2

All settings in the modem / router are correct, and you can ssh from internally to your host meaning that your ssh / dropbear is working. The issue is not your internal network or modem. Unfortunately, your ISP has a hardened firewall not allowing forwarding traffic into your network making it so you cannot access your host externally.


2

Please make sure that you still have samba-client package installed: sudo apt install samba-client


1

Connect via Ethernet and install wpasupplicant and net-tools. sudo apt update sudo apt install wpasupplicant net-tools Use this .yaml file... use the EXACT same spacing, indentation, and no tabs... network: version: 2 renderer: networkd ethernets: enp1s0: dhcp4: true optional: true wifis: wlo1: dhcp4: true access-...


1

You can use something more powerful like kill -9. First find out PID number like so: pgrep openconnect 12345 After that, kill the process with: sudo kill -9 12345.


1

I suggest that it is Network Manager that is interfering. I also don't think that sudo ifconfig device_name on is correct. Please try: sudo service NetworkManager stop sudo ifconfig wlp0s20f3 down sudo iwconfig wlp0s20f3 mode monitor sudo ifconfig wlp0s20f3 up Start wireshark and see if there is any improvement.


1

It's because Canonical has disabled SMB1 for security reasons. SMB2/SMB3 still works. smbtree command also no longer works. Either... Use //server/pathname or //IP/pathname when using the Connect to Server, or in your /etc/fstab or Edit /etc/samba/smb.conf, and add this to the Network section, and restart smbd and nmbd... # allow SMB1 client min protocol = ...


1

Modify the line in your /etc/dhcpcd.conf file of static ip_address=10.0.0.14/24 to static ip_address=10.0.0.10/24 so that it no longer tries to set the 10.0.0.14 IP address.


1

This message generally indicates that you try to remove a route from a routing table, but such a route does not exist in the table. When bringing the interface down, ifdown is trying to remove any routes that are associated with a given interface. This message appears when ifdown "thinks" it has to remove a route (because it appears somewhere in ...


1

I had the same problem with the network being offline after an update on Ubuntu 20.x. I found this bug report: https://bugs.launchpad.net/netplan/+bug/1922898 Here is how I was able to fix my Ubuntu 20.x servers: Download latest netplan.io_0.102: cd /tmp wget http://security.ubuntu.com/ubuntu/pool/main/n/netplan.io/netplan.io_0.102-0ubuntu1~20.04.1_amd64....


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