All Questions
52
questions
2
votes
2
answers
426
views
What are the uses for all computer/host/dhcp names?
This question is meant to be specific to a home network.
Windows, Linux, and MacOS computers all have a host name. In addition, MacOS computers have a computer name and a local host name. And when a ...
- 23
0
votes
2
answers
278
views
SSH login@ip@gateway through config+VSCode
I can successfully connect from my macbook+VPN to my corporative cloud server through ssh with this command (passwordless, using my id_ed25519 key):
ssh login@ip@gateway -A
But I need to connect to ...
- 101
1
vote
0
answers
47
views
How do I figure out why one host is so slow writing to another host on LAN?
I have 3 devices on my LAN, all using wired connections:
MacBook Air
Lenovo ThinkCentre (running Ubuntu Server 22.04)
Raspberry Pi
I am using the ThinkCentre as a home server, and want to write ...
- 686
0
votes
1
answer
150
views
Unable to ping VirtualBox host only interface
On my macOS Monterrey machine I am running Ubuntu as guest on VirtualBox 6.1.30 r148432. In VirtualBox I've enabled the host-only adapter, and I see interface vboxnet0 on macOS:
ifconfig vboxnet0
...
- 115
1
vote
2
answers
605
views
Could someone execute commands on my netcat server/listener?
TLDR
Someone has connected to my netcat server and tried to execute a command. Is it possible they have done any harm to me/my computer/my network?
Detailed story
I've been learning about networking ...
- 13
0
votes
1
answer
2k
views
Create APFS/HFS+ partition on Linux and share it via network
I want to store all my files and documents on a local server at my home instead locally on a single PC.
Now I'm wondering if it's possible to create a APFS or HFS+ partition on a Linux system (like ...
- 105
1
vote
0
answers
47
views
Dropbox.com works in VM host but not guest, all other sites work in guest
Dropbox.com works in VM host but not guest, all other sites work in guest.
Host: MacOS 11
VM: VMWare Fusion 12
Guest: Arch Linux, VM NAT networking
No iptables rules in VM.
ca-certificates (20210603-1)...
- 33
0
votes
1
answer
62
views
Cannot access website due to incorrect DNS configurations; new devices can access with updated correct DNS, but not old ones
Like said in the long title, I can't access my site hosted on AWS with AWS Route 53 Hosted Zone. When I initially configured my DNS, there may have been something wrong with the A records which ...
- 101
0
votes
1
answer
324
views
Difficulty setting up internet sharing on Beaglebone on macOS Big Sur
I am having trouble setting up an internet to be shared on Beaglebone (BB) through the host (Mac running Big Sur OS).
When I do ifconfig on BB, I see two USB interfaces showing up (usb0, usb1) with a ...
- 103
1
vote
1
answer
589
views
SSH Permission denied when subnet is /31
I am trying to make a point to point ipv4 link with a device running Ubuntu 18.04 . if I set the device to 192.168.1.48/31 and in then OSX I set my ethernet dongle to 192.168.1.49/31, I am able to ...
0
votes
0
answers
1k
views
Having trouble getting ARP requests through a QEMU VM on Mac OSX
Using Mac OS 10.14.5 Mojave and QEMU version 4.0.0
I'm trying to get an Ubuntu Server 19.04 guest running with network communication through a bridge on my Mac host. At the moment I'm struggling with ...
0
votes
0
answers
412
views
command-line way to set up routing on mac and linux
My setup:
PC: debian 9, kernel 4.9.x
eth1, 10 Gbit ethernet (PC <-> MAC)
MAC: mojave 10.14.1
en0, 1 Gbit ethernet (MAC <-> internet)
en6, 10 Gbit via thunderbolt 3 (MAC <-> PC)
My goals ...
- 53
1
vote
1
answer
400
views
Is it possible to make direct ethernet connection between machines with iOS and Fedora? How?
I am trying to connect Macbook and notebook with Fedora using ethernet cable in order to make HTTP request, so far with no success. I am also unable to find any sufficient tutorial (for beginners at ...
- 113
1
vote
2
answers
3k
views
VirtualBox: MacOS host cannot connect to guest, but guest can connect to host
My setup:
MacOS host (High Sierra 10.13.3)
Linux guest (Ubuntu 16.04)
Virtual Box 5.2.12
NAT networking
I need to talk from host to guest and from guest to internet.
The guest gets an IP address of ...
- 482
1
vote
0
answers
72
views
Sharing a VPN connection
There are similar question to this but none seem to give a direct answer to my question.
Goal: Connect to a Windows machine behind a L2TP/IPSec VPN using RDP from a Linux machine that doesn't support ...
- 143
0
votes
1
answer
2k
views
SSH tunnel between 2 machines using macOS
I'd like to create an SSH connection from localhost that would go through host1 and connect to host2.
My local machine runs macOS. host1 and host2 are AWS machines that require PEM files for ...
