Questions tagged [mobile-devices]

In IT, "mobile devices" (often shortened to just "mobile") refer to small, portable computers like smart phones and tablets.

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Why do mobile networks have high latencies? How can they be reduced?

I'm increasingly seeing mobile networking technologies being used to get internet access in areas where it is otherwise not available. While mobile networking is usually not yet viable as the primary ...
sleske's user avatar
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40 votes
34 answers
8k views

Best smartphone for sysadmins?

I need a cell phone that will help me keep an eye on my servers and services when I am away from my computer/desk/workplace. Which smart phone would you recommend for sysadmins? An SSH client is a ...
31 votes
1 answer
6k views

illegitimate traffic from user agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10 (.NET CLR 3.5.30729)

This is a rapidly changing event that has no answer yet. Please do not post your findings or assumptions as answers; reserve the answer field for when you actually have an answer. If you ...
22 votes
3 answers
11k views

How do I create the identity certificate required to setup Mobile Device Management on an iOS device?

I'm trying to provision an iOS device to be managed using the Apple MDM capabilities. Using the iPhone Configuration Utility, I'm trying to create a configuration profile. Under the Mobile Device ...
Chris Vasselli's user avatar
16 votes
1 answer
42k views

How are cellphone IP addresses assigned?

When my cellphone accesses a website via the tower and its GPRS gateway, NAT ensures that the sites receive a public IP. Would all phones using a single tower have the same IP? If yes, then how can ...
Robin Rodricks's user avatar
10 votes
1 answer
11k views

What Prosody modules do I need to support Conversations?

I am configuring a Prosody server for use with mobile clients supporting OMEMO. I've picked Conversations as a reference client since I'm familiar with it. What Prosody modules do I need to install to ...
lofidevops's user avatar
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8 votes
1 answer
5k views

Serve different files for specific user agents using nginx

Using nginx, how do you serve different static files for different user agents? For example, if the current user is using an iPhone, they should be served mobile_index.html, whereas all other user ...
summatix's user avatar
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7 votes
6 answers
3k views

Android software for the system administrator on the move [closed]

My company has over service through Verizon, and AT&T Service in the area is "shoddy" at its best, so I haven't been able to join the "iPhone party" like so many of my fellow system administrators ...
7 votes
1 answer
5k views

IIS 7.5 Redirect / URL Rewrite to mobile version of website

I'm looking for an IIS solution (not programming) to redirect a website to a mobile version of the website. It looks like it might be possible, but not sure, with IIS Redirect or using IIS URL Rewrite ...
thames's user avatar
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7 votes
1 answer
11k views

What is the best TCP congest algorithm to use for a mobile device?

Given the multitude of TCP algorithms available now and the rise of Linux based mobile devices, what are ideal algorithm(s) to consider? From reading of the various implementations, Veno and Westwood+...
cbc's user avatar
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7 votes
4 answers
281 views

Prevent end-users from purchasing apps on iOS

We are looking to deploy iPads from inside our organization. We want to be able to install apps for users, which can be done via Mobile Device Management. However, we do not want users to be able to ...
Mustard's user avatar
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6 votes
9 answers
2k views

Recommended drive encryption solution

I will soon be purchasing a number of laptops running Windows 7 for our mobile staff. Due to the nature of our business I will need drive encryption. Windows BitLocker seems the obvious choice, but it ...
Chris Driver's user avatar
5 votes
7 answers
956 views

Computers and air travel

What should I be aware of when bringing a computer on an airplane? general answers welcome but... I'm particularly interested in: Are computers bothered by X-ray machines or anything else that ...
BCS's user avatar
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5 votes
2 answers
368 views

How does www mobile redirection work? [closed]

How does a website detect whether http requests are comming from a mobile device or not? In my mind, it's all just TCP/IP packets with a standard address/port header right? Is this a hardware/...
Chad Harrison's user avatar
5 votes
2 answers
32k views

How does 3G/Mobile phones get allocated an IP address? Does this mess with Google Analytics? [duplicate]

This question is in two parts. Q1. How does a mobile phone get an IP address over 3G? Like, would it get the same IP for a shortish period of time (Eg. 1 day, etc)? Because my phone is constantly ...
Pure.Krome's user avatar
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5 votes
1 answer
119 views

Manage Certificates on 500 Mobile Devices [closed]

Is there a tool to facilitate setting up and managing certificates for mobile devices (running Windows Mobile 5) The end goal I have is to have my WCF Services (run on IIS) only trust these ...
Vaccano's user avatar
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5 votes
2 answers
2k views

Does Android version 2.2 locally encrypt Activesync messages?

I am a sysadmin for company X. They are interested in allowing ActiveSync access to devices that support local offline encryption of the downloaded attachments and email data. Considering how the ...
makerofthings7's user avatar
5 votes
1 answer
3k views

How to not redirect when cookie is set in haproxy?

