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

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6
votes
0answers
993 views

Mac Pro loses network connection after wake from sleep since Yosemite upgrade

I have a really strange issue since i updated to Yosemite. When i wake up my 2012 Mac Pro, the network connection is totally lost. Output from dmesg (sorry, couldn't copy/paste at this time): - Nic ...
5
votes
0answers
125 views

PacketFilter on OS X preserve destination address for sshuttle

There is a cool utility out there called sshuttle (https://github.com/apenwarr/sshuttle). It has depended on ipfw to forward packets in the past. It appears that ipfw is mostly broken in Mavericks ...
4
votes
0answers
207 views

Lync and automatic reconnect

I am using Microsoft Lync (14.0.8) with Mavericks (10.9.3) on a laptop. When my IP address changes Lync does not reconnect automatically. From time to time I see a big red X icon in the dock but in ...
3
votes
0answers
54 views

How do I really (dig) flush the DNS cache on OS X 10.9?

I'm on OS X 10.9, according to support.apple.com I can flush the cache with sudo killall -HUP mDNSResponder Unfortunately this does not really refresh my DNS cache at all, also not like this: ...
3
votes
0answers
999 views

How to create a wifi hotspot on OS X WITHOUT available internet connection?

How to create a wifi hotspot on mac WITHOUT available internet connection? In Windows, we can easily create an infrastructure wifi LAN hotspot with: netsh wlan set hostednetwork mode=allow ...
3
votes
0answers
1k views

Configure HTTPS proxy on iPad

I have a secure login page on my localhost. In my network settings on the iPad I can only change HTTP proxy setting to access insecure pages in localhost. I have configured it this way: Server: ...
3
votes
0answers
935 views

Local networking: File sharing permissions over AFP

I am having trouble getting read/write file sharing working over my local network. I have shared a folder via AFP, named 'Pictures', with a specific user through System Preferences > Sharing. By ...
2
votes
0answers
31 views

Mac partially isolated from the network

Since I installed a new access point, I have troubles with only one Mac to access the printer and NAS on my network. Every other computer (Mac or PC) or device (Android or iOS) is working perfectly. ...
2
votes
0answers
33 views

Set timeout when falling asleep before network disconnects

I'm using OS X Mavericks (latest) on a 15″ 2014 MBP. There's an option to make the system not lock the screen for x number of seconds/minutes after the screen goes dim. I'm looking for an option to ...
2
votes
0answers
35 views

Sort out Apple hosts

I have a question about Apple network traffic. In my network program I can see these three domains (GET) http://init-01md.apple.com/bag http://init.ess.apple.com/WebObjects/VCInit.woa/wa/getBag?ix=1 ...
2
votes
0answers
27 views

Traceroute Terminal vs Network Utility different?

Why would a Terminal traceroute #.#.#.# show different results than using Network Utility.app? Here is the first 3 hops. I am connected to PIA VPN but regardless both methods should show the same ...
2
votes
0answers
43 views

Global Proxy - Tunnel All Traffic to Proxy

How do i make OSX go through a proxy server for all the applications that use internet? The system preferences proxy network setting only routes depending if the application supports it, but an ...
2
votes
0answers
243 views

Mid 2009 Macbook Pro 5Ghz Wifi problem

Yesterday, suddenly my Macbook's WiFi stopped working at school. I have reason to think that only the 5GHz band is effected. Personal Hotspot connection via my iPhone still works and my Wifi at home ...
2
votes
0answers
126 views

SSH to device via USB

When I try to SSH over USB to my device running linux, I get "ssh: connect to host 10.90.1.2 port 22: Network is unreachable" Mind you, I can run the same command "ssh root@10.90.1.2" on my linux ...
2
votes
0answers
385 views

Apple Remote for iPhone won't discover iTunes library without network gateway to internet enabled

This may be a networking question as much as an Apple-specific question; however it's directly related to configuration / behaviour of Apple Remote, so hoping to find an answer here. My goal: Build a ...
2
votes
0answers
459 views

iPad connects to Wifi but not to Internet

I am trying to connect my iPad to the Internet without success.I am able to connect to the Wifi network but not to the Internet from there. This router (let's call it WIFI A) I am connecting to is ...
2
votes
0answers
24 views

Apple File Sharing crashes every night at 11:37pm

I have this extremely strange and odd thing happening to me. I have an iMac - mid 2011 model with mavericks installed. It has file sharing setup with SMB disabled so that my MacBook Pro can connect ...
2
votes
0answers
599 views

Adding a third Airport Express causes dramatic network slow down

When TWO AirPort Express are on everything works as expected, strong and fast wifi everywhere, music streams fine. But when a THIRD AirPort Express is on, the wifi slows down to about 100k/s This is ...
2
votes
0answers
89 views

Does OS X support AnyIP?