- 125
1
vote
0
answers
344
views
docker0 vs eth0 when gaining remote access to ubuntu desktop?
I’m trying to get remote access with screen sharing to my Ubuntu PC from my Mac. I need to be able to connect to it over the internet from another network. When I go finder>go>connect to server ...
- 211
5
votes
1
answer
3k
views
VNC from MacOS screen sharing to linux Ubuntu
I’m trying to screen share from a MacBook to a VM running Ubuntu on Parallels on a MacBook Pro on the same network. I can ssh to it fine, but using the same account and IP address in MacOS screen ...
- 51
1
vote
1
answer
387
views
Why is name resolution slow on my Mac
I have a Linux web server running in VirtualBox and after upgrading to Sierra I found that my sites on the web server are extremely slow to load. It takes minutes. I thought it had to do with ...
6
votes
1
answer
9k
views
Route only certain IP range with VPN connection
We are using FortiClient to connect to one of our client's VPN. Unfortunately, FortiClient is routing all the traffic over VPN as default.
We have found a way around it, for Linux. After connecting ...
- 211
0
votes
1
answer
823
views
How to programmatically restart network account server on Mac?
In Mac -> System Preference -> Users & Groups -> Login Options:
At the bottom there is a "Network Account Server" option, I have a few servers running. But occasionally it appears to be red ...
- 195
0
votes
1
answer
108
views
Problems connecting to my Mac via SSH
I have Mac with remote access enabled. I can easily connect to it via SSH within local network. I have configured 22 port forwarding on my router. But I can't connect to my Mac via SSH by using router'...
- 1
9
votes
5
answers
10k
views
How to fix "Did not find mosh server startup message." when connecting from OS X to Linux router?
I did install Mosh on (1) a Mac OS X 10.9.5 machine, (2) a Debian 8 VM, and (3) as Entware-ng package on a router that runs an embedded Linux. Mosh connection from Mac (1) to (2) Debian is ok. Mosh ...
- 529
0
votes
1
answer
8k
views
SSH Client Closes Connection
I'm attempting to establish 2-way SSH communication between a MacBook (192.168.1.3) running OS X 10.9.5 and a desktop computer (192.168.1.2) running Korora 23 (basically Fedora 23 with additional ...
- 11
-1
votes
1
answer
927
views
How do I ensure a VPN is always used?
I'm running a VPN and wonder what happens if the VPN connection breaks.
When I run ifconfig i see my default ethernet adapter at en0 and the VPN at utun0. All traffic is running through the utun0 ...
- 79
0
votes
1
answer
207
views
network old mac to use as rsync backup
The goal:
Be able to run my rsync backup on my local machine "X" (Ubuntu 13.1) to a remote machine, a currently un-networked mac "Y" (OSX 10.2.8).
What I've done so far:
Flew to ...
- 103
0
votes
2
answers
6k
views
No entry for terminal type when SSHing into a router?
I’m trying to SSH/Telnet to my home router (Zyxel P-2812HNU-F1).
I know the router host and IP address. Also the administrator login credentials.
I’ve set ssh to port 2222 and telnet to 2323.
When ...
- 103
0
votes
1
answer
5k
views
Netcat connection closes after connecting through python
So I have installed Netcat on my raspberry pi and my mac and I can get them to connect really easily. Problem is that if I want a python script on my mac to establish the connection when the raspberry ...
0
votes
0
answers
738
views
netcat between mac and linux only working in one direction
I have two machines on the same local network. One is a Mac (192.168.42.74) and one is a Dell (192.168.42.75) running Kubuntu Linux.
If I issue 'nc -l 12345' on the Mac and issue 'echo "blah" | nc ...
- 131
0
votes
2
answers
2k
views
OS X - Static routes / non-standard default gateway for endpoints on *local subnet*
My question is: How can I reliably set up a static route in OS X, for 2 endpoints to pass via a gateway, where all machines are on the same subnet? I provide the context below:
For testing purposes,...
- 1
1
vote
1
answer
114
views
Does the Mac OS X SSH client integrate with other systems?
I have MacBook Pro running Mac OS X 10.10 (Yosemite), when I enable the SSH from (“Preferences - > Sharing”) it gives me link like this :
members-12-13.hallsnetwork.xxxx.com
Well, clearly the link ...
- 99
0
votes
2
answers
489
views
Cannot connect to a Macintosh computer on the same network via hostname. Works with IP address
I’m trying to connect two Machintosh computers using SSH via their hostname. Both computers are running Mac OS X Yosemite 10.10.2. And both computers connected via a Telus branded Actiontec T1200H ...
- 2,157
6
votes
2
answers
39k
views
How to boot Apple Mac via PXE (custom mini-Linux)
I have a network system, where I serve a mini-linux to a connecting client via PXE (pxelinux.0).
I can't get this to work with Mac OS X. Booting from network is there saved for backup operations. I ...
