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• DNS PTR record when domain on shared IP address

  - by Marco Demaio

  Hello, I own a typical shared IP hosting plan and domain. I can modify the DNS of the domain from the control panel. The mailserver shares the same IP address, so my typical DNS config is: www.mydomain.com A -> IP mydomain.com A -> IP ftp.mydomain.com A -> IP mail.mydomain.com A -> IP mydomain.com MX(10) -> IP I read some Q&A on this site where they suggest to add PTR record mainly for mailserver. I would like to add PTR record to my domain, I have got two questions: 1) can PTR record be added even if the hosting/mailserver are on a shared IP address? Or do I need a dedicated IP. 2) How do I setup PTR record, I mean does it look like A record: mydomain.com (PTR) -> myip

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• Connectiong adsl router/modem and router with bridgemode

  - by Zvonko Telefonko

  I have one adsl modem/router which is not "top" of the line and it lack allot of options which I need. I was able to acquire one Cisco router recently which has all options that I need ( like DMZ, VPN, port forwarding, etc). I'm interested, if I connect the old modem/router to new Cisco router using bridge mode, will I be able to use all the features on the Cisco? For instance, the old router is lacking of port forward options. Does this mean that I will not be able to use port forwarding on Cisco router either or, since I will be using bridge mode, this will not affect Cisco router and it will work as the modem is in him? thank you

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• recover files from encrypted home folder

  - by maskiepop

  I can't seem to find the answer to my questions -- hence my posting this here. 1) I have encrypted my home folder in LinuxMint 15 Cinammon x64. If I create images of LM's partitions via fsarchiver, how do I go about selectively restoring home folders, and files from the FS images? 2) I haven't done this yet; but can I restore another users home folder into another user; both unencrypted. Is that a fairly common thing to do in Linux/ubuntu? I mean is the process fairly straightforward? What if the home folder I want to copy over to another user is encrypted? Thx

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• HP ProCurve Port Mode Configuration Question Mark 2

  - by SvrGuy

  We have a ProCurve Switch 2810-48G (J9022A). We need to disable auto negotiation on two ports and manually configure them to be full duplex gige ports. From the web GUI, Configuration Tab, Port Configuration sub tab, I am only presented with the option to configure the port as Auto - 1000. I take this to mean, auto negotiate duplex, manually configure the speed to be gige. From the CLI when I try to set 1000-full I get the following error: Value 1000-full is not applicable to port 39 (or whatever port I try) The exact commands I have entered are: config interface 39 speed-duplex 1000-full BTW: speed-duplex auto-1000 works ( I also tried full-1000 and that did not work either) How do I manually configure the port such that it is manually configured to use full duplex, 1000 mbs?

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• How to convert series of MP3 to a M4B in a batch

  - by Artem Tikhomirov

  Hello. I have a batch of MP3 based books. Some of them divide into files according to book's own structure: chapters and so on. Some of them was just divided into equally lengthened parts. So. I've bought an iPhone, and I want to convert them all to M4B format. How could I convert them in a batch? I mean how cold I set up a process once, for each book, and then, after couple of weeks, receive totally converted library. The only able program for such conversion I've found was Audiobook Builder for a Mac. But it is pretty slow and do not support batching in principle. Solutions for any platform, please.

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• Does stunnel prevent non ssl traffic to "the" specified port?

  - by user432024

  So say I have an arbitrary tcp port 12345 and it's non ssl and I want to put stunnel to secure traffic to it. When stunnel is in front of it does it mean that this port is now tls/ssl only? Or can you still connect to it unencrypted? Basically I want to make sure that this port can only be accessed through ssl/tls and stunel and no other way. Clarification I want to make sure only stunnel port is open. Which is answered in the comments that the unsecured port should be fire-walled but preferably bound to localhost.

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• What can I do to give some more love and disk space to my database on Ubuntu?

  - by Yaron Naveh

  I'm new to linux. I've deployed a db to ubuntu server on amazon and found out I'm low on disk space. did df (see below) - and found out that I'm 89% capacity on one file system, but less on others. What does this mean? Do I have a few partitions and can now utilize others besides /dev/xvda1? Also /dev/xvdb seems large, is it safe to put the db in it and only use it? If so do I need to mount it or do something special? $> df -lah Filesystem Size Used Avail Use% Mounted on /dev/xvda1 8.0G 6.7G 914M 89% / proc 0 0 0 - /proc sysfs 0 0 0 - /sys none 0 0 0 - /sys/fs/fuse/connections none 0 0 0 - /sys/kernel/debug none 0 0 0 - /sys/kernel/security udev 3.7G 8.0K 3.7G 1% /dev devpts 0 0 0 - /dev/pts tmpfs 1.5G 164K 1.5G 1% /run none 5.0M 0 5.0M 0% /run/lock none 3.7G 0 3.7G 0% /run/shm /dev/xvdb 414G 199M 393G 1% /mnt

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• QR Codes for Files on Google Code

  - by Synetech inc.