I would like to assign a complete block to my mac as described in this question: Can I bind a (large) block of addresses to an interface? There it is explained that AnyIP is supported for IPv6 by the ...
2
votes
0answers
40 views

Apple 2 network connection says Selected Appletalk Connection can't be found

Apple ii is setup for ethernet with addon card. Link light is green, however I cannot ping google. It's setup for 10 Base T and used to connect just fine. I powered cycled my modem one day, and after ...
2
votes
0answers
327 views

Thunderbolt bridged with ethernet gives poor performance

I have both iMac and MBP, so I thought it might be a good idea to connect MBP to office network through iMac with thunderbolt bridge. The setup is quite simple: office server <- 1GbE -> cisco ...
2
votes
0answers
109 views

Windows 7 can't connect to Snow Leopard via Bluetooth PAN internet sharing?

I'm trying to connect Windows 7 to Snow Leopard via Bluetooth PAN but it doesn't seem to detect the Bluetooth PAN capability of the mac. It only allows transferring of files, and using it as a ...
2
votes
0answers
47 views

Block external storage for a user account

I am doing a proposal for new network where the Macs will be networked, OS X Mavericks + server app Is there any solution to disable external storage USB/Thunderbolt/Firewire/CD/ Bluetooth? ...
2
votes
0answers
4k views

SSH'ing with just a machine name on internal network: nodename nor servname provided, or not known

Yesterday I was able to ssh into my development box by using the machine name. Today, I can't. I can nslookup and use chrome to navigate to my box using just the machine name. ping and ssh do not ...
2
votes
0answers
183 views

Is there any way to tweak or modify AFP to increase transfer speed?

I have a Mac Mini, MacBook Pro and Synology DS213 connected to a gigabit switch via cat6 cables. When I enable AFP on the DS213, I get ~60mbpsUP and ~700mbpsDOWN when accessing it from Mac Mini and ...
2
votes
0answers
107 views

OSX takes several attempts to connect to internet over WiFi

When I start my mac my WiFi connects to my router as normal, however it never has an internet connection. I'm connected to my rounter and can log in to it I just don't have an active internet ...
2
votes
0answers
1k views

iPad Chromecast app cannot find existing Chromecast

I just installed the Chromecast app on my iPad (2). The iPad is running 6.1.3 (or whatever; it says it's up-to-date). I've also got a Chromecast that works fine from my Android phone, my Nexus 7 ...
2
votes
0answers
93 views

Added website with a subdomain on Mountain Lion server couldn't be found on other machines

My server is accessible via example.com and I want my website to be accessed via sub.example.com. I added a website to Mountain Lion server with domain name that's actually a subdomain; ...
2
votes
0answers
1k views

Issuing connecting to AFP shares - “(Error) Volume: Root store set to FSOnly with matching create!”

I'm having an issue connecting to my AFP shares on my unRAID server. After a couple of days of troubleshooting, I've narrowed down the issue to my Macbook and not the unRAID server. I am able to ...
2
votes
0answers
259 views

change MAC address in USB device

I'm trying to change the MAC on a USB wifi device. The usual way of doing it does nothing... sudo ifconfig en4 ether 11:22:33:44:55:66 After doing the command there are no errors, but the MAC stays ...
2
votes
0answers
112 views

“df” command making network requests?

I was watching Little Snitch for another process, and noticed df was making requests to various servers. I thought df was only for checking free disk space locally, but it appears to be doing more ...
2
votes
0answers
105 views

Strange domain name appears in Sharing Preferences, source unknown

First of all before anyone asks, I have already set my DNS name in the Terminal with scutil, which is reflected on the Terminal prompt and returned by the hostname command. I also understand that this ...
2
votes
0answers
703 views

Finder stuck at “connecting to server” via afp/smb

I own a NAS (a D-Link DNS 320, to be more specific) which has two hard drives and multiple network shares. I can connect to these network shares using the AFP or the SMB protocol. When I want to ...
2
votes
0answers
814 views

Enable Internet Sharing over Bluetooth PAN

I'm trying to share my MacBook Pro's internet connection with my iPad over Bluetooth. The MacBook is running Snow Leopard. On the Sharing preference page, I can select Ethernet as the source, but ...
2
votes
0answers
547 views

How to fix 10.8 internet sharing resulting in poor file sharing performance and no Time Machine server?

