c1vhosting - IPv6 issue - I need a bit of help of the community

MumblyMumbly
edited September 2022 in Help

As I posted here https://lowendspirit.com/discussion/comment/98604/#Comment_98604 I purchased two VPSes from this company. Soon after that IPv6 died. On the both servers at the same time. Since then we're going back and forth with this for 3 weeks now.

Sometimes he says that it's faulty core router, sometimes that I screwed up OS (at newly reinstalled vps I haven't even accessed yet?), sometimes some third issue...

He found a way to "restart" IPv6 from a host node (or router?), but it don't stay UP persistenly. He run it manually and then say "hey it works" but after some time IPv6 die. And never come back after the reboot.

So what I would like to ask is if one reputable member would be willing to log into newly reinstalled VPSes and monitor it for lets say 48 hours. In the meantime you're welcome to reboot it, secure it, or whatever... You can play with it, just do do anything nasty, please. I informed host about this test.

In case IPv6 stop to work I don't mind if you tinker with it (I can reinstall it for you again), etc... but what's important to me is to know if IPv6 on a fresh reinstalled VPS stoped to work on you and not on me.

You don't need to have some super admin skills. Infact I just want to prove that IPv6 die (and don't come back on reboot) without me even touching it after the reinstall (you will be the only one who's logged in from the beginning).

He may restart IPv6 every now and then manually but you will know if that's the case or IPv6 work as it should.

Distro will be Debian 10 (his latest excuse it that infact only Debian 11 doesn't work properly, but Debian 10 does).

Who's willing to spend few minutes on this issue? I will pm you IP and pass.

«1

Comments

  • MumblyMumbly
    edited September 2022

    In case there's more than one person interested to have a bit of fun I have two VPSes to test simultaneously.
    Pretty please... it's just few minutes to log into newly provisioned vps and check if IPv6 work by default. Everything else (tinkering...) would be extra, but you don't need to do this.

  • ehabehab

    for IPv6 i nominate @yoursunny .... he is the man.

  • MumblyMumbly
    edited September 2022

    What about both (there are two VPSes)? You don't need to fix it, just to check if it work with a newly provisioned vps without me intervening :)

  • ehabehab
    edited September 2022

    i would have loved to help. I haven't used/configured ipv6 at all ... this is due to my provider and at office use only ipv4.

  • MumblyMumbly
    edited September 2022

    VPS have IPv4 too and it work, so it's not required home IPv6 connectivity to get in or something. There also no need to configure anything (although checking default settings could be welcome, maybe we both with host overlooked something) just check if IPv6 work at all and connectivity stays up.

    All what's needed to do is sometning like this:

    apt-get update -y && apt-get upgrade -y (or even without that)
apt-get install curl

    and then

    curl ipv6.google.com

  • ehabehab

    in this case, go ahead , create user : ehab
    and pm me the ip , password

  • MumblyMumbly

    You get root. That's the whole point. It's freshly re-installed vps from the control panel and I won't log in.

  • MumblyMumbly

    @ehab (thanks man!) got one. I need one candidate more for the second vps.
    Thank you upfront.

  • pikachupikachu

    @Mumbly said:
    @ehab (thanks man!) got one. I need one candidate more for the second vps.
    Thank you upfront.

    Hit me up.

  • MumblyMumbly
    edited September 2022

    @stevewatson301 said:

    @Mumbly said:
    @ehab (thanks man!) got one. I need one candidate more for the second vps.
    Thank you upfront.

    Hit me up.

    Awesome :)
    Please post your findings here.

  • ralfralf

    I find it very strange that a hosting provider with their own datacentre who's been running their business since 2008 seems to only have the sysadmin skills of someone who started a few months ago... ;)

  • MumblyMumbly

    I know, I know... and I fell for it, silly me... :s

  • ehabehab
    edited September 2022

    hey @yoursunny

    root@pushups:~# ping6 ipv6.google.com
    PING ipv6.google.com(mil04s43-in-x0e.1e100.net (2a00:1450:4002:402::200e)) 56 data bytes
    From xxx: icmp_seq=1 Destination unreachable: Address unreachable

    it resolves dns but does not route ? what can be the problem ... gateway is set statically. What can be the problem?

    interface ip6 is up

    root@pushups:~# ping6 -c 1 ::1
    PING ::1(::1) 56 data bytes
    64 bytes from ::1: icmp_seq=1 ttl=64 time=0.042 ms
    --- ::1 ping statistics ---
    1 packets transmitted, 1 received, 0% packet loss, time 0ms
    rtt min/avg/max/mdev = 0.042/0.042/0.042/0.000 ms

    but does not route outside?

