Connection error - server offline?

[TechLineX]

After i set up my own certificate i have a lot of problems.

After that, i decided to roll back to an proxmox cert:
https://pve.proxmox.com/wiki/HTTPSCertificateConfiguration

deleted the stuff and run this command:
pvecm updatecerts -f

But when i now connect to the gui, it comes the error Connection error - server offline? and the gui is empty, so i have no server there.

I hope you can help me!

I dont know, if cman is importand for 4.x, but if i try to restart cman, i get this error:
service cman restart
Failed to restart cman.service: Unit cman.service failed to load: No such file or directory.

no cluster, only a single node.

pveversion -v
proxmox-ve: 4.2-56 (running kernel: 4.4.13-1-pve)
pve-manager: 4.2-15 (running version: 4.2-15/6669ad2c)
pve-kernel-4.4.13-1-pve: 4.4.13-56
pve-kernel-4.2.8-1-pve: 4.2.8-41
lvm2: 2.02.116-pve2
corosync-pve: 2.3.5-2
libqb0: 1.0-1
pve-cluster: 4.0-42
qemu-server: 4.0-83
pve-firmware: 1.1-8
libpve-common-perl: 4.0-70
libpve-access-control: 4.0-16
libpve-storage-perl: 4.0-55
pve-libspice-server1: 0.12.5-2
vncterm: 1.2-1
pve-qemu-kvm: 2.5-19
pve-container: 1.0-70
pve-firewall: 2.0-29
pve-ha-manager: 1.0-32
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u2
lxc-pve: 1.1.5-7
lxcfs: 2.0.0-pve2
cgmanager: 0.39-pve1
criu: 1.6.0-1
zfsutils: 0.6.5.7-pve10~bpo80

 

[wolfgang]

Hi,

try
pvecm updatecerts -f

and then restart the webserver on all nodes

systemctl restart pveproxy.service

 

[TechLineX]

Still the same error:
http://i.epvpimg.com/zWo4d.png

I rolled back with my old cert. When i start an VM, i get this:

Running as unit 100.scope.
kvm: -vnc unix:/var/run/qemu-server/100.vnc,x509,password: Failed to start VNC server: Our own certificate /etc/pve/local/pve-ssl.pem failed validation against /etc/pve/pve-root-ca.pem: The certificate hasn't got a known issuer
TASK ERROR: start failed: command '/usr/bin/systemd-run --scope --slice qemu --unit 100 -p 'KillMode=none' -p 'CPUShares=1000' /usr/bin/kvm -id 100 -chardev 'socket,id=qmp,path=/var/run/qemu-server/100.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/100.pid -daemonize -smbios 'type=1,uuid=158fd294-d4fc-4de7-ac30-465cd2e7e316' -name vm100 -smp '1,sockets=1,cores=1,maxcpus=1' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000' -vga std -vnc unix:/var/run/qemu-server/100.vnc,x509,password -no-hpet -cpu 'kvm64,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_relaxed,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce' -m 512 -k de -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:3db8b5388a5' -drive 'file=/dev/zvol/rpool/data/vm-100-disk-1,if=none,id=drive-ide0,format=raw,cache=none,aio=native,detect-zeroes=on' -device 'ide-hd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=100' -drive 'file=/var/lib/vz/template/iso/debian-jessie-preseed.iso,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200' -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown' -device 'e1000,mac=00:91:72:A9:8A:8E,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300' -rtc 'driftfix=slew,base=localtime' -global 'kvm-pit.lost_tick_policy=discard'' failed: exit code 1

 

[aivdev]

I've the same problem.

I've tried generate new certificate for proxmox server with letsencrypt, then I remove autogenerated certificate and I get "server offline" when I access to my proxmox and I can't see 'pve' node. ¿What I must to do?