On my site I redirect users with mobile devices to a mobile site using my Haproxy loadbalancer. I got some complaints about that and want to offer the users a link back to the "classic" portal. As not ...
OpenHaus's user avatar
4 votes
3 answers
1k views

With more mobile users, my geo ip database is becoming useless

I've been enjoying the benefits of Geo IP lookup from database for some time. It's great. People are increasingly trying to access my site from a mobile phones or 3G modems, and their physical ...
user avatar
4 votes
2 answers
5k views

SSL will not work on Android mobile

I bought Comodo SSL from Namecheap. Now, the SSL works fine on desktop, I am getting a "This Connection is not private" on mobile phone.. on my chrome on Android Here is my virtual host file: server ...
test's user avatar
  • 167
4 votes
1 answer
139 views

Load multiple email accounts to mobiles from IT desk

My organisation has many users (in the hundreds) with many email addresses that they can read (often as many as 10 per user) and can send from (for arguments sake, lets say half of those that they can ...
Nameless One's user avatar
4 votes
2 answers
3k views

Routing to proxy and code injection into files served on local network

I'm trying to set up an Open Device Lab. This question focuses on the network routing of and injection of code into the responses to requests made by the test devices. I want people to be able to come ...
Xandor Schiefer's user avatar
4 votes
2 answers
6k views

How can I use apache to redirect users (based on user_agent and using mod_rewrite) to my mobile site only if a mobile pages exists.

I want to detect mobile users based on their user_agent. If a user is browsing the full version of the site and they have a certain user_agent, I want to redirect them (using mod_rewrite) to the ...
ckliborn's user avatar
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4 votes
2 answers
2k views

Nokia E75 Mail for Exchange

I have a SBS2003 runing Exchange Server 2003 SP2. My OWA has a godaddy certificate valid for 3 years to come installed. HTTPS works fine for OWA. The certificate has also been copied into the Nokia ...
user avatar
3 votes
6 answers
393 views

How do you secure your mobile computers?

The possibility of having one of your users' laptop being either stolen or lost is fairly high. What are some of the best practices/policies when protecting your data on mobile computers? ...
TechGuyTJ's user avatar
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3 votes
3 answers
630 views

Can anyone guess what protocol these packets belong to?

We see these packets being injected in an FTP-DTP channel during a downlink file transfer on Telstra's NEXTG mobile network. We are not sure if these are network level packets, a problem with our 3G ...
user avatar
3 votes
1 answer
623 views

Are there any Microsoft Exchange Clients for iOS and Android that store their local data in an encrypted manner?

I don't feel like this is a product recommendation question, more of a "does this tech even exist and is it feasible" question, but if I'm wrong, feel free to give this question the boot. Context: ...
Zac B's user avatar
  • 841
3 votes
2 answers
445 views

Slow web responses to mobile devices clog my apache workers

I'm running a web server (apache, but I don't think there is really a difference), that serves a lot of requests to mobile devices (hundreds per second). The server is a mix of a pure web server with ...
Pawel Veselov's user avatar
3 votes
2 answers
747 views

Round-Robin DNS in mobile networks

After reading load distribution alternatives and giving my limited skills on the area I'm biased toward round-robin DNS strategy. From what I understood, one key aspect of DNS Round-Robin is setting ...
k7k0's user avatar
  • 265
3 votes
1 answer
101 views

Mobile device access policies

HR wants us to prevent part-time hourly staff from checking email while off the clock. Is it possble to disable Activesync and OWA via exchange policy for users in a particular group? I have looked ...
AWippler's user avatar
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3 votes
2 answers
491 views

When redirecting a mobile browser to a m.domain.com subdomain, what status code should I return?

I'm curious what status code I should be using when redirecting a mobile browser that hits domain.com and is redirected to m.domain.com. I feel like a 301 (Moved Permanently) isn't quite right, but ...
adam's user avatar
  • 133
2 votes
4 answers
18k views

Exchange user is no longer receiving email on Android phone

Mfg/Model: Samsung Droid Charge Android Version: 2.3 Provider: Verizon Error: Failed to connect The user was previously receiving emails just fine on his phone, but since this morning, he hasn't been ...
rb195048's user avatar
2 votes
3 answers
1k views

odd query strings in Googlebot requests

Google's indexing bot (edit: yes, it's Google, IP resolves) seems to be adding arbitrary query strings to our home page. xx.xxx.xx.xxx - - [30/Jun/2009:10:14:37 -0400] "GET /?key=61680 HTTP/1.1" 200 ...
ceejayoz's user avatar
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2 votes
1 answer
765 views

Is is possible to use WSUS to update sufrace pro devices from sbs2011

We have surface pros in SBS2011 environment is it possible to use wsus in sbs2011 to manage update for surface pro devices? additional notes: so far surface pro devices shows up in sbs server console, ...
zman's user avatar
  • 633
2 votes
1 answer
5k views

