Re: Any changes in kernels the last month (Iptables related)
Hi all kernel 3.2.0-68 solved it, i now have 17-18mbit upload on LAN (on WLAN, still need to tune a bit then... too slow) Kind regards Kim On Fri, Sep 5, 2014 at 6:54 PM, Joseph Salisbury < joseph.salisb...@canonical.com> wrote: > On 09/05/2014 12:44 PM, Doug Smythies wrote: > > On 2014.09.05 09:22 Joseph Salisbury wrote: > > > >> On 09/05/2014 09:58 AM, Doug Smythies wrote: > >>> On 2014.09.05 01:10 Kim Emax wrote: > >>> > >>> ... > >>> Anyway, and in my case, the issue is resolved in the next kernel, or > by going back to the previous kernel. > >>> > >>> Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC > >>> 2014 x86_64 x86_64 x86_64 GNU/Linux > >>> > >> Hi Doug, > >> > >> When you say it was resolved by going to the next kernel, do you mean > >> you apply the latest updates and the next kernel is what came in with > that(3.2.0-68)? > > Yes. > > > >> Or do you mean the next kernel that is in the next Ubuntu release like > Trusty or Utopic. > > No. > > > >> Does the bug exists in 3.2.0-67 but not 3.2.0-68? > > Yes. > > > > Sorry, for my lack of clarity. > > And also, when I said "or by going back to the previous kernel", > > I should have said the previous kernel that I had, as I missed a couple. > > So that was 3.2.0-60.91 > > > > My issue seems to have been that bug report that Hirotaka Yamamoto > pointed to earlier. > > > > ... Doug > > > > > Thanks for the info, Doug. So it sounds like this bug is already fixed. > > Kim, can you apply the latest Trusty updates or upgrade your kernel to > the latest version in updates and see if this bug is also fixed for you? > > Thanks, > > Joe > > -- -- Take care Kim Emax http://emax.dk -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Any changes in kernels the last month (Iptables related)
On 09/05/2014 12:44 PM, Doug Smythies wrote: > On 2014.09.05 09:22 Joseph Salisbury wrote: > >> On 09/05/2014 09:58 AM, Doug Smythies wrote: >>> On 2014.09.05 01:10 Kim Emax wrote: >>> >>> ... >>> Anyway, and in my case, the issue is resolved in the next kernel, or by >>> going back to the previous kernel. >>> >>> Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC >>> 2014 x86_64 x86_64 x86_64 GNU/Linux >>> >> Hi Doug, >> >> When you say it was resolved by going to the next kernel, do you mean >> you apply the latest updates and the next kernel is what came in with >> that(3.2.0-68)? > Yes. > >> Or do you mean the next kernel that is in the next Ubuntu release like >> Trusty or Utopic. > No. > >> Does the bug exists in 3.2.0-67 but not 3.2.0-68? > Yes. > > Sorry, for my lack of clarity. > And also, when I said "or by going back to the previous kernel", > I should have said the previous kernel that I had, as I missed a couple. > So that was 3.2.0-60.91 > > My issue seems to have been that bug report that Hirotaka Yamamoto pointed to > earlier. > > ... Doug > > Thanks for the info, Doug. So it sounds like this bug is already fixed. Kim, can you apply the latest Trusty updates or upgrade your kernel to the latest version in updates and see if this bug is also fixed for you? Thanks, Joe -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
RE: Any changes in kernels the last month (Iptables related)
On 2014.09.05 09:22 Joseph Salisbury wrote: > On 09/05/2014 09:58 AM, Doug Smythies wrote: >> On 2014.09.05 01:10 Kim Emax wrote: >> >>... >> Anyway, and in my case, the issue is resolved in the next kernel, or by >> going back to the previous kernel. >> >> Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC >> 2014 x86_64 x86_64 x86_64 GNU/Linux >> > Hi Doug, > > When you say it was resolved by going to the next kernel, do you mean > you apply the latest updates and the next kernel is what came in with > that(3.2.0-68)? Yes. > Or do you mean the next kernel that is in the next Ubuntu release like Trusty > or Utopic. No. > Does the bug exists in 3.2.0-67 but not 3.2.0-68? Yes. Sorry, for my lack of clarity. And also, when I said "or by going back to the previous kernel", I should have said the previous kernel that I had, as I missed a couple. So that was 3.2.0-60.91 My issue seems to have been that bug report that Hirotaka Yamamoto pointed to earlier. ... Doug -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Any changes in kernels the last month (Iptables related)
On 09/05/2014 09:58 AM, Doug Smythies wrote: > On 2014.09.05 01:10 Kim Emax wrote: > >> I was wondering if there´s been any changed in the later kernels? >> >> I´m using a ubuntu server with tow nics as a router, firewall, DHCP etc. >> The last month out of nowhere and without any changes (other > than regular >> updates from apt) my LAN has been fucked on upload (0.07mbit), while the WAN >> has +40Mbit. I´ve rebooted switches and WLAN > router, changed the LAN nic >> and >> has a laptop directly to the router, no luck. >> By changing in the iptables rules i´ve managed to tweak the LAN upload to >> 1-2mbit, >> still works really bad on LAN though. Taking a test > at >> hastighedstest.tdc.dk shows >> NO speed at first, then after a while it goes up a bit up to 3mbit, then >> falls back >> and stays around > 1mbit. Wierd behaviour. >> Current Kernel: 3.2.0-67-generic, Ubuntu 12.04 > Yes, the same thing happened to my Ubuntu 12.04 server which is my main > router to > my LAN with the same kernel. > > The lost time and frustration trying to figure it out was staggering. > I also suffered