memory Test:
> >>> > > >> vagrant at scionlab-ffaa-1-c32:~$ df -h
> >>> > > >> Filesystem      Size  Used Avail Use% Mounted on
> >>> > > >> udev            992M     0  992M   0% /dev
> >>> > > >> tmpfs           200M  3.1M  197M   2% /run
> >>> > > >> /dev/sda1       9.7G  1.4G  8.3G  14% /
> >>> > > >> tmpfs          1000M     0 1000M   0% /dev/shm
> >>> > > >> tmpfs           5.0M     0  5.0M   0% /run/lock
> >>> > > >> tmpfs          1000M     0 1000M   0% /sys/fs/cgroup
> >>> > > >> vagrant         136G   73G   64G  54% /vagrant
> >>> > > >> tmpfs           200M     0  200M   0% /run/user/1000
> >>> > > >>
> >>> > > >> 5) tun0 not found after performing ip a command.
> >>> > > >>
> >>> > > >> PS: I am using Oracle Virtual Box 6.0 , Is it the compatibility
> >>> issue
> >>> > ?
> >>> > > >> PS: I was able to run SCION successfully before the update with
> >>> same
> >>> > > >> Virtual Box version and vagrant also.
> >>> > > >>
> >>> > > >> Please look into this issue.
> >>> > > >>
> >>> > > >> Thanks,
> >>> > > >> Sid
> >>> > > >> _______________________________________________
> >>> > > >> Scion mailing list
> >>> > > >> Scion at lists.inf.ethz.ch
> >>> > > >> https://lists.inf.ethz.ch/mailman/listinfo/scion
> >>> > > >>
> >>> > > >
> >>> > > _______________________________________________
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> >>> > >
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> >>
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