    @stevewatson301 maybe same network works, i will pm you ip6 of the vps to check if same network works.

  • DPDP OG

    Router-level misconfiguration maybe.

    "The imitator dooms himself to hopeless mediocrity." — Ralph Waldo Emerson

  • ehabehab

    before i fall asleep.

    1. /etc/network/interfaces ; get overwritten on reboots. chattr +i does not help here.
    2. disabling ip6 from sysctl.d / reboot / add ip6 manually is up but not route outside.
    3. no rescue or boot from live iso available.
    4. vmx is available but does it help if one boots with dhcp network for ip6?

    point 4 needs time, may try last.

  • ehabehab

    @TheDP said:
    Router-level misconfiguration maybe.

    i am betting on this.

  • ralfralf

    @ehab said:

    From xxx: icmp_seq=1 Destination unreachable: Address unreachable

    The xxx here might be important as it's returned by the actual host that failed to route. It might be your local IPv6 address in which case it's your problem or it's something further away in which case it's their routing.

    You don't need to post it, just check it against the IPv6 address you set and that of the gateway. And if it's neither it's something further away.

  • MumblyMumbly

    VPS rebuilt with Centos OS per @ehab 's request. I haven't tryed it before, so more than welcome for trying it.

  • JanevskiJanevski OG
    edited September 2022

    @ehab
    Something somethig, advertisement interval values in radvd.conf on the IPv6 router.
    Perhaps.
    https://github.com/radvd-project/radvd/blob/master/radvd.conf.example

  • MumblyMumbly
    edited September 2022

    From what I noticed admin know what's the issue, because everytime when I re-open support ticket he fix IPv6 connectivity, but sadly he don't know how to do it to stick. Usually IPv6 connectivity die within next few minutes or after the first vps reboot.
    It's enough for him to say "look, IPv6 work" when he respond to the ticket but in reality it's just annoying, because most of the time it does not work.

  • ehabehab

    after OS reinstall same problem.

    Its now confirmed out of the box ip6 does not work.

    i have no other ideas to try. If someone else want to pick up the vps then they can with Mumbly now.

  • MumblyMumbly
    edited September 2022

    @ehab said:
    after OS reinstall same problem.

    Its now confirmed out of the box ip6 does not work.

    i have no other ideas to try. If someone else want to pick up the vps then they can with Mumbly now.

    Thank you for all your time and effort. It was very kind of you to trying it. I appreciate it.

  • ehabehab

    you are welcome Mumbly ....
    please reinstall and change password ... or just shut it down.

    good night.

  • pikachupikachu
    edited September 2022

    Apologies for the delay @Mumbly, I slept off soon after. From here, IPv6 never worked on the first try.

    Doesn't look good on the first try:

    root@1117:~# ip -6 neigh
fe80::b0ab:3bff:fe28:611a dev eth0 lladdr b2:ab:3b:28:61:1a STALE
2a05:4140:3::474 dev eth0 lladdr b2:ab:3b:28:61:1a STALE
2a05:4140:3::1 dev eth0  FAILED

    Connectivity within their network seems fine:

    root@1117:~# ping -6 2a05:4140:3::474
PING 2a05:4140:3::474(2a05:4140:3::474) 56 data bytes
64 bytes from 2a05:4140:3::474: icmp_seq=1 ttl=64 time=0.074 ms
64 bytes from 2a05:4140:3::474: icmp_seq=2 ttl=64 time=0.093 ms
64 bytes from 2a05:4140:3::474: icmp_seq=3 ttl=64 time=0.075 ms
64 bytes from 2a05:4140:3::474: icmp_seq=4 ttl=64 time=0.076 ms
64 bytes from 2a05:4140:3::474: icmp_seq=5 ttl=64 time=0.082 ms
64 bytes from 2a05:4140:3::474: icmp_seq=6 ttl=64 time=0.108 ms

    But not outside:

    ping -6 google.com 
PING google.com(mil04s43-in-x0e.1e100.net (2a00:1450:4002:402::200e)) 56 data bytes
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=1 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=2 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=3 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=4 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=5 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=6 Destination unreachable: Address unreachable

    ping -6 icanhazip.com 
PING icanhazip.com(2606:4700::6812:7261 (2606:4700::6812:7261)) 56 data bytes
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=1 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=2 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=3 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=4 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=5 Destination unreachable: Address unreachable
From 2a05:4140:3::730 (2a05:4140:3::730): icmp_seq=6 Destination unreachable: Address unreachable

    Although my "IPv6" skills aren't quite up there, sometimes accepting router advertisements causes issues, so I set net.ipv6.conf.all.accept_ra = 0 and rebooted the system, to no avail. Though, since this is a LXC VPS, I'm not sure if sysctl configuration is supposed to work, either.