TL;DR - File sharing performance is extremely poor on a Mac Pro running 10.8.2 with file sharing enabled. Using it as a Time Machine server also no longer works in this setup. I have been ...
2
votes
0answers
57 views

Renew for OpenAFS does not work

I use OSX 10.8.2 and OpenAFS 1.6.1a. Even I have checked "Enable auto-renew", the ticket allways expires. My settings: Seconds before expire to renew: 4000 Ticket renewal check frequency: 3600 In ...
2
votes
0answers
480 views

Can't see AirPlay speakers/Airport Express if ethernet is plugged in

When my Windows laptop is connected to my network via Wi-Fi only, I can see and play to various AirPlay speakers in my house (an iHome AirPlay speaker, an Apple TV, and an Airport Express). When I ...
2
votes
0answers
60 views

Wired network disconnects on 21.5" iMac

At work, I've got a new 21.5" iMac. If I leave the machine alone for 20-30 minutes, the wired network will lose it's connection. After I do something on the machine, the network comes back (usually ...
2
votes
0answers
832 views

On resume from sleep, DHCP or ARP on the ethernet is not working

My mid-2011 iMac running Lion 10.7.5 has an intermittent problem. When I resume from sleep in the morning the ethernet fails to come up reliably. Sometimes it starts working immediately, sometimes it ...
2
votes
0answers
1k views

Network share permissions problems in Mountain Lion

After upgrading to Mountain Lion, I have experienced some weird problems with network share permissions. This network share is a Windows server which I login to like so: ...
2
votes
0answers
780 views

Do DHCP Client IDs showup in Airport Utility when Computer Name is shorter than 16 Characters?

My Airport Utility's (version 5) DHCP Clients list used to show the DHCP Client ID for each client, as defined for each connection in System Preferences/Network. I then went and changed the ...
2
votes
0answers
372 views

How to prevent an automatic network share connection at startup?

Problem Synopsis: I have a WiFi router that can connect to a USB storage device and then allow access to that device over WiFi. I had once connected my Mac (OS X Lion 10.7.4) to such a storage device ...
2
votes
0answers
310 views

Multi node cluster setup with home network for parallelized computing using e.g. hadoop, MPI or Rmpi

currently I am reading more and more about multi-core processing (threading) and parallel computing. So I was curious about how to use my 4-core processor to calculate parallelized algorithms using ...
2
votes
0answers
366 views

Browsing to a nested subdomain resolves wrong page

Our corporate network has some web applications hosted in a nested subdomain hierarchy. A "subdomain's subdomain", as you will. For example: Root-> http://*.mydomain.com (resolves to: 192.2.2.200) ...
2
votes
0answers
3k views

Automatically setting custom routes with the internal VPN (IPSec/L2TP) client

I have a IPSec/L2TP (PSK) VPN I'm connecting to with OSX's built in client through the System Preferences > Network (in Lion/10.7.2). The VPN gives me an IP of 10.0.1/24, but I need to access servers ...
2
votes
0answers
268 views

migrating Ubuntu DHCPD to OS X Server

My LAN includes an Ubuntu 9.04 server which runs an ISC DHCP v3 daemon. I'd like to migrate the data from that daemon to a Lion OS X Server. Is there an easy way to do this (by copying the Ubuntu ...
2
votes
0answers
1k views

How to set up airport express to be dns server for my home network?

I currently have an airport express as my router. I've configured it to look to an external dns server. on the inside of my network my machines are told to look to the airport express for dns. This ...
1
vote
0answers
11 views

Yosemite Server / Domain Configuration advice

I'm configuring a mac mini server (latest Yosemite) and I'd like some advice/guidance. I have a registered domain in use for my website, mail and some subdomains – all externally hosted. I'd like to ...
1
vote
0answers
11 views

Preventing Icon Previews on Network Volumes

Anyone that's tried to connect to a remote drive with a lot of images or movies on it knows that the Finder just falls to pieces when you do, as it hammers the server with requests to generate all the ...
1
vote
0answers
49 views

Is it possible to throttle the iCloud photostream sync in OS X?

I have a large iCloud photo library. Once in a blue moon my iMac running Yosemite decides to forget all about the synced libraries, and I have to re-enable the iCloud streams. However, my little DSL ...