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Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin I have created a Virtual Machine of CentOS in virt-manager and cannot ssh to it. I get no route to host, even though: * The VM is in bridged mode * SSHD is started * The firewall on the Virtual Machine allows traffic on port 22 Does virt-manager have another firewall for virtual machines, is there a bug, or am I doing something wrong? Unable to complete install: 'Unable to read from monitor: Connection reset 8 Years Ago by damijay …machine; OS = kubuntu 14.04LTS using virtual machine manager on an external hard disk. My PC's …(most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper callback…(asyncjob, *args, **kwargs)` File "/usr/share/virt-manager/virtManager/create.py", line 1909, in do_install guest.… Re: Unable to complete install: 'Unable to read from monitor: Connection reset 8 Years Ago by damijay Thanks @ rubberman. Virtual box was the only package i installed. I resolved this last week; the .iso image was corrupted and i had to try another which installed seamlessly. Unfortunately, i had issues (disappearing mouse)with VMM(virt-manager) which comes by default on precise pangolin so i switched completely to Oracle Virtual box. Re: You Want Linux to Run What? 13 Years Ago by DimaYasny With today's computers, there is no problem to run windows in a virtual machine on top of linux. all the distributions include libvirt+virt-manager nowadays, and there's no restriction to install virtualbox or something similar Re: Is "full virtualization solution" better than everyday application solution 9 Years Ago by DimaYasny …. KVM is pretty easy to use on the desktop with virt-manager, and it has a datacenter and cloud solution available - oVirt… Re: Advanced Network Related Question Regarding Network Namespaces 3 Years Ago by Tcll … not have) I wonder if I can do away with virt-manager to where I can get rid of the vbridge interfaces… Re: Anything I can safely remove from startup? 16 Years Ago by demonica61 … the computer too frequently and unexpectedly sucking up too much virt. memory so I disabled it from the start up menu… Re: Too much memory being consumed! Also is it time to fsck my HD? 15 Years Ago by Fest3er … al[/list] Possibly, something in the display system (X, window manager, app, etc.) went haywire and is requesting a lot of… more than 1GB of RAM. [code] PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 18734 bushidoh 20… Re: Windows Messenger not working 14 Years Ago by nil_datta75 …: 53% load. Phys:608264/1300528K free, Page:1110336/1763892K free, Virt:2070744/2097024K free 21.08.2009 23:19:14 system…:\PROGRA~1\AVG\AVG8\avgwdsvc.exe O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver… Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX Does the VM have an IP on the Host OS's physical LAN subnet? Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin It did before, now I can't get it to start, I messed up networking settings trying to diagnose this :( Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX Without an IP on the bridged interface, how would this work? It won't. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin Before it broke it had an IP on the bridged network, but still coudln't connect Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX Well, before you can troubleshoot the connectivity, you need to fix the networking and get an IP assigned to that virtual host. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin I have the machine booted again with an IP in the same range as the host. Still cannot connect. As an additional test I started HTTPD and cannot connect to it from by browser on the host machine, workd perfectly on the VM to localhost. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX Alright then. Lets start with the host OS. Is there a firewall enabled on either host? If yes, disable for a test. Can host OS ping the guest OS using that bridged IP? Can we see ipconfig /all or ifconfig for each host... Can we also get a route list for the host os. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin With both firewalls off the two machines cannot ping each other :( # Host # eth0 Link encap:Ethernet HWaddr 84:2B:2B:86:CB:2F inet addr:192.168.1.119 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::862b:2bff:fe86:cb2f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1… Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX Can each machine ping itself at their own addresses (192.168.1.119 and .110)? Can each machine ping the gateway at 192.168.1.1? Can you show the arp table from each host after the ping attempt? On the guest, run a tcpdump -v and then ping it from the host. The tcpdump should show the inbound packets at least. I'd like to see that as … Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin Yes they can ping themselves and the GW. If I even enter the IP of the gateway into a browser, the web interface comes up. I PMed you the tcpdump. ## Before Ping (Host) Address HWtype HWaddress Flags Mask Iface 192.168.1.1 ether 00:18:39:c5:83:c1 C eth0… Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX >>It seems the host and guest have the same Mac Address Ya that's going to be a problem... Normal flow for this is to ARP for the MAC belonging to an IP address via broadcast. Owner of the IP will respond back and the local ARP table will be updated. If 2 IPs share a mac, I'm not sure how the traffic will react to that. … Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin I think the Mac Issue was because of "Passthrough" mode (I was trying different options to see if I could get better results). The host IP used to be 192.168.1.136 (not 192.168.1.119) before I started fiddling around with the bridged networking here. I don't know if somehow the Mac Addresses changed causing the DHCP to assign a different … Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by CimmerianX MAC addresses do not change on on physical hardware. Nor should they change on the fly with DHCP. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by rubberman Even with a valid local network address, you need to edit the /etc/ssh/sshd_config file on the server end and set the needed options for ssh connectivity from external machines. Also, make sure that the sshd service is started: sudo service sshd status Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JySysAdmin Indded the number hard coded to the hardware can't change, but the address the card is using could be different, causing DHCP to think it's a different adatper and therefore assign a different IP. And the SSH server is working fine, I can SSH to localhost and from another physical box, just not from the host. Re: Cannot SSH to virt-manager VM w/ bridged networking 11 Years Ago by JamiePetreno Before you can repair the connection, you need to fix the social media and get an IP allocated to that exclusive variety . . . . . . . Re: Unable to complete install: 'Unable to read from monitor: Connection reset 8 Years Ago by rubberman I have to assume you are running VMware and VirtualBox? In either case, I haven't seen this error. It may be that your OS image that your are trying to install is corrupted. Try another. Re: Unable to complete install: 'Unable to read from monitor: Connection reset 8 Years Ago by rubberman I've had very good luck with VirtualBox - been using it constantly for almost 10 years now. Very solid. At work we use VMware and have a tonne of ESXi servers and run VMware workstation on our laptops as well. Seems very solid also.