    You should ask the provider to fix their IPv6 network and/or provide the correct configuration for IPv6 to work.

    Edit: Since disabling RAs didn't help, I removed said configuration and rebooted. Oh, and look, the neighbor table doesn't have any entries for IPv6 😂

    root@1117:~# ip -6 neigh
  • MumblyMumbly
    edited September 2022

    There's no delay and I am grateful for your contribution as well. Thank you very much :)

    If there's anyone else willing to try it you're more than welcome. There are several standard templates (CentOS, Debian and Ubuntu) available and you can try with any of them (but there's no ISO option).

    I don't expect from anyone to "fix it", just to try it and report his findings here. Maybe at some point host will realize that it's not about "it work but your settings did something..." but actually hire proper sys admin support to fix network issue for him.

  • pikachupikachu

    @ehab said: it resolves dns but does not route ? what can be the problem ... gateway is set statically.

    DNS resolution is just a AAAA record lookup, which can happen over IPv4 and IPv6. The provider in question has their network/routing configuration fucked up.

    @Mumbly said: If there's anyone else willing to try it you're more than welcome. There are several standard templates (CentOS, Debian and Ubuntu) available and you can try with any of them (but there's no ISO option).

    Time to tag the provider on this thread?

  • MumblyMumbly

    @stevewatson301 said:
    Time to tag the provider on this thread?

    I will let him know via support ticket. Before I opened this thread he was informed about those independent tests.

  • MumblyMumbly
    edited September 2022

    Update.
    This guy still can't get over it with the fact that there's issue on their own side and started to threat with service termination because of sharing tickets are agains his TOS.
    Anyone saw any of his ticket shared here?
    He most likely thinks that his TOS (in italian language) enforce that person isn't allowed even to speak about experience with his hosting company or something.
    I suggested refund and parting way as the best possible outcome for both of us at this stage but it seems like he's in need to keep my money no matter what or something...

  • pikachupikachu

    It's simple, really. Tell them no tickets were shared and they're falsely claiming a violation of TOS, point out their inability to provide the advertised services.

    If they're still haggling, file a chargeback.

  • cybertechcybertech OGBenchmark King YABS 24/7/365

    @c1vhosting care to clarify?

    I bench YABS 24/7/365 unless it's a leap year.

  • ehabehab

    i didn't know @c1vhosting is here.
    kindly fix ipv6 or refund Mumbly if he has the right for a claim.

  • yoursunnyyoursunny OG

    @stevewatson301 said:
    Doesn't look good on the first try:

    root@1117:~# ip -6 neigh
fe80::b0ab:3bff:fe28:611a dev eth0 lladdr b2:ab:3b:28:61:1a STALE
2a05:4140:3::474 dev eth0 lladdr b2:ab:3b:28:61:1a STALE
2a05:4140:3::1 dev eth0  FAILED

    This suggests you have link-local addresses enabled.
    Your container may transmit Neighbor Solicitation for the gateway's address, using link-local address as the source address.
    If ebtables blocks link-local addresses, the Neighbor Solicitation cannot go out, and you see FAILED.

    Normally I use fully static configuration:

    # /etc/netplan/01-netcfg.yaml
network:
  version: 2
  ethernets:
    uplink:
      match:
        macaddress: 00:16:3e:28:f7:e9
      set-name: uplink
      dhcp4: false
      dhcp6: false
      link-local: []
      addresses:
        - 192.0.2.6/24
        - 2001:db8:5:1124::1/112
      routes:
        - to: 0.0.0.0/0
          via: 192.0.2.1
          on-link: true
        - to: ::/0
          via: 2001:db8:0:100::1
          on-link: true
      nameservers:
        addresses:
        - 8.8.8.8
        - 2001:4860:4860::8888
        - 1.1.1.1
        - 2606:4700:4700::1111

    Even that, sometimes the provider's router doesn't respond to Neighbor Solicitation quickly.
    Since the router replacement rarely happens, I can statically save a Neighbor entry too.

    ; /etc/systemd/system/ip6neigh-router.service
[Unit]
Description=Set ip neigh entry for IPv6 router
After=network-online.target
Wants=network-online.target

[Service]
Type=oneshot
ExecStart=ip neigh replace 2001:db8:0:100::1 lladdr 00:19:a9:5e:2c:00 nud noarp dev uplink

[Install]
WantedBy=multi-user.target

    After all these, if it still doesn't work, there's nothing more you can fix, and it must be provider's fault.

