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Diffstat (limited to 'results/classifier/108/other/1414466')
| -rw-r--r-- | results/classifier/108/other/1414466 | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/results/classifier/108/other/1414466 b/results/classifier/108/other/1414466 new file mode 100644 index 000000000..3fabd7edb --- /dev/null +++ b/results/classifier/108/other/1414466 @@ -0,0 +1,201 @@ +permissions: 0.914 +other: 0.907 +semantic: 0.901 +debug: 0.884 +network: 0.861 +device: 0.850 +PID: 0.838 +graphic: 0.830 +boot: 0.819 +vnc: 0.811 +files: 0.803 +KVM: 0.803 +performance: 0.777 +socket: 0.728 + +-net user,hostfwd=... is not working + +QEMU version: git a46b3aaf6bb038d4f6f192a84df204f10929e75c + + /opt/qemu.git/bin/qemu-system-aarch64 --version +QEMU emulator version 2.2.50, Copyright (c) 2003-2008 Fabrice Bellard + +Hosts: +ovs - host machine (Ubuntu 14.04.1, x86_64) +debian8-arm64 - guest + +Guest start: +user@ovs:~$ /opt/qemu.git/bin/qemu-system-aarch64 -machine virt -cpu cortex-a57 -nographic -smp 1 -m 512 -kernel vmlinuz-run -initrd initrd-run.img -append "root=/dev/sda2 console=ttyAMA0" -global virtio-blk-device.scsi=off -device virtio-scsi-device,id=scsi -drive file=debian8-arm64.img,id=rootimg,cache=unsafe,if=none -device scsi-hd,drive=rootimg -netdev user,id=unet -device virtio-net-device,netdev=unet -net user,hostfwd=tcp:127.0.0.1:1122-:22 + +root@debian8-arm64:~# netstat -ntplu | grep ssh +tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 410/sshd +tcp6 0 0 :::22 :::* LISTEN 410/sshd + +(no firewall in guest vm) + +user@ovs:~$ netstat -ntplu | grep 1122 +tcp 0 0 127.0.0.1:1122 0.0.0.0:* LISTEN 18722/qemu-system-a + +user@ovs:~$ time ssh user@127.0.0.1 -p 1122 +ssh_exchange_identification: read: Connection reset by peer + +real 1m29.341s +user 0m0.005s +sys 0m0.000s + +Inside guest vm sshd works fine: +root@debian8-arm64:~# ssh user@127.0.0.1 -p 22 +user@127.0.0.1's password: +.... +user@debian8-arm64:~$ exit +logout +Connection to 127.0.0.1 closed. + +root@debian8-arm64:~# ssh user@10.0.2.15 -p 22 +user@10.0.2.15's password: +... +user@debian8-arm64:~$ exit +logout +Connection to 10.0.2.15 closed. + +Also happens on Ubuntu 16.04.1 64-bit with QEMU 1:2.5+dfsg-5ubuntu10.4. I have the following settings added to instance xml config: + +<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> + + <qemu:commandline> + <qemu:arg value='-net'/> + <qemu:arg value='user,hostfwd=tcp::2222-:22'/> + </qemu:commandline> + +It looks like forwarding does not happen at all. When I try to connect to guest instance, I get exactly the same results regardless of whether sshd is running in that instance or not. + +I think this is not a bug, but you are using the command line parameters in a wrong way. When you use "-net user,hostfwd=tcp:127.0.0.1:1122-:22" you are creating a *new*, second host network device which is not connected to the guest NIC device that you specified. Please try to avoid mixing "-net" and "-netdev" options. You should rather do something like this instead: + + -netdev user,id=unet,hostfwd=tcp:127.0.0.1:1122-:22 -device virtio-net-device,netdev=unet + + +Doesn't work even with proper hostfwd +Doesn't work even with `-redir` + +$ qemu-system-x86_64 -machine type=pc,accel=kvm -netdev user,id=user.0,hostfwd=tcp::2851-:22 -display sdl -cpu host -smp cpus=2 -device rtl8139,netdev=user.0 -cdrom /home/kit/git/packer-xenserver/packer_cache/57f4a00eef5b4d4157f20847e586e5ef2a503ee05c83c9296c08fd0c2f0c8e4f.iso -boot once=d -vnc 127.0.0.1:19 -name XenServer62 -m 2048M -drive file=output-qemu/XenServer62,if=scsi,cache=writeback,discard=ignore,format=qcow2 + + + +Redirect does happen, but no packets appear on guest interface: checked by iptables rule for `NEW` on `tcpport 22` inside guest. + +On host: + +$ sudo lsof -itcp | grep 2851 +packer 24233 kit 6u IPv4 1532725 0t0 TCP localhost:52822->localhost:2851 (ESTABLISHED) +qemu-syst 24286 kit 12u IPv4 1530169 0t0 TCP *:2851 (LISTEN) +qemu-syst 24286 kit 21u IPv4 1575945 0t0 TCP localhost:2851->localhost:52820 (CLOSE_WAIT) +qemu-syst 24286 kit 22u IPv4 1532726 0t0 TCP localhost:2851->localhost:52822 (ESTABLISHED) +qemu-syst 24286 kit 23u IPv4 1532645 0t0 TCP localhost:2851->localhost:52812 (CLOSE_WAIT) +qemu-syst 24286 kit 24u IPv4 1532646 0t0 TCP localhost:2851->localhost:52814 (CLOSE_WAIT) + + +Do we got any solution for this issue ? + +I am seeing similar issue for qemu-system-arm, I have tried with "-nic user,model=virtio-net-pci,hostfwd=tcp:127.0.0.1:31258-:22,hostfwd=tcp:127.0.0.1:47175-:443,hostname=xxx.com" and also with "-net nic -net user,hostfwd=tcp:127.0.0.1:45276-:22,hostfwd=tcp:127.0.0.1:52541-:443,hostname=hostname=xxx.com" + +Is this issue