requirements: make sure ssh public key auth works without password: pcA -> pcB, and pcB -> pcC
pcB = “jumphost”
# in general pcA <----> pcB <---- pcC (x11vnc)
# yes it's kind of a weird syntax X-D ssh -L 5900:pcC:5900 user@pcB # example # can be run as non-root user ssh -L 59000:192.168.4.112:5900 user@192.168.0.48 # then start, should connect to x11vnc running on 4.112 vncviewer 127.0.0.1:59000
how to automate this via remmina?
for some reason remmina does not run the command… or does not wait for the command to complete, so this does not work 🙁
# so run it manually
ssh -L 59000:192.168.4.112:5900 user@192.168.0.48
then connect
why does mate desktop network manager keep disabling dropping NIC network interface?
it’s annoying and possible… networkmanager of gnu linux mate desktop waits a certain time (spinning symbol)
dpkg -l|grep network-manager
ii network-manager 1.42.4-1 amd64 network management framework (daemon and userspace tools)
ii network-manager-gnome 1.30.0-2 amd64 network management framework (GNOME frontend)
for a reply from a dhcp server … if there is none, it assume this connection has no connectivity (no internet) and thus “worthless” and then the interface is downed X-D (dropping all connections to the manual additionally defined IP address)
when adding a fixed IP in addition to DHCP dynamic IP, this is also possible and imho the GUI is done pretty well, but to activate the settings without reboot and without terminating losing existing connections (like ssh)
systemctl reload NetworkManager; # try but does nothing systemctl restart NetworkManager; # works ip -c a; # check result nmcli general reload; # also try
what can be seen here are 2x USB to ETHERNET adapters and 1x “real” ETHERNET adapter, the USB ETHERNET adapters are based on, works pretty okay, but “real” ethernet is said to be more reliable
lsusb
Bus 003 Device 002: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
btw in order to temporarily test out a configuration, it’s possible to try something like this
while true; do ifconfig enx0011226827ff:3 192.168.4.1 up; ip -c a; ping -c3 192.168.4.238; sleep 3; clear; done
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