significant collateral damage. > > In my case the root issue was MTU and some new enforcement thereof, giving a > lot > ICMP packets saying something like: > "ICMP port unreachable, packet too long and don't fragment bit is set" > > O.K. so the real root issue is that some clients (windows clients and only a > couple of NIC cards (it seems)) ignore the MTU and send larger packets. > > Anyway, and in my case, the issue is resolved in the next kernel, or by going > back to the previous kernel. > > Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC 2014 > x86_64 x86_64 x86_64 GNU/Linux > > ... Doug > > > Hi Doug, When you say it was resolved by going to the next kernel, do you mean you apply the latest updates and the next kernel is what came in with that(3.2.0-68)? Or do you mean the next kernel that is in the next Ubuntu release like Trusty or Utopic. Does the bug exists in 3.2.0-67 but not 3.2.0-68? Kim, it would be really helpful if you can open a Lauchpad bug report against the kernel. That will let us review your logs, version info, etc. You can do this by running the following from a terminal window: 'ubuntu-bug linux'. If the bug is in fact fixed in 3.2.0-68, the easiest fix would be to just apply the latest updates. Thanks, Joe -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Any changes in kernels the last month (Iptables related)
Ain't it this regression? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1337281 -- ymmt2005 -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Any changes in kernels the last month (Iptables related)
Have you considered the possibility of the iptables hack? http://www.prolexic.com/knowledge-center-ddos-threat-advisory-iptables-iptablex-linux-bots-botnet-cybersecurity.html --jrp On Fri, Sep 5, 2014 at 6:58 AM, Doug Smythies wrote: > > On 2014.09.05 01:10 Kim Emax wrote: > > > I was wondering if there´s been any changed in the later kernels? > > > > I´m using a ubuntu server with tow nics as a router, firewall, DHCP etc. > > The last month out of nowhere and without any changes (other > than > regular > > updates from apt) my LAN has been fucked on upload (0.07mbit), while the > WAN > > has +40Mbit. I´ve rebooted switches and WLAN > router, changed the LAN > nic and > > has a laptop directly to the router, no luck. > > By changing in the iptables rules i´ve managed to tweak the LAN upload > to 1-2mbit, > > still works really bad on LAN though. Taking a test > at > hastighedstest.tdc.dk shows > > NO speed at first, then after a while it goes up a bit up to 3mbit, then > falls back > > and stays around > 1mbit. Wierd behaviour. > > Current Kernel: 3.2.0-67-generic, Ubuntu 12.04 > > Yes, the same thing happened to my Ubuntu 12.04 server which is my main > router to > my LAN with the same kernel. > > The lost time and frustration trying to figure it out was staggering. > I also suffered significant collateral damage. > > In my case the root issue was MTU and some new enforcement thereof, giving > a lot > ICMP packets saying something like: > "ICMP port unreachable, packet too long and don't fragment bit is set" > > O.K. so the real root issue is that some clients (windows clients and only > a > couple of NIC cards (it seems)) ignore the MTU and send larger packets. > > Anyway, and in my case, the issue is resolved in the next kernel, or by > going back to the previous kernel. > > Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC > 2014 x86_64 x86_64 x86_64 GNU/Linux > > ... Doug > > > > -- > ubuntu-server mailing list > ubuntu-server@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server > More info: https://wiki.ubuntu.com/ServerTeam -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
RE: Any changes in kernels the last month (Iptables related)
On 2014.09.05 01:10 Kim Emax wrote: > I was wondering if there´s been any changed in the later kernels? > > I´m using a ubuntu server with tow nics as a router, firewall, DHCP etc. > The last month out of nowhere and without any changes (other > than regular > updates from apt) my LAN has been fucked on upload (0.07mbit), while the WAN > has +40Mbit. I´ve rebooted switches and WLAN > router, changed the LAN nic and > has a laptop directly to the router, no luck. > By changing in the iptables rules i´ve managed to tweak the LAN upload to > 1-2mbit, > still works really bad on LAN though. Taking a test > at > hastighedstest.tdc.dk shows > NO speed at first, then after a while it goes up a bit up to 3mbit, then > falls back > and stays around > 1mbit. Wierd behaviour. > Current Kernel: 3.2.0-67-generic, Ubuntu 12.04 Yes, the same thing happened to my Ubuntu 12.04 server which is my main router to my LAN with the same kernel. The lost time and frustration trying to figure it out was staggering. I also suffered significant collateral damage. In my case the root issue was MTU and some new enforcement thereof, giving a lot ICMP packets saying something like: "ICMP port unreachable, packet too long and don't fragment bit is set" O.K. so the real root issue is that some clients (windows clients and only a couple of NIC cards (it seems)) ignore the MTU and send larger packets. Anyway, and in my case, the issue is resolved in the next kernel, or by going back to the previous kernel. Linux doug-64 3.2.0-68-generic #102-Ubuntu SMP Tue Aug 12 22:02:15 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ... Doug -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