resolved.? + + +Finally I found what was the issue. in the /etc/ssh/sshd_config after commenting the below lines I am able to ssh to the vm. +# grep -i LISTEN /etc/ssh/sshd_config +#ListenAddress 127.0.0.1 +#ListenAddress :: +# +check your sshd config. + +So is this now working for everybody with the correct ssh config (maybe also check your firewall settings)? Could we close this ticket nowadays? Or is somebody still having trouble? + +[Expired for QEMU because there has been no activity for 60 days.] + +Hello, I'm also experiencing such a problem, using qemu-system-x86_64 (hence the retitling of this issue). More information and output is available at http://issues.guix.gnu.org/48739, but basically with the following QEMU command used to run a VM: + +/gnu/store/vbjfas8smw260r0qw1d5bbnh5hz08haz-qemu-5.2.0/bin/qemu-system-x86_64 -kernel /gnu/store/0fylx9z8lzyrbdivqa2jzn574gk8lcjv-linux-libre-5.12.7/bzImage -initrd /gnu/store/76ikiyg6arhd40pmq6yyi0vgdszfl08w-system/initrd -append "--root=/dev/vda1 --system=/gnu/store/76ikiyg6arhd40pmq6yyi0vgdszfl08w-system --load=/gnu/store/76ikiyg6arhd40pmq6yyi0vgdszfl08w-system/boot modprobe.blacklist=usbmouse,usbkbd quiet" -enable-kvm -no-reboot -object rng-random,filename=/dev/urandom,id=guixsd-vm-rng -device virtio-rng-pci,rng=guixsd-vm-rng -virtfs local,path="/gnu/store",security_model=none,mount_tag="TAGjoptajej2oynju6yvboauz7pl6uj" -vga std -drive file=/gnu/store/gj50g71n2b7xa2s9lgcfijprvr4vj66y-qemu-image,if=virtio,cache=writeback,werror=report,readonly -m 512 -nic user,hostfwd=tcp::3333-:22 + +Trying to connect to the VM which has its sshd_config set to: +Port 22 +PermitRootLogin yes +PermitEmptyPasswords yes +PasswordAuthentication yes +PubkeyAuthentication yes +X11Forwarding no +AllowAgentForwarding yes +AllowTcpForwarding yes +GatewayPorts no +PidFile /var/run/sshd.pi +ChallengeResponseAuthentication no +UsePAM yes +PrintLastLog yes +LogLevel DEBUG +AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2 /etc/ssh/authorized_keys.d/%u +Subsytsem sftp internal-sftp + +The SSH client would hang with its last debug output being: + +debug1: Local version string SSH-2.0-OpenSSH_8.6 + +Inside the guest, /var/log/secure doesn't show any activity so itd oesn't seem to be reached. + +Ideas? + + +Here's what `tcpdump -i lo` reports during attempting the SSH access: + +17:09:30.573545 IP localhost.55526 > localhost.3333: Flags [S], seq 1198531632, win 65495, options [mss 65495,sackOK,TS val 1662149852 ecr 0,nop,wscale 7], length 0 +17:09:30.573569 IP localhost.3333 > localhost.55526: Flags [S.], seq 476868813, ack 1198531633, win 65483, options [mss 65495,sackOK,TS val 1662149852 ecr 1662149852,nop,wscale 7], length 0 +17:09:30.573588 IP localhost.55526 > localhost.3333: Flags [.], ack 1, win 512, options [nop,nop,TS val 1662149852 ecr 1662149852], length 0 +17:09:30.574162 IP localhost.55526 > localhost.3333: Flags [P.], seq 1:22, ack 1, win 512, options [nop,nop,TS val 1662149853 ecr 1662149852], length 21 +17:09:30.574176 IP localhost.3333 > localhost.55526: Flags [.], ack 22, win 512, options [nop,nop,TS val 1662149853 ecr 1662149853], length 0 +17:09:35.127136 IP localhost.3333 > localhost.55518: Flags [R.], seq 1, ack 1, win 512, options [nop,nop,TS val 1662154406 ecr 1662125014], length 0 + + +That's rather embarrassing, but the problem with my VM was that it was lacking networking support. I turned this (too) minimal example of a Guix System: + +;;; file: os.scm +(use-modules (gnu services ssh) + (gnu system) + (gnu tests)) + +(simple-operating-system + (service openssh-service-type + (openssh-configuration + (permit-root-login #t) + (allow-empty-passwords? #t) + (log-level 'debug)))) + +Into: +;;; file: os.scm +(use-modules (gnu services networking) + (gnu services ssh) + (gnu system) + (gnu tests)) + +(simple-operating-system + (service dhcp-client-service-type) + (service openssh-service-type + (openssh-configuration + (permit-root-login #t) + (allow-empty-passwords? #t) + (log-level 'debug)))) + +After which using the '-nic user,hostfwd=tcp::3333-:22' allowed me to SSH to localhost port 3333 successfully. Closing! + +I have had the same problem, I tried logging into a buildroot image that was started using the following command line: + + qemu-system-i386 -drive file=output/images/disk.img,format=raw,index=0,media=disk -vga std -nic user,ipv6=off,model=e1000,mac=10:10:10:10:10:10,hostfwd=tcp::4000-:22 + +The ssh connection was picked up, but nothing happened. The problem was that the network device was not brought up! I added the following to /etc/network/interfaces + + auto eth0 + iface eth0 inet dhcp + +And voila, I can use + + ssh username@localhost -p 4000 + +to log into the machine using ssh. + |