  Hi, When you download files from Google Code now (example), in addition to the text version of the SHA1 hash, it includes a QR code of it. The device that the file was downloaded to is the one that has to hash the file. But, if it can download the file (ie, has access to the webpage), it also has access to the text version of the hash, so the QR code seems completely useless—and more work to decode when the raw text is available. How would reading the hash into a mobile phone allow you to verify the file you download to the computer? Or if you download the file to the phone, how would you use the phone to take a picture of the QR code displayed on the webpage on its own screen? Does anyone know what the point to the QR code is or how you would use it to verify the downloaded file (I don’t mean QR codes in general, but specifically in this context).

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• How do I revert back to windows 8 from 8.1?

  - by chipperyman573

  I hate the new windows 8.1 search. I mean a truly loathe it. It's easily the absolute worst thing Microsoft has ever made (including bing and IE). I asked how to get the old search back and the answer was that you can't. Honestly, I haven't noticed any changes from 8 - 8.1 besides a single tile has changed color (dunno why, the color doesn't even match the icon), and I really hate this new search thing. So how do I get 8 back?

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• HP Envy webcam pictures all purple

  - by kousen

  I have a new HP Envy 15 with an integrated webcam, running Win 7. It works, but all the images are purple, suggesting to me that the red and blue guns are working, but the green isn't. The problem shows up on both their own software and on Skype. I talked to tech support, and they had me update the BIOS, reinstall the hardware BIOS for the webcam, and update the webcam software. It therefore sounds like a hardware problem, but they won't back that unless I do a full restore, which would wipe my disk of all the software I've spent the last couple of weeks configuring. Is there anything else I can try? Other than just buying another webcam, I mean. Any suggestions would be appreciated.

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• How does fail2ban 0.9 database storage actually works?

  - by Arantir

  Fail2ban 0.9 introduce database storage to save bans on restart. But I can't find out the actual mechanism of it work. There is dbpurgeage parameter which controls lifetime of old bans, defaults to 24 hours. As I see from code research, fail2ban saves a ban to the db with timeofban equals to the moment of ban being saved. Then every dbpurgeage period it removes all bans with timeofban < MyTime.time() - self._purgeAge, in other words removes all bans have been stored more than 24 hours ago. But what if an IP was banned for the month? Does all this mean that with dbpurgeage = 86400 after restart in 24 hours I will lost all bans longer than 24 hours? I just want that all my permanent bans will be preserved in any case.

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• Fonts in Google Chrome messed up

  - by user1850463

  I recently installed new fonts on my computer that my friend sent me so I can use them in Adobe Photoshop. When I downloaded the ".zip" folder containing the fonts I unzipped the folder, pressed Ctrl+A to highlight all of the font files and then I right clicked and clicked "Install". That is how I installed the fonts. Now the fonts in Google Chrome are messed up. When I go on websites such as Stackoverflow, Facebook, etc. the fonts are different and look really odd. Random parts of text are bolded or italized, etc. I'm using the latest version of Google Chrome and Windows 8 Pro. I took 3 screenshots to show you what I mean.

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• If fiber runs 1gig fine, are there any concerns when considering upgrading to 10gig transceivers?

  - by Eric

  We had fiber installed (connecting ~10 buildings) around 5 years ago and it has been working great. The initial setup involved Procurve 2848 and 2824 switches w/ 1gig transceivers. However, lately we have been considering upgrading our network both to increase bandwidth and possibly add VOIP. However, a lot of this is assuming that we can just use pop the existing fiber into 10gig XFP transceivers in better switches and call it a day. If the fiber works fine at 1G does that mean it should be fine for 10gig? If not, how can we confirm that our existing fiber trunks will work, preferably in an affordable fashion?

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• Linux and Windows Server Setup

  - by Brian

  Hello, I have an win 2008 R2 machine (a home machine of mine) that I am messing around with and learning the server technologies. I also wanted to try out oracle, and was wondering if its possible to setup a LINUX machine with Oracle, and have the two interoperate. What I mean by that is if I setup the server and my laptop on a domain, would it be possible to communicate to that LINUX machine and thus the Oracle database, and if so, are there any good resources on the setup? I was going to create a LINUX hyper v virtual... Any tips appreciated. Thanks.

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• Snow Leopard and NAS share

  - by Andreas

  Hi, I bought a BlackArmor 220 from Seagate. When I start Snow Leopard the NAS shows up with its full name under shares. The problem is that when I click the NAS only a folder BA_Backup shows up, all the other folders, I created, don't. When I click the NAS, it says I'm connected as "guest". I mean I can connect by "Go to server" and additionally add the folders to the user startup objects, so they show up when I start my Mac, but when the NAS already shows up, why can't I configure it? Where can I change this? Thanks! Cheers, Andi

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• Windows 7 USB power lose after a few seconds / minutes

  - by Stefan Dunn

  My friend's computer has a problem where the USB ports causes problems with the power of some devices connected to the computer. The USB mouse has no problems, however the Wireless Adapter looses power after around 20 seconds of use and USB Flash Drives cause the computer to either freeze, lose power (and become unresponsive) or become disconnected (still shown in Device Manager, but not in My Computer) when trying to transfer any type of file to / from the computer. I have a suspicion it's the Motherboard but could it also be a Software problem? Tried a new case, RAM, CPU and GFX Card which had no effect. The problem occurs on both the Front USB and Back (Motherboard) USB Ports. UPDATE: Tried the USB devices with an Ubuntu Live CD and they work fine, could this mean it's a problem with Windows (x64)?

