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Questions tagged [network]

Questions about configuring, troubleshooting or using connections that one device uses to talk to another.

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share vpn connection ( over internal wi-fi ) to usb wi-fi adapter ( set up as access point )

Ok, now it may be a little confusing.. I'm connecting to WiFi via my MacBook's internal WiFi adapter. Then connect to my VPN.. I want to share this VPN connection over USB WiFi adapter ( I'm using ...
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11 views

Wireguard Server configuration on macOS Mojave 10.14 - LAN routing

I'm trying to set up Wireguard as a VPN to access my home LAN devices while on the road, and also to tunnel all traffic through when connecting to possibly hostile wireless networks. I have the ...
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0answers
24 views

iOS create ad-hoc network

Is it possible (with or without jailbreak) to create a wireless access point from iOS 12 to serve as a 'router'? I don't want to share iOS internet connection, the phone will be located in a place ...
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30 views

Distribute bash script 'silently' to multiple macos machines

We want to deploy a script 'silently' across all mac machines in organization. We have created a bash script that will run using launchd agent. We need to deploy the launchd agent and script on all ...
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0answers
32 views

Figuring out what is blocking HTTP request on macOS Mojave?

I have a simple http-server running with an index.html, which I'm trying to serve over to another device over LAN. I can access the website in the host computer using localhost and it is recorded as a ...
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0answers
18 views

How to open port 3306 only for localhost traffic on MacOS Mojave 10.14.5?

I would like to open up port 3306 on my localhost but only for traffic on my local LAN. How should I go about doing that? When I check to see if the port is open I get: $ nmap -p 3306 localhost ...
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0answers
16 views

Charles Proxy -

I installed charles Proxy on my Mac. When I connect my other device / laptop, it was connecting, but none of the data was seen on Charles proxy. So I ran pfctl command: no nat on bridge100 inet ...
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0answers
46 views

OSX 10.14 Mojave SMB locking files and not releasing them

I have a Windows server with a file share accessed by a few Macs running 10.13 High Sierra and 10.14 Mojave. The Mojave Macs keep locking out every file they access on the SMB file share. So, the Mac ...
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7 views

How to make netcat output verbose information on macOS Mojave?

I've tried to use various netcat's from Brew, MacPorts, and Apple etc., but neither of them output verbose information, like "Listening to all interfaces": nc -lvp 443 [No verbose output here...] ...
3
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1answer
46 views

pf redirect rules don't work logging

TL;DR: On Mojave (haven't tested on others), when creating rdr rules in pf, the rules work for a while (with some issues accessing the target port directly), but after a while the rules stop working, ...
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21 views

How to debug why software's web page can't be reached

On my Apple OS X (High Sierra system), I am trying to install a software called PowerPanel Business from CyberPower: it's a server that monitors an uninterruptable power supply (UPS) connected via USB,...
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1answer
25 views

Use iPhone for internet and keep access to home network

I have my home network set up through my ISP provided router/modem. I know how to set up the cellular connection with my iPhone. What I want is to combine the bandwidth of that cellular connection and ...
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1answer
12 views

Unable to open a UDP port with nc

On ubuntu, I can open a UDP port: nc -lu 5555 Then in another terminal window, send a message: echo "hello" | nc -u localhost 5555 The message is received at the listener side, as expected. ...
1
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1answer
34 views

hosts file: does it pass the domain name? I'm always redirected to the main site configured on the host

My NEW server IP address is 123.456.789.123. Pointing my browser to 123.456.789.123 (http://123.456.789.123) the server serves me site alpha. Now, on the same NEW server I've configured a second ...
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0answers
18 views

WOL with an iMac (10.13.6)

I didn't manage to setup WOL (Wake on LAN) from my iMac running 10.13.6. I do have Wake for Network access enabled from system preference / Energy Saver I did enter the ethernet MAC (and not the ...
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0answers
12 views

MacBook Pro on company network loses Internet access after 10 minutes, but still has internal network access

I have a Mac user that after 10 minutes loses Internet access. The issue started yesterday. I have recreated the location with the DNS addresses in my troubleshooting efforts. When I restart after ...
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0answers
18 views

