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Unanswered Questions

16,381 questions with no upvoted or accepted answers
10 votes
1 answer
10k views

Raspberry Pi won't bring up wlanX interface - multiple wireless interfaces

Let me jump straight in. I am using a raspberry pi 3 running latest version of raspbian (pixel) as a router/wifi hotspot I have 3 wireless interfaces: built in wifi interface (brcmfmac) TP-Link ...
10 votes
3 answers
2k views

Attach to the same tmux session from different nodes of a cluster

I'm working on a computing cluster which has several hundreds of nodes. A load-balancing scheme picks an idle node to login to when ssh-ing into the cluster. As a result, it is very unlikely to re-...
9 votes
0 answers
12k views

What IP/ports should be opened for Docker Hub?

Given our client's restrictions, we cannot have our VMs completely open to the internet. However, we sometimes need to pull Docker images from Docker Hub. We can white-list IP addresses and ranges, ...
9 votes
0 answers
8k views

Why is there no UDP port forwarding in SSH?

I know SSH can forward TCP ports, not UDP. I'm not seeking help to circumvent this restriction (this subject is covered here). I'd like to know what is the reason SSH never got UDP forwarding ability....
9 votes
0 answers
1k views

OS X: let scutil use stored secret when connecting L2TP VPN

This is a follow-up question of Start configured VPN from command line (OSX). I tried the answer by @encoded, which suggests the following command: scutil --nc start [A-name-of-VPN-configuration-...
9 votes
2 answers
4k views

Cannot make mobile broadband Vodafone USB connection Ubuntu 13.04

I have Ubuntu 13.04 and I bought yesterday a Vodafone USB stick for internet connection. I am located in Romania. This is what I've did: First Thing Network Connections, added connection. Selected ...
9 votes
0 answers
3k views

Mac OS X routing table protection

I'm looking for a way to protect my Mac OS 10.8 routing table. After connecting to my employer's network using the Cisco AnyConnect Secure Mobility Client, a bunch of new routes are installed into my ...
9 votes
1 answer
2k views

sshfs: cannot set file timestamp

Using sshfs with autofs on Ubuntu, I cannot set timestamps on remote files: $ touch /sshfs/server/some/file touch: setting times of `/sshfs/sshfs/server/some/file': Permission denied I do have write ...
8 votes
1 answer
7k views

ssh randomly can connect, and sometimes "kex_exchange_identification: Connection closed by remote host"

Connecting to my server has never been a problem. But now I've added a mesh router in bridge mode to my regular router, and when I try to ssh to my server, sometimes it works fine, and other times ...
8 votes
0 answers
5k views

Connecting Android to Windows VPN

I have set up a VPN on my Windows 10 computer by going into Control Panel\Network and Internet\Network Connections and hitting Alt and then going to File > New Incoming Connection... and setting up ...
8 votes
2 answers
6k views

Shared connection frequently closes when opening a new connection

I'm making heavy use of reusing a shared connection which I open to a remote box at the beginning of my workday. My .ssh/config looks somewhat like this: ControlMaster auto ControlPath ~/.ssh/...
8 votes
1 answer
16k views

Enable SMB file sharing on OS X - "Incorrect Password"

I have a Mac running Snow Leopard connected to an Active Directory domain. I can share folders on the Mac and view files from Windows without problems. When I try to enable my Mac account for write ...
8 votes
1 answer
36k views

Pass VirtualBox Guest connections through proxy

The computer is inside a company and only have internet access through proxy. I want the guest inside the VirtualBox to access the internet without changing anything in the guest. The host is Windows ...
8 votes
1 answer
2k views

How to prefer ipv6 over ipv4 only for specific websites?

I only have ipv6 connectivity via a HE tunnel on my router, so normally I want to prefer ipv4 over ipv6. For some websites however, I would like to prefer ipv6. Right now I have just set ...
8 votes
1 answer
733 views

Forcing *BSD to accept both IPv4 and IPv6 traffic on a single socket

I have tried a ton of stuff and keep coming up entirely empty handed. Allow me to frame the situation: I have a *BSD Jail setup in FreeNAS that runs a Plex Media Server (Plexpass). It has IPv6 ...

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