Lync server mobility check response: No response received for Web-ticket service

I've deployed simple lync 2013 infrastracture. 1 edge, 2 front end, 1 webapp, 1 backend for mssql databases, and AD + CC. Everything works great except mobility. When I run Test-CsUcwaConference, ...
KevinOelen's user avatar
2 votes
1 answer
1k views

Windows 8 Tablet authenticates to wireless network: Disconnects 3 seconds later

The wireless network is secured with WPA2 enterprise and has been in production for some time. Recently, we have had several Windows 8 clients that have been having a hard time joining the network. I ...
MDMoore313's user avatar
  • 5,591
2 votes
2 answers
2k views

serving mp3s to mobile devices is flooding nginx with partial requests

I am serving mp3s with a minimalistic nginx server. What I see in my log files is that there are a lot of requests, in particular from AppleCoreMedia and sometimes Android useragents, that flood the ...
drumfire's user avatar
  • 1,709
2 votes
2 answers
2k views

How to use VirtualHosts in apache2 for mobile subdomain?

Need some help to redirect to a mobile subdomain. Currently both m.domain.com and domain.com will go to var/www/html/mobile. Obviously I need domain.com to direct to var/www/html and m.domain.com to ...
aciid's user avatar
  • 45
2 votes
1 answer
4k views

Bypass cache for mobile user agents, VARNISH+NGINX+W3CACHE

Right now I'm running Wordpress w/ W3 Cache on nginx with varnish front end. I'm trying to use the WP Touch Pro plugin for wordpress to display mobile sites, but it is not working. Shows the desktop ...
Mike McGhee's user avatar
2 votes
2 answers
1k views

SSL issues on a mobile website

We are experiencing issues with some mobile devices such as Windows Mobile (not Phone 7) and BlackBerry's not able to go to a SSL website of ours. The errors returned are below on our Windows Server ...
thames's user avatar
  • 955
2 votes
1 answer
15k views

Exchange server not serving mobile devices - how to troubleshoot?

Our exchange server has suddenly stopped serving mobile devices. Attempts to connect result in our ActiveSync server returning HTTP 500. It is serving outlook clients fine. Our server is Windows ...
chickeninabiscuit's user avatar
2 votes
0 answers
324 views

Is there any way to get log events from crashlytics / fabric into ELK or a SaaS metrics platform like datadog?

If you use a stack like ELK or datadog for collecting server-side logs and events, how do you integrate mobile-side metrics? Is there any way to get these out of crashlytics directly, or does this log ...
fields's user avatar
  • 690
2 votes
1 answer
122 views

Mac Management Without Permission and Security

I was going through some literature on managing OS X laptops and asked someone some questions about usage scenarios when using the MacBooks. I asked someone more knowledgeable than I about whether it ...
Bart Silverstrim's user avatar
2 votes
1 answer
509 views

Is it possible to force the Apple Darwin Streaming Server to send streaming over port 80?

Is it possible to force the Apple Darwin Streaming Server to send streaming over port 80Is it possible to force the Apple Darwin Streaming Server to send streaming over port 80? Background: We have a ...
Johan Carlsson's user avatar
1 vote
2 answers
359 views

Can I have TCP timouts up to 10-20 minutes?

It it important to rely on TCP guaranteed delivery even in case of mobile client which could disappear in a tunnel for a long time when TCP with standard settings give up and close the connection. Is ...
user's user avatar
  • 11
1 vote
1 answer
65 views

Is it okay (or even recommended for performance) to point mobile subdomain A record to different IP?

Is it okay or recommended for performance/load balancing to point the A Record for your mobile subdomain to a separate server, with its own IP address?
ChefBoyRDang's user avatar
1 vote
3 answers
1k views

Bind DNS - Allow Recursion from Mobile Clients

I'm not quite sure how exactly to phrase what it is I need, which makes searching challenging. :) Basically I've got Bind DNS running on RackSpace instances and I want to set named up so that any of ...
justinzane's user avatar
1 vote
2 answers
988 views

RDP Over Mobile Satellite Internet

I am planning a vacation to a destination that will not allow me to have cell or Internet service. I play a role in my organization such that in an emergency situation, my availability is of some ...
bdeetz's user avatar
  • 13
1 vote
1 answer
13k views

Include inheritable permissions from this objects parent unticks itself - Server 2008R2 / Exchange 2010

In order to get mobile email syncing to work in our Exchange 2010 / Server 2008R2 we have to go to the users account in AD, go to properties, security, advanced and select the top object which is an ...
RodH257's user avatar
  • 569
1 vote
1 answer
1k views

How to set up a proper OpenVPN infrastructure for multiple, independent client-to-client communication with central OpenVPN server in the middle [closed]

I have a little bit of experience with setting up a simple OpenVPN solution where a few clients connect to a central server and communicate altogether in one VPN. However I am now about to set up an ...
darkmattercoder's user avatar