MacOS prefer /etc/hosts over DNS

My Mac is running dual stack IPv4/IPv6 which works fine. In my /etc/hosts I have added a IPv4 pointer to my development VM like so: website.test 10.10.10.35 This works fine. But I noticed that some ...
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0answers
19 views

macOS L2TP VPN connect on demand

I'm trying to create a .mobileconfig to VPN auto connect to an L2TP VPN server of mine. The problem is, if I enabled the "on demand" settings, the macOS keeps trying to connect over and over and never ...
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0answers
33 views

MacBook unable to ping outside subnet on Wi-Fi unless `-S` is used

I have a two subnets located on two different VLANs: VLAN 1 (192.168.1.0/24) VLAN 2 (192.168.2.0/24) Each subnet has a gateway at xxx.xxx.x.254. The MacBook has an IP address 192.168.2.3/24 and ...
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0answers
37 views

2018 MBP Network Throughput decreases over time [duplicate]

Summary I was recently provided with a 2018 MBP by my employer. The network throughput slows gradually until I'm forced to reboot. Setup The following machines are connected via wired ethernet to a ...
2
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1answer
38 views

MacBook Pro 2017 - suspicious network settings I don't understand

I've been looking at my network preferences and I am concerned that these settings mean someone may be spying on me. Can someone explain what proxies are and what does bypass proxy mean? And, should ...
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0answers
16 views

Program mouse and keyboard movements to be run with input on Mac

This is a very specific question. I'm running a gaming server for my friends and I to play on (on my old iMac that I just use as an external monitor for my MacBook Pro now), and I have a firewall in ...
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0answers
37 views

Native IKEv2 macOS implementation routes ALL traffic over the VPN tunnel

We wanted to upgrade our existing L2TP connections to IKEv2 for connecting to our corporate servers. The problem is as follows: With L2TP, only the assigned IP range is routed through the tunnel, ...
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3answers
306 views

Can't connect to Internet in bash using Mac OS

My browser works perfectly using the using Internet, however, when I tried to use this command in bash: ping -q -w1 -c1 google.com &>/dev/null && echo online || echo offline It gives ...
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1answer
22 views

Route specific IP through OpenVPN

I have an .ovpn configuration file which allows me to reach endpoints on the VPN if I uncomment redirect-gateway def1, but I do not want all network traffic going through the VPN. Only certain ...
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0answers
48 views

Docker process opens TCP port, but connection is refused

How can I run a simple server listening on a port, inside a Docker container? (In case it matters, this is a MacOS X 10.13.6 host.) When I run a simple HTTP Server: python3 -m http.server 8001 the ...
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1answer
40 views

How to do IP masquerading on MacOS (10.14+)?

I am looking for the equivalent Macos command to the linux: sudo iptables -t nat -A POSTROUTING -o en0 -j MASQUERADE I notice there are some very very old solutions using the ancient ipfw firewall, ...
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2answers
134 views

Photos.app is not syncing when using hotspot. How to treat hotspot as a regular Wi-Fi on macOS?

Recently I started use hotspot as my home internet. I have unlimited data and high speeds 160/40 Mbps. Everything works well except Photos.app. It just doesn't sync even a single photo. I contacted ...
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1answer
30 views

iPhone has WiFI turned off, but router is asking ARP to IP

I am using wireshark to diagnose a WiFi problem at my house. I turn everything off, except me of course, and traffic looks normal. However, when I turn my iPhone on, the router instantly starts ...
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0answers
25 views

Reseting password on employer's network account time machine backup

I recently used a time machine backup from my former work computer to give my personal computer a fresh start. I just restored the backup from my work computer (which I've now handed back in) to my ...
2
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1answer
33 views

Can't connect to LAN and internet at same time

I can't connect to a local network with ethernet and internet through WiFi at same time on macOS. The normal reordering solutions don't work. Here is the first few lines of routing table: ➜ netstat -...
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1answer
36 views

WiFi accessory connectivity issue with iOS 12

I have a WiFi to Serial accessory that I'm using with an iOS app. I was able to use it properly until iOS 12. The app requires both Wifi (to collect data from the accessory) and Cellular (to send ...
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0answers
14 views

Configure dnsmasq to respond to bootp request

I have an embedded ARM board running linux (Yocto distribution). I have connected to the ethernet port a IP camera that is using bootp to get it's initial IP address. I am using dnsmasq to respond to ...
5
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2answers
87 views

Stopping certain data from ever leaving your Mac?

