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

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3
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0answers
814 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
7 views

iMac wireless speed drops precipitously after extended time away

This is the damnedest thing. I have great internet: But as of a few days ago, whenever I come back to my computer after a while and jiggle the mouse to turn off the screensaver, my internet speed ...
2
votes
0answers
69 views

Why will my Mac only load Google and Facebook?

I'm running into this really strange problem on my 2013 iMac at home (running Mavericks): the internet will work for a while, then at some point it will stop being able to load any websites except for ...
2
votes
0answers
27 views

When I tether a MacBook Pro to an iPhone/iPad, how can I restrict what apps use it?

I want to prevent Dropbox, Skydrive/OneDrive, and Google drive from syncing (for example) when my laptop is connected to my phone. In other words I'd only like to sync email, use VPN, and permit ...
2
votes
0answers
34 views

Connection through telnet only works in safe mode

I'm running Xamarin's iOS Build Host app on my machine. It uses telnet on port 5000 to allow connections to it. Suddenly, this connection no longer works. telnet localhost 5000 HELO returns ...
2
votes
0answers
20 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
172 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
51 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
37 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
219 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
73 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
36 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
2k views

How to access wireless channel 13 and above from a US Mac Book Pro?

When traveling internationally and connecting to an 802.11g wireless network I'm unable to connect because non-US access points default to using channel 13 and up. From what I hear if the Mac Book Pro ...
2
votes
0answers
132 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
90 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
528 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
87 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
786 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
277 views

How to resolve netbios names with osx

Hi I'm new to osx and trying to resolve the netbios name of a windows machine. When I try to ping it I get the error cannot resolve hostname. When I use the command smbutil lookup %hostname% it will ...
2
votes
0answers
188 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
101 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
664 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
492 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
54 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
460 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
59 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
715 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
712 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
243 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
333 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
253 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 ...
1
vote
0answers
8 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 ...
1
vote
0answers
19 views

Help me assess my internet connection's problem

I'm currently pinging google.com to find a trend and pinpoint the problem. The internet keeps disconnecting every few mins and I have no idea why. What I realised is that between every 4-6 pings I ...
1
vote
0answers
21 views

Devices in OS X Internet Sharing can't see each other

I really like the feature of OS X to share it's Ethernet connection over WiFi to other devices. But it appears that those devices are unable to "see" each other (e.g. you can't play a LAN game with ...
1
vote
0answers
64 views

Can't save files to Windows SMB share

I've been experiencing this since I got my new MacBook... At my job, we work I'm a Microsoft environment. Our servers use SMB3. Our IT deptartment also doesn't officially support Macs. We also use ...
1
vote
0answers
33 views

What side effects, if any, are there from issuing scutil --set HostName 'Fred'?

I have read that you can change all of the three "computer names" associated with a Mac using the scutil utility. The three names in question are ComputerName (the "friendly" name), LocalHostName ...
1
vote
0answers
60 views

iMac 21.5″ Wi-Fi Issues

My iMac constantly dropping its internet connection in the last couple of days. I'm connected to a 2.4GHZ Airport Express. Not a router issue, because my iPhone and iPad works just fine, no ...
1
vote
0answers
25 views

Tunnel all traffic over HTTP

I often end up in a situation where I connect via public Wi-Fi connection, and it's severely crippled (HTTP only, no SSH, no SMTP). I want to set up some kind of HTTP tunnel for all traffic in the ...
1
vote
0answers
14 views

Screen sharing with server fails

I am managing a Mac server cluster and I can do screen sharing from my Mac to the cluster without a fuss. However a colleague of mine receives the following error upon trying to switch on screen ...
1
vote
0answers
38 views

Receive Apple Push Notifications behind a VPN

Hey guys I tried to search google for this particular question but couldn't find a solution which fits my question. I'm trying to build an app which works only when VPN is configured properly. (The ...
1
vote
0answers
15 views

Connecting via AFP with no timeout

My Mac at home is asleep, but it sometimes wakes up for various reasons, and I want to connect to it via AFP once it's awake so it will stay awake and let me access files. When I do an AFP connection ...
1
vote
0answers
35 views

OS X Mavericks system-wide VPN settings doesn't work for particular applications

I'm using OS X Mavericks and I have a systemwide VPN setting that web browsers like Safari work well. However, I also want the LINE instant message software to use this VPN setting, but LINE seems to ...
1
vote
0answers
58 views

Is it possible to use a proxy with a 3G connection on an iPhone?

I'm currently using a proxy over Wi-Fi connections on my iPhone 4S, but there doesn't seem to be an option to apply it to 3G connections. I tried configuring a configuration profile with iPhone ...
1
vote
0answers
23 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 ...
1
vote
0answers
11 views

Clone a NetBoot Drive

I am in a small pickle. Basically, I have a netboot server (I think, when you press option at startup, drives with small globes appear) but I cannot access it locally, and I need to clone it to a ...
1
vote
0answers
72 views

How can I copy the full smb:// link from a file in Finder?

I work in a Windows environment with many different shared drives. I commonly have Finder windows open to different shared drives and nested folders. I have a Service set up (that I created in ...
1
vote
0answers
146 views

iPhone 5s lag related to repeated nsnetworkd crashes

Something weird is happening with my iPhone 5s on iOS 7.1.1. For the past week, it's become very laggy, where if I try to interact with it via software, Bluetooth, or even the physical buttons, it ...
1
vote
0answers
50 views

autossh not forwarding, regular ssh tunnel does

Starting autossh like so: autossh -M 5122 -N -R 5432:localhost:5432 <user>@<myhost>, I can't connect to localhost:5432. If I run ssh -f <user>@<myhost> -L 5432:localhost:5432 ...
1
vote
0answers
26 views

Recommend a network service monitoring application

I'm a network administrator for a medium-sized network. I'm looking for a fairly simple piece of software that will alert me (visually, by email, or some other mechanism) when one of the services on ...