Hi, not sure if related but my Linux box (also in Hetzner) also started to have flaky connection lately.
-- Regards, Ville On Wed 7. Jul 2021 at 19.58, Peter J. Philipp <p...@delphinusdns.org> wrote: > Hi, > > My VPS at Hetzner has very weird behaviour: > > last week it started hanging up scp'ing of large backups, so I worked hard > to > get these encrypted if it was a hangup attack. Well surprise to me too the > hangups are back. I have tcpdump'ed the enc0 from both sides and the FIN > does originate from the Hetzner VPS. It's inside the secure channel but I > did not activate it knowingly. Even a ktrace does not show much, no > signal, > no close(), no shutdown(). The connection just drops on FIN and resulting > RST's. Here is a catpure of the FIN: > > seen from pod: > > 18:02:59.040443 (authentic,confidential): SPI 0xf2d38877: > 2a01:4f8:c010:71dd::1 > 2003:a:60f:ce01::108: 2a01:4f8:c010:71dd::1.1022 > > 2003:a:60f:ce01::108.40358: FP [tcp sum ok] 45961186:45962414(1228) ack > 15902 win 268 <nop,nop,timestamp 2363771869 964842829> [class 0x20] > [flowlabel 0x3fceb] (len 1260, hlim 64) [class 0x20] (len 1300, hlim 64) > > seen from arda: > > 18:02:59.064240 (authentic,confidential): SPI 0xf2d38877: > 2a01:4f8:c010:71dd::1 > 2003:a:60f:ce01::108: 2a01:4f8:c010:71dd::1.1022 > > 2003:a:60f:ce01::108.40358: FP [tcp sum ok] 45961186:45962414(1228) ack > 15902 win 268 <nop,nop,timestamp 2363771869 964842829> [class 0x20] > [flowlabel 0x3fceb] (len 1260, hlim 64) (len 1300, hlim 55) > > The download downloads a few MB and then it hangs up. > > Has anyone seen this sort of behaviour? I don't think I changed much in my > pf rules because up until last month backups downloaded flawlessly. Here > is > my dmesg (after my signature): > > Best Regards, > -peter > > > OpenBSD 6.9 (GENERIC.MP) #3: Mon Jun 7 08:21:26 MDT 2021 > r...@syspatch-69-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/ > GENERIC.MP > real mem = 2080227328 (1983MB) > avail mem = 2001866752 (1909MB) > random: good seed from bootblocks > mpath0 at root > scsibus0 at mpath0: 256 targets > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xf5b10 (9 entries) > bios0: vendor Hetzner version "20171111" date 11/11/2017 > bios0: Hetzner vServer > acpi0 at bios0: ACPI 3.0 > acpi0: sleep states S5 > acpi0: tables DSDT FACP APIC HPET MCFG > acpi0: wakeup devices > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: AMD EPYC Processor (with IBPB), 2495.71 MHz, 17-01-02 > cpu0: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,TOPEXT,FSGSBASE,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,SSBD,XSAVEOPT,XSAVEC,XGETBV1 > cpu0: 64KB 64b/line 4-way I-cache, 32KB 64b/line 8-way D-cache, 512KB > 64b/line 8-way L2 cache > cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu0: smt 0, core 0, package 0 > mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges > cpu0: apic clock running at 1000MHz > cpu1 at mainbus0: apid 1 (application processor) > cpu1: AMD EPYC Processor (with IBPB), 2495.40 MHz, 17-01-02 > cpu1: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,TOPEXT,FSGSBASE,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,SSBD,XSAVEOPT,XSAVEC,XGETBV1 > cpu1: 64KB 64b/line 4-way I-cache, 32KB 64b/line 8-way D-cache, 512KB > 64b/line 8-way L2 cache > cpu1: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu1: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu1: smt 0, core 0, package 1 > ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins > acpihpet0 at acpi0: 100000000 Hz > acpimcfg0 at acpi0 > acpimcfg0: addr 0xb0000000, bus 0-255 > acpiprt0 at acpi0: bus 0 (PCI0) > "ACPI0006" at acpi0 not configured > acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 > acpicmos0 at acpi0 > "APP0005" at acpi0 not configured > "PNP0A06" at acpi0 not configured > "PNP0A06" at acpi0 not configured > "QEMU0002" at acpi0 not configured > "ACPI0010" at acpi0 not configured > acpicpu0 at acpi0: C1(@1 halt!) > acpicpu1 at acpi0: C1(@1 halt!) > pvbus0 at mainbus0: KVM > pvclock0 at pvbus0 > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "Intel 82G33 Host" rev 0x00 > vga1 at pci0 dev 1 function 0 "Qumranet Virtio 1.x GPU" rev 0x01 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > wsdisplay0: screen 1-5 added (80x25, vt100 emulation) > ppb0 at pci0 dev 2 function 0 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci1 at ppb0 bus 1 > virtio0 at pci1 dev 0 function 0 "Qumranet Virtio 1.x Network" rev 0x01 > vio0 at virtio0: address 96:00:00:a5:ca:09 > virtio0: msix shared > ppb1 at pci0 dev 2 function 1 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci2 at ppb1 bus 2 > xhci0 at pci2 dev 0 function 0 vendor "Red Hat", unknown product 0x000d > rev 0x01: apic 0 int 22, xHCI 0.0 > usb0 at xhci0: USB revision 3.0 > uhub0 at usb0 configuration 1 interface 0 "Red Hat xHCI root hub" rev > 3.00/1.00 addr 1 > ppb2 at pci0 dev 2 function 2 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci3 at ppb2 bus 3 > virtio1 at pci3 dev 0 function 0 "Qumranet Virtio 1.x Console" rev 0x01 > virtio1: no matching child driver; not configured > ppb3 at pci0 dev 2 function 3 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci4 at ppb3 bus 4 > virtio2 at pci4 dev 0 function 0 vendor "Qumranet", unknown product 0x1045 > rev 0x01 > viomb0 at virtio2 > virtio2: apic 0 int 22 > ppb4 at pci0 dev 2 function 4 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci5 at ppb4 bus 5 > virtio3 at pci5 dev 0 function 0 "Qumranet Virtio 1.x RNG" rev 0x01 > viornd0 at virtio3 > virtio3: apic 0 int 22 > ppb5 at pci0 dev 2 function 5 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci6 at ppb5 bus 6 > virtio4 at pci6 dev 0 function 0 "Qumranet Virtio 1.x SCSI" rev 0x01 > vioscsi0 at virtio4: qsize 128 > scsibus1 at vioscsi0: 255 targets > sd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU HARDDISK, 2.5+> > sd0: 39064MB, 512 bytes/sector, 80003072 sectors, thin > virtio4: msix shared > ppb6 at pci0 dev 2 function 6 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci7 at ppb6 bus 7 > ppb7 at pci0 dev 2 function 7 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 22 > pci8 at ppb7 bus 8 > ppb8 at pci0 dev 3 function 0 vendor "Red Hat", unknown product 0x000c rev > 0x00: apic 0 int 23 > pci9 at ppb8 bus 9 > pcib0 at pci0 dev 31 function 0 "Intel 82801IB LPC" rev 0x02 > ahci0 at pci0 dev 31 function 2 "Intel 82801I AHCI" rev 0x02: msi, AHCI 1.0 > ahci0: port 0: 1.5Gb/s > scsibus2 at ahci0: 32 targets > cd0 at scsibus2 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.5+> removable > ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x02: apic 0 > int 16 > iic0 at ichiic0 > isa0 at pcib0 > isadma0 at isa0 > com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo > pckbc0 at isa0 port 0x60/5 irq 1 irq 12 > pckbd0 at pckbc0 (kbd slot) > wskbd0 at pckbd0: console keyboard, using wsdisplay0 > pms0 at pckbc0 (aux slot) > wsmouse0 at pms0 mux 0 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > uhidev0 at uhub0 port 5 configuration 1 interface 0 "QEMU QEMU USB Tablet" > rev 2.00/0.00 addr 2 > uhidev0: iclass 3/0 > ums0 at uhidev0: 3 buttons, Z dir > wsmouse1 at ums0 mux 0 > vscsi0 at root > scsibus3 at vscsi0: 256 targets > softraid0 at root > scsibus4 at softraid0: 256 targets > root on sd0a (7d473b0655b55a88.a) swap on sd0b dump on sd0b > >