Is there any way to stop certain data (e.g., a particular string) in unencrypted, clear, plain text from ever leaving my Mac by any network protocol (including my home network) but not affecting ...
0
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1answer
44 views

How to route traffic out a non-standard interface using pfctl?

I have a VPN which has setup a default route, which is (of course) different to my gateway. All my traffic therefore gets routed through the tunnel. however i would like to exempt certain apps from ...
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0answers
13 views

Any way to block a specific HTTPS request from a specific application?

There's an app running on my mac (macOS 10.12.6) that occasionally makes an HTTPS request to a resource at a specific URL. I'd like to block this request, but allow all other requests from this ...
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1answer
23 views

iPhone having problems connecting to services

I have an iPhone 7+ (NN4P2ZD/A) that has been having weird issues with connections which I’m attributing to DNS resolution problems. They only occur on home WiFi network and they only occur on this ...
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1answer
33 views

Remove old iMac from network?

Every time I boot up my iMac this message appears: 'cannot connect to [the name of my old iMac] server.' The old iMac was finally laid to rest several months ago. How can I remove it from the network ...
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0answers
34 views

iPhone: Scan Cellular Network

When I scan for Cellular Network on my iPhone (Settings app → General → Cellular → Network Selection → Manual), the only networks that I get is from my ISP, the company that I bough my SIM card from. ...
16
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1answer
149 views

Internet speed getting slower over time on MBP

Recently I've noticed that internet speeds on my MBP 2018 (Mojave 10.14.4) are decreasing with time. For example, after a day it will go from 100 MB to 60 MB and it will continue to decrease. The plot ...
1
vote
1answer
74 views

Network connection timeouts on MacBook Pro

I have an Apple MacBook Pro with Mac OS Mojave 10.14.4 running. Since 10.14.2 or 10.14.3 (I can't remember) the internet connection times out every 2 minutes or so. It takes then from 20 sec to 1 min ...
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0answers
44 views

Terminal Prompt showing scary message [duplicate]

I run om-my-zsh and my prompt usually says gregg@Gumby $ where Gumby is the name of my Mac. Today it said gregg@Michaels-iPhone $ I was not connected to any iPhone. All sharing features in ...
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1answer
54 views

Is there any way to set network preferences per Wi-Fi connection?

I work on multiple physical locations with different Wi-Fi's to connect to. Certain Wi-Fi's are within local networks that have specific network settings. I have added different "Locations" in the ...
1
vote
1answer
94 views

Routing localhost traffic to external IP address

I have a host with Mac OS and another machine (192.168.100.50) in the same LAN. I would like to configure Mac OS in that way if I access localhost:443 it will redirect to 192.168.100.50:443. I'm able ...
8
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3answers
590 views

Packet sniffer for MacOS Mojave and above

I'm looking for a packet sniffer app that runs on MacOS in a GUI (I know I can accomplish some functionality with native CLI utilities like tcpdump). Previously I used Packet Peeper, however it doesn'...
2
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2answers
416 views

Sleeping Apple Devices Responding to ARP Requests for the Default Gateway

Hoping to get some insight regarding a bizarre issue that is being seen at a few of our networks, as well as others (based off reddit and NANOG posts). The short story of what is happening is that ...
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0answers
38 views

How to connect to SMB network drive only when on network?

I use an SMB network drive as a Time Machine backup from a Macbook on my home network. What is the correct way of "lazily" connecting to that network drive so that it automatically connects when I'm ...
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0answers
11 views

Voicemail stuck in the network provider abyss

Context (we're UK based): My wife had an iPhone using the SIM card of one network provider. She then switched networks (same iPhone, new SIM card). During the porting of her number to the new network, ...
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0answers
17 views

macOS Server VPN (L2TP) speeds choking on Mac Pro, but not Macbook Pro

I have a MacOS Server (10.12.6) set up running a VPN server at one location (site A). I have a Mac Pro (10.12.6) and Macbook Pro (10.14.5 beta 3) running at a second location (site B). Both sites have ...
2
votes
1answer
19 views

Macbook Air 2013 causing Wifi Drop

Odd problem. If I use my iPhone or my wife's iPhone, my LG TV, and the Apple TV in my kids bedroom, the wifi router works as expected. The moment that I start to use a Macbook Air 2013 (Mojave 10.14.4 ...