All Questions
248
questions
1
vote
1
answer
982
views
Linux - Multiple subnets with multiple gateways
I have multiple computers with 3 interfaces in multiple subnet.
For example : (all /24)
RED (linux)
eth0 192.22.184.113
eth1 192.23.184.113
eth2 192.24.184.113
BLUE (windows)
nic1 192.22.184.28
nic2 ...
- 13
0
votes
1
answer
492
views
add generic/dynamic route via "ip route add" on a linux machine
I am configuring a raspberry pi to work as a wireguard VPN router/firewall. The client will connect to the raspi via WLAN (hostapd), the raspi itself is connected to the ISPs router via LAN, and ...
- 101
0
votes
1
answer
91
views
Linux virtual machine not working with XAMPP, Vsftpd and NAT
I am trying to make a Linux Mint virtual machine with XAMPP and Vsftpd.
I am using Windows 11 Hyper-v Manager as virtualization software.
The problem is that when I try to watch my virtual machine's ...
- 3
0
votes
1
answer
331
views
Linux network by serial port
I need help to configure a serial port (/dev/ttyS1 or /dev/ttyUSB0 is the same) to communicate vs other hosts via IP (without modem). Some years ago it was possible ma I don't remember how.
Anyone ...
1
vote
2
answers
14k
views
Setting down and up a working interface with ip command causes it to stop working
I'm running Debian 11 and using the CLI, when bringing down and up a working interface with ip command (doing no changes at all on it's parameters) it stops working.
Steps that I follow:
Boot the ...
1
vote
1
answer
2k
views
"ip neigh flush" command removes entries with "extern_learn" and "permanent" set
If arp/neighbor entries are programmed with both "extern_learn" and "permanent", "ip neigh flush" command throws "Invalid argument" error, but the entries are ...
- 11
0
votes
1
answer
261
views
Creating an IP route for a network from one of its subnets
I am looking at a shell script that creates a namespace (NSNAME) and a veth pair (veth-in-root, veth0). After it brings up the veths and setting the ip addresses for them, there is this line:
ip -n &...
- 3
1
vote
0
answers
313
views
ufw logs BLOCKS from 2 sites while BLOCK logging is completely disabled for ALL sites
Logging is enabled. Only allow rules are logged. The very last line of my firewall rules is:
Anywhere DENY Anywhere
No logging is asked for, however two IPs repeatedly show ...
0
votes
1
answer
194
views
Wrong hostname resolution in Local network
context
I was trying in vain to map drives from my NAS to my PC via NFS when I figured out that my PC hostname was not resolved with the proper IP address from my NAS or any other devices connected ...
0
votes
0
answers
506
views
How can I hide my server IP from server users
I'd like to find a way to block websites like https://checkip.amazonaws.com or at least restrict them to the point they can no longer output my server's public IP address.
For example, if I do curl ...
0
votes
0
answers
648
views
Why can't I log in to PuTTY as user, but only root
I'm trying to Split and format Disk on VM in Debian. I also need set file permision.
My problem is that I can't log to the server through PuTTY as user, only as root. I entered same IP address as for ...
0
votes
0
answers
504
views
Limiting iot devices access to network through dual NIC linux machine - bridge vs router?
I have a Linux machine with two ethernet ports (one of which is connected to my ISP's router). I want to connect an iot device via the other ethernet port but limit (but not disable) its access to ...
1
vote
1
answer
826
views
why is Editing Hosts file for redirecting to IP of my choice giving a 404 error
i edited the hosts file in Linux at
etc/hosts
where i put two entries at the end as
127.0.1.1 brij-Latitude
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-...
- 13
0
votes
1
answer
1k
views
Linux's "ip route" not shows the route for dev lo
Ubuntu 20.
I do
ip -4 route add local 172.20.30.0/24 dev lo
It's OK.
Again - I got
RTNETLINK answers: File exists
This is OK.
But 'ip route' not shows this rule, neither 'netstat -rn', neither '...
- 3
0
votes
1
answer
5k
views
ssh into WSL2 works on only some IP addresses
On Win10, in WSL 2 running Ubuntu 20, I've installed sshd running on a port different from 22, namely 2222. To the firewall I've added an incoming rule for TCP port 2222.
From the windows command ...
- 2,521