9,218 questions
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XDP Program on veth Host-side Blocking Inter-Namespace Communication
I have two namespaces, ns1 and ns2. I created two veth pairs and connected the namespaces to the host via these veth pairs. Now, I want to enable these two namespaces to ping each other using a very ...
0
votes
1
answer
147
views
VS Code Terminal cannot resolve local ip domain
I am using VS Code Insiders for some reasons (a bug in copilot). VS Code insiders Terminal cannot resolve local ip domain.
PING 10.0.0.52 (10.0.0.52): 56 data bytes
ping: sendto: No route to host
ping:...
- 21.5k
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68
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Reasons Printing Via a Socket Connection Would Fail
I am writing a program that involves printing Raw Printer Command Language (PCL) files wrapped in Print Job Language (PJL) commands. I print it via a port 9100 socket connection to the printer using ...
- 11
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45
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KVM QEMU : full network access for a VM
I need a VM to have the full access to the network, with no filtering at all (I will use it as a virtual switch with advanced switching features).
What I've done :
a VM (let's call it "switch&...
- 75
1
vote
2
answers
206
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How can I send UDP data over the loopback interface so that Wireshark can dissect it without ICMP errors?
Initial Problem
I had what I thought was a simple task in Golang: format some data according to one of Wireshark's dissectors (MAC-LTE) and then send it over UDP so that it could be viewed in ...
- 251
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2
answers
162
views
Using a custom DNS resolver not resolving for Type.ANY
When I try to use a custom DNS server (either a single server using SimpleResolver or multiple servers using ExtendedResolver) and want to do a lookup for ANY records relating to a domain, I am ...
-1
votes
1
answer
410
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TypeError: Invalid URL ( React native )
before this error happen , my React native app can not run on mobile when i scan qr code on my device and after watching a youtube video for fixing the issue it got worse . my entire project can not ...
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172
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Append an IP to the network allow list
Is there any way I can append new IPs to network allow list of Snowflake? I can use the ALTER command, but each time when new entries need to be appended, I have to run ALTER with the old values and ...
0
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1
answer
272
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How to set up a static IP adress for Raspberry pi 5 using Yocto?
I built a raspberry pi 5 image for my raspberry pi 5, using only the base image found in meta-raspberrypi/conf/machine/raspberrypi5.conf, which I modified a bit to include some modules, one of which ...
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1
answer
103
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Setting up traffic routing for Linux
I can't solve the problem with traffic routing on Linux on this system:
root@fl-imx6ull:~# uname -a
Linux fl-imx6ull 4.1.15 #1 SMP PREEMPT Tue Apr 8 08:26:30 MSK 2025 armv7l armv7l armv7l GNU/Linux
...
-1
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1
answer
87
views
How to improve ip-api locator [closed]
I am trying to make a python IP locator, which currently relies on this function:
def get_location(ip_address="", show_duplicates=True):
url = f"http://ip-api.com/json/{ip_address}&...
- 281
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votes
1
answer
175
views
Using SQL Server, looking to get subnet from IP address and subnet mask stored in the database
We have a use of subnets for doing geo location of computer assets. In the most up to date data we do not have subnets IE 10.81.66.0, we just have the IP address and subnet mask such as 255.255.255.0
...
- 13
1
vote
0
answers
36
views
should we consider application layer message size
When application layer work upon TCP, do we need to consider the application message size if we want to get better performence? As PMTU is most likely unavaliable, if we choose a size as 3000 which is ...
- 11
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0
answers
111
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How to Resolve Docker Domain Access Errors Without Manually Updating /etc/hosts?
Every time my Docker accesses a domain, even for performing Docker Login, it throws an error:
Error response from daemon: Get "https://registry-1.docker.io/v2/": dial tcp: lookup registry-1....
- 11
-1
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1
answer
107
views
Java does not want to return IPV6, only IPV4 when try to resolve an DNS
I made a class that resolve a domain to a ip, now i need this app to show me both ipv4 and ipv6 but it only shows me ipv4. The problems is i think in this line of the code :
InetAddress[] addresses = ...
