I have a Raspberry Pi 3B+ which I have to admit has only recently shown this problem.
I booted up the Pi normally and tried to SSH into it since I have a static IP set for it. This was unsuccesful, so I connected my monitor and keyboard, and run ifconfig to see the current IP address. After checking to see if my laptop is connected to the same WiFi network as the Pi, I tried SSH-ing into the Pi with no success: sh: connect to host xxx.xxx.xxx.xxx port 22: Connection timed out or Reply from xxx.xxx.xxx.xxx: Destination host unreachable..
My Pi has the SSH interface option enabled and can use it's internet connectivity as I could PING www.google.com with success and can also run sudo apt update && sudo apt upgrade.
I tried rebooting thinking this is a power issue, using a different socket / charger, restarting dhcpcd.service. No success, so I got curious.
I have connected a WiFi dongle onto the Pi, enabling the wlan1 interface which immediately discovered and connected to the WiFi network (it is an open network) and was assigned an IP. SSH=ing into this IP was successful. How can I fix my wlan0 interface? I do not want to rely on an external dongle. Connecting an ethernet cable and SSH-ing using the eth0 interface works as well.
I ended up reflashing my RaspberryPi with a fresh install
Related
I have the following setup: A virtual machine, started with qemu is running on an ubuntu laptop. I also have a raspberry pi 4 booted from a sd card connected over ethernet with the laptop. My goal is to establish a network connection between the VM and the Raspberry. So far i worked with a tap (tap0) and a bridge (br0) to connect the VM with my network adapter (eth0).
I was expecting that The VM and the raspberry should now be able to ping each other but i can only do the following:
Ping from VM to bridge
Ping from Raspberry to bridge
Ping from bridge to Raspberry or VM
Where could the problem be?
I found the problem. It was the firewall! Make sure to enable ip forwarding here.
sudo iptables -P FORWARD ACCEPT
if you are in a closed network as in my case this shouldn't be a problem.
I have a Oracle SPARC server with Solaris SPARC 10 OS installed
I have a domestic router/modem box from my ISP in my house. I have a wifi extender in my room which has a RJ45 female socket for ethernet connection. The Wifi extender is configured properly to act as a bridge for machines to connect with my router/modem.
I have setup my NIC card in Solaris 10 with the following commands
dladm show-link
ifconfig e1000g0 plumb up
ifconfig 192.168.0.22 netmask 255.255.255.0 broadcast + up
I have put the IP address of 192.168.0.22 into the /etc/defaultrouter file and again the same IP address in /etc/hostname.e1000g0 file
Next I typed in 'init 6' to reboot Solaris 10.
Once Solaris 10 is up again I can successfully ping the address of 192.168.0.22. But my router obviously needs a password as it is a WPA protected domestic router. This means programs like WGET which needs an URL address to download data doesnt work ATM. Does anyone know what to do to complete the tasks of making my server internet ready. Thanks in advance for any help given to me
Regards
You do not put your Solaris IP address in /etc/defaultrouter
You put the address of the router, which must be in the local network of your Solaris box. It may end with .1 or .250--you need to find out (try ping). For example, in your case it may be 192.168.0.1. After that you also need to configure /etc/resolv.conf with your DNS servers.
Folks,
I have a Ubuntu machine connected to the Internet through wireless (wlan0), and I am sharing this connection to my Ethernet port (eth1). Then, I have this Ethernet port connected to a switch, and two windows machine connected to the same switch. So the two windows machines have a static IP from the LAN generated from the route generated from wlan0 to eth1, so that I can communicate with all 3 computers at the same time (this works since I can ssh and remote access all 3 computers).
My problem is that I when I run my LCM program (with TTL = 1) on my windows PC, I cannot receive the messages on my Ubuntu machine (meaning that the message should pass through the Ethernet). How can I make sure the UDP messages can be routed back into my Ubuntu machine from the windows machines while the wireless network is running?
This was my solution to the problem (right there on the LCM website):
sudo ifconfig eth1 multicast
sudo route add -net 224.0.0.0 netmask 240.0.0.0 dev eth1
Now all my UDP packets are routed only through eth1. And my shared network (from wlan0) is still intact after this. So all computers have internet at the same time. So great!
I have Windows 10 as host with a Manjaro installation as Guest on Virtualbox.
I have set a Debian server on another house with ssh installed. I have setup a dyndns on Debian's network so I can access it remotely.
For example..
From address 12.34.56.78 I ssh to foo.dyndns.org:1234. This port redirects me to 192.168.1.5:22 always as this is my Debian machine and the connection is established. I am able to do this from Windows 10 as well as my android and any other device in 12.34.56.78 or by 3G.
But..
When I try to do this
$ ssh foo.dyndns.org:1234
from the Manjaro Guest in Virtualbox I get the following error:
ssh: Could not resolve hostname foo.dyndns.org:1234: Name or service not known
So I did ifconfig and I saw my inet address was 10.0.2.15. I changed virtualbox's network adapter from NAT to Bridged so I can get a lan ip and I got the host's ip, 192.168.2.4. So I gave it another try and still didn't work.
Also, if i try to connect from vm to server while I'm in the same network
$ ssh user#192.168.2.5:22
it works. In this case virtualbox's network adapter was NAT.
This command works if I try from my android (connectbot).
I can connect the same way from PuTTY from Windows.
So my questions are:
Can it be done?
If so, how? (and why?)
Can a VBox Guest get lan ip that's not the same as the host's?
Is there any more information I should provide?
I have searched for a couple of days in here and on google and all I found where solutions on how someone can ssh INTO a vm. No one (from what I saw) asked the opposite.
Checking manual page for ssh reveals the format of command-line options:
ssh [...] [-p port] [...] [user#]hostnamessh
This simply describes, that you need to change
ssh foo.dyndns.org:1234
to
ssh -p 1234 foo.dyndns.org
if the domain resolves correctly to the ip address.
My last update on Fedora 22 Workstation simply broke my OS, it won't log in, crashing before it.
I want to download and install some new files to fix it. I'm plugging ethernet cable, but I can't connect to Internet.
In Gnome it's like wifi, just clicking on Enable or something like that
How can I enable ethernet connection in CLI mode (ctrl+alt+f2)?
The up flag with interface name (eth0) enables a network interface. For example, the following command will activates the eth0 network interface.
sudo ip link set eth0 up