    We accept Karma donations for the last flan. 🍮 affbrr

  • ehabehab

  • ehabehab

    @yoursunny change your profile pic to what you look like now..... i am tired of this kid pic..... and it makes me feel like your grandpapa.

  • yoursunnyyoursunny OG
    edited September 2022

    @ehab said:
    @yoursunny change your profile pic to what you look like now..... i am tired of this kid pic..... and it makes me feel like your grandpapa.

    The profile picture is part of one's online identify.
    You shouldn't change it ever.
    https://medium.com/@rrhoover/why-i-never-change-my-profile-pic-72de0daa2785

    On certain anniversaries of my profile picture, I re-create it:

    However, this outfit is falling apart after 12 years of abuse (including bushwhacking and rolling in the mud), so this practice may not continue for long.

    We accept Karma donations for the last flan. 🍮 affbrr

  • JanevskiJanevski OG

    @ehab said:
    i didn't know @c1vhosting is here.
    kindly fix ipv6 or refund Mumbly if he has the right for a claim.

    This.

  • ehabehab

    @yoursunny said:
    However, this outfit is falling apart after 12 years of abuse (including bushwhacking and rolling in the mud), so this practice may not continue for long.

    may you have long youth... and health... and lots of sex.

  • MumblyMumbly

    Quick update.

    We're moving finally. After 3 weeks of going back and forth they found and issue, internal router is acting up. For now they are able to "restart" IPv6 connectivity, it work for some short time... and then just die.
    Although we established in this thread that it's not issue on my side and he confimed it with "internal router issue", I refuse to log into vps before I won't be sure that IPv6 work properly. Right now it's down on the both servers (ping.pe and uptimemonitor check).
    Damn frustrating, but at least he won't blame me for broke it some time I hope... This can be really annoying. Especially with newly re-installed vps I didn't even touch yet.

  • JanevskiJanevski OG

    The hosting business is like hostel business. Clients want hot water, the landlord shuts it down, etc.

    @ehab Check out this channel:
    https://m.youtube.com/c/PPPeter1/videos

  • kasodkkasodk Retired
    edited September 2022

    @ehab said:
    hey @yoursunny

    root@pushups:~# ping6 ipv6.google.com
    PING ipv6.google.com(mil04s43-in-x0e.1e100.net (2a00:1450:4002:402::200e)) 56 data bytes
    From xxx: icmp_seq=1 Destination unreachable: Address unreachable

    it resolves dns but does not route ? what can be the problem ... gateway is set statically. What can be the problem?

    interface ip6 is up

    root@pushups:~# ping6 -c 1 ::1
    PING ::1(::1) 56 data bytes
    64 bytes from ::1: icmp_seq=1 ttl=64 time=0.042 ms
    --- ::1 ping statistics ---
    1 packets transmitted, 1 received, 0% packet loss, time 0ms
    rtt min/avg/max/mdev = 0.042/0.042/0.042/0.000 ms

    but does not route outside?

    @stevewatson301 maybe same network works, i will pm you ip6 of the vps to check if same network works.

    Some of Google's CDN servers don't respond to ping/ping6.
    I can't ping ipv6.google.com (mil04s51-in-x0e.1e100.net) from one of my servers, but everything works fine.

    test with:
    curl ipv6.google.com

    or traceroute.

  • ehabehab

    @Janevski said:
    The hosting business is like hostel business. Clients want hot water, the landlord shuts it down, etc.

    @ehab Check out this channel:
    https://m.youtube.com/c/PPPeter1/videos

    hilarious find .... this guy is funny even with all the stereo types he portrays. Already saw some 20min of worst hotel and all the time i was thinking of hostsolutions in romain if you recall marius ....

    keep those finds coming :) Thank you

  • ralfralf

    @Janevski said:
    The hosting business is like hostel business. Clients want hot water, the landlord shuts it down, etc.

    @ehab Check out this channel:
    https://m.youtube.com/c/PPPeter1/videos

    Thanks to your recommendation, I've just wasted 2 hours!

  • MumblyMumbly
    edited September 2022

    Quick update (if someone's curious)

    Since yesterday my findings are next:

    1. if I reboot VPS (via control panel, I won't log in until this get fixed) sometimes IPv6 come back on the reboot, sometimes don't. Quick reboot don't kill it always.
    2. if I power down VPS and after some minute or less power it up IPv6 mostly don't come back. It stays dead.
    3. if I don't do anything IPv6 die by itself after some time, after few hours of downtime come back for few minutes (or they started it manually? - I don't know what's the reason for IPv6 coming back around the same time for both VPSes), and then die again.