- 61
5
votes
2
answers
2k
views
Linux localhost sockets painfully slower than on Mac
This question is based on this thread over at OpenOffice.
I'm using Python and the Office UNO bridge to analyze documents. For the most part I run on my Mac and spin up an office instance to listen ...
- 103
1
vote
1
answer
1k
views
Changing TCP sliding window behaviour
We all know that TCP's congestion control uses additive (linear) increase and multiplicative decrease when adjusting sliding window size. Is there a way to change it to "linear decrease"?
When a ...
- 301
3
votes
2
answers
6k
views
Can’t ping between two virtual machines using VirtualBox host-only adapter in OS X
I am trying to run Kali Linux in one VirtualBox, and a De-ICE machine in another VirtualBox on a Mac (OS X 10, if it matters). I want to use the host-only adapter to connect the machines so the Kali ...
- 31
1
vote
1
answer
5k
views
How to ssh from Linux client to OS X host without error message “ssh_exchange_identification: Connection closed by remote host”?
My LAN comprises a desktop computer running Linux (Debian Wheezy), a MacBook with OS X Mavericks, and a modem-router; ssh with Linux host and OS X client functions well - no problems connecting from ...
0
votes
0
answers
107
views
Virtualbox proper network configuration
I'm trying to setup Centos 6.5 on Mac OSX so that:
CentOS can use internet using NAT mode adapter 1 (eth0)
Host (Mac OSX) can connect to Guest (CentOS) using static ip via Host Only mode adapter 2 (...
- 530
0
votes
1
answer
812
views
What does this debug info tell me about what's going wrong with my attempted SSH connection?
I'm trying to make a new connection to a remote server using supplied username & password credentials. I attempt to connect with this command:
ssh -vv -p {port} {user}@{host}
I get this output, ...
- 103
1
vote
1
answer
828
views
Change scutil HostName to ComputerName on osx
I have about 100 users with Mac Books on which I have admin access.
I have set up a dnsmasq DNS-Server on a Linux box that has the Domain "schoolnet".
Now I have the problem, that all Mac Books have a ...
- 11
0
votes
1
answer
2k
views
Networking issue solved by changing VMs MAC address of VM but the root cause of the issue is still a mystery
I have a Linux VirtualBox VM on a MacBook Air that connects to the internet via USB ethernet cable.
The Linux VM uses a bridged adapter that I switch between wifi and wired usb, depending on my ...
- 22.7k
1
vote
1
answer
135
views
Make a bridge on my mac
I have a Mac with WiFi connected to a router, internet works just fine there. I also have a PC with Linux Mint, and no wireless network card, so I connected them with a cable one to the other. Have ...
- 727
0
votes
2
answers
9k
views
How to interpret TCP/ip fingerprint when scanning for OS?
I run the command : nmap -O ip_address to identify the os and I have the result below:
OS:SCAN(V=5.05BETA1%D=8/23%OT=22%CT=1%CU=42341%PV=N%DS=0%DC=L%G=Y%TM=4A91CB
OS:90%P=i686-pc-linux-gnu)SEQ(SP=...
- 1
4
votes
2
answers
7k
views
how to close an established network connection in linux and osx
I used to do this in the Windows world with tool called TCPView: just select a established connection (ESTABLISHED), then select "Close Connection". I can't find a way to this on Mac OSX or Linux (I ...
3
votes
2
answers
37k
views
How to manually close a port
In OSX if I type netstat I can see certain things that have an established connection. I don't want to change any settings to close these, I just want to be able to close whatever I ports I choose in ...
- 14.5k
0
votes
3
answers
260
views
Linux: tunelling an incoming connection
Setup: PC I (Ubuntu 11.10, have sudo), Mac T (OS X 10.7.2, have sudo), Smart device S (barely configurable).
S can see to I on the local network, but can't see T. I and T can see each other.
There ...
2
votes
1
answer
262
views
Can you connect different OSes using an ad-hoc network?
Is it possible to connect multiple different operating systems to the same ad-hoc network so that they can play games or file sharing or network connections like LAN chat or LAN connection?
will ...
- 523
0
votes
1
answer
761
views
iTunes on iMac, media on Linux server via SMB - slow imports, changes and stalls
I have an unRAID server (If you're unfamiliar with unRAID, you can check it out at lime-technology.com) which is a Linux based server. I'm getting terrible performance with iTunes on my iMac. The ...
14
votes
2
answers
9k
views
netem for Mac OS X to emulate network latency and dropped packets
I'm looking for an open source/free network emulator tool that I could use on Mac OS X, to simulate a slow network connection, limited bandwidth and other network characteristics such as dropped ...
- 333
5
votes
3
answers
3k
views
Forward all traffic from one IP to another IP on OS X
This is related to this question I just asked...
I have two IP address on my iMac I want to "bridge". I'm not sure what the proper terminology is... here's the situation.
My iMac has a firewire ...
- 9,797