    That's how it looks like:


    (I was sleeping those last 8 hours, no reboots from me, it was dying by itself)

    I am not very optimistic about them able to fix issue and they of course don't want to hear anything about parting ways and refund. I have two yearly VPSes with them, one paid full price and the other discounted (from LES offer). Situation is identical on the both.

    I decided to give them some more time (not because I am eager to stay with them as I lost all the confidence about their competence, but because I don't like nasty endings), but if they won't be able o fix it in the next few days I will most likely open case with paypal anyway. Soon it will be month over since this started. That's some impressive long time for a "datacenter" to deal with issue like that without being able to fix it.

  • JanevskiJanevski OG

    @ehab @ralf

    Check out his Africa series playlist:
    https://www.youtube.com/watch?v=JiPKnOyG5zI&list=PLPtu9cNe7fCmbpKMLw2vbm8VMaQUJLJdv
    Including the episode when he got malaria.

  • foxonefoxone OG

    @ralf said:
    I find it very strange that a hosting provider with their own datacentre who's been running their business since 2008 seems to only have the sysadmin skills of someone who started a few months ago... ;)

    How dare you come up with those accusations!

  • ralfralf

    @Janevski said:
    @ehab @ralf

    Check out his Africa series playlist:
    https://www.youtube.com/watch?v=JiPKnOyG5zI&list=PLPtu9cNe7fCmbpKMLw2vbm8VMaQUJLJdv
    Including the episode when he got malaria.

    Just watched the first few, including the running one. Kind of stupid thing I'd do, except I'd be using my Garmin watch to log the route.

  • chrischris

    @yoursunny said:

    @ehab said:
    @yoursunny change your profile pic to what you look like now..... i am tired of this kid pic..... and it makes me feel like your grandpapa.

    The profile picture is part of one's online identify.
    You shouldn't change it ever.
    https://medium.com/@rrhoover/why-i-never-change-my-profile-pic-72de0daa2785

    On certain anniversaries of my profile picture, I re-create it:

    However, this outfit is falling apart after 12 years of abuse (including bushwhacking and rolling in the mud), so this practice may not continue for long.

    Crowdfund this outfit to be repaired, it should continue

  • chrischris

    @Mumbly said:
    Quick update (if someone's curious)

    Since yesterday my findings are next:

    1. if I reboot VPS (via control panel, I won't log in until this get fixed) sometimes IPv6 come back on the reboot, sometimes don't. Quick reboot don't kill it always.
    2. if I power down VPS and after some minute or less power it up IPv6 mostly don't come back. It stays dead.
    3. if I don't do anything IPv6 die by itself after some time, after few hours of downtime come back for few minutes (or they started it manually? - I don't know what's the reason for IPv6 coming back around the same time for both VPSes), and then die again.

    That's how it looks like:


    (I was sleeping those last 8 hours, no reboots from me, it was dying by itself)

    I am not very optimistic about them able to fix issue and they of course don't want to hear anything about parting ways and refund. I have two yearly VPSes with them, one paid full price and the other discounted (from LES offer). Situation is identical on the both.

    I decided to give them some more time (not because I am eager to stay with them as I lost all the confidence about their competence, but because I don't like nasty endings), but if they won't be able o fix it in the next few days I will most likely open case with paypal anyway. Soon it will be month over since this started. That's some impressive long time for a "datacenter" to deal with issue like that without being able to fix it.

    Yes, but he can't get into the datacenter if all his clothes are in the wardrobe aswell. Please don't be so unreasonable.

  • yoursunnyyoursunny OG
    edited September 2022

    @chris said:

    @yoursunny said:

    @ehab said:
    @yoursunny change your profile pic to what you look like now..... i am tired of this kid pic..... and it makes me feel like your grandpapa.

    The profile picture is part of one's online identify.
    You shouldn't change it ever.
    https://medium.com/@rrhoover/why-i-never-change-my-profile-pic-72de0daa2785

    On certain anniversaries of my profile picture, I re-create it:

    However, this outfit is falling apart after 12 years of abuse (including bushwhacking and rolling in the mud), so this practice may not continue for long.

    Crowdfund this outfit to be repaired, it should continue

    This tank top looks almost identical.
    Are you gonna send me one?

    TSLA Men's Sleeveless Workout Shirts
    (click picture to see product page)

    We accept Karma donations for the last flan. 🍮 affbrr

  • BrueggusBrueggus OG

    @yoursunny said: This tank top looks almost identical.
    Are you gonna send me one?

    90 % Polyester, 10 % Elastan

    Pick a proper one not made from plastic bottles and I'll order it for you.

    dnscry.pt - Public DNSCrypt resolvers hosted by LowEnd providers • Need a free NAT LXC? -> https://microlxc.net/

Sign In or Register to comment.