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• how can I stop my sonicwall TZ-210 (SonicOS Enhanced 5.5.1.0-5o) from responding to arp queries on the wan subnet?

  - by IsaacB

  My sonicwall TZ-210 is answering arp queries on the wan subnet (which my isp doesn't like), basically mapping all the wan ips to its own mac address, causing network havoc since it is not set to route those back to the main isp gateway. How the heck can I turn this behavior off? I have already entered in all wan subnet ips in the static arp cache and left them 'unpublished' which I presumed would mean that it did not bother answering arp queries for them. Apparently it did not do the trick. Arp queries are still being answered unfortunately. What can I do? Any suggestions?

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• Windows Server Backup - Can I restore to a particular revision?

  - by hamlin11

  I'm using Windows Server Backup in Windows Server 2008 to do a scheduled daily backup to a dedicated hard-drive on the server. I noticed that under "All backups" it says I have 45 copies. Does this mean that I can restore to any revision of my data upon system failure? If the answer is yes, then I don't have to worry about taking monthly or weekly snapshots of my data. I'm concerned about a data corruption event occurring that working its way into my backups... then not having a clean snapshot to go back to. Thanks!

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• One-way forest trust between geographically distributed forests using Server 2008 R2

  - by bwerks

  Hi all, I'm planning out a joinder between two domains, as would take place with contracting companies. Forests A and B exist in distant sites, and there is to be a one-way forest trust so that domain users in Forest A can be authenticated on machines in Forest B. In order to facilitate this, each forest's domain controller must be able to contact each other in order to set up & confirm the trust, but my question is what underlying networking magic must take place beneath it. So far the prevailing approach has been to maintain a VPN connection between the two sites, but the technet documentation seems to indicate that DNS forwarding may be the way to go. Is this the case? Furthermore, if DNS will suffice, does that mean that there must be a server running DNS on boundary servers in each domain so that they can be reached from across the internet? How must they be configured? Thanks!

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• Changing Network Path of Offline Files

  - by Adam

  Many of our users have their Home folder set as Available Offline. Their Windows 7 laptops will not be back on our network for a few weeks. In the mean time, we're setting up new servers and reorganizing our files, so the network path to the Home folder is going to be completely different. Based on some testing I did, when the users return, any files they've created or modified while offline will be gone, and the new Home folder will be there and not set to sync. The offline cache of the old Home folder is still accessible through the Sync Center, but they're not going to want to dig through that and try to find what's missing. Avoiding this would involve keeping the old server around and moving everyone to the new location in person, so we know for sure they're synced first. Is there any way to avoid this that isn't as tedious, like a quick registry edit or something that will point the old offline cache to the new location?

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• Big IP F5 outbound HTTP issues

  - by mbuk2k

  We've tried upgrading from 9.x to 10.2 on our F5 Big IP 3400 and everything went over fine apart from one thing. We're unable to establish any outbound HTTP (80) connections from any servers that are assigned to a virtual server. This is something that worked before and is required for certain calls our servers need to make. Interestingly HTTPS (443) connections work fine, it's literally just anything outbound over port 80 seems to fail. Does anyone know if anything has changed between 9.4 and 10.2 that would mean additional config would need to be made to allow for external HTTP connections? Any advice would be appreciated, thank you

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• Config file (App.config) does not update on new installation

  - by Muhammad Kashif Nadeem

  I am creating setup of my project using Visula Studio 2008. I am facing problem in setup installation. If I uninstall old setup (application) and install the new one then config file (App.config) updates the attributes (surely it is new file) of config file but if I install new setup without uninstalling the old one then config file does not update. from config file I mean MyProject.exe.config Why is this behavior of config file. Should it not be updated on installation of the new setup Is this possible to delete and copy the config file of new setup? Is there a way to update only config file forcefully during installation. Thanks for your help!

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• media player or dj software

  - by Dale

  Been searching for quite some time for a player that will cross fade correctly. What I mean by that, most players have the ability to start fading with a given time left of the song (ex:10 secs) While at times that can be fine, but is there software or a plugin for software that can tell the difference between a song that fades out, or a song that has a cold ending? So far the best one out there that I have tested is PCDJ, but I am sure there has to be something that can distinguish between endings of songs. Should add...this is for windows. Running vista Thanks in advance

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• Getting jerky backgrounds on Win7 on iMac 27'' 2560x1440

  - by JohnIdol

  I installed Win7 on bootcamp on my new iMac 27'' (ATI videocard) and everything was good until recently I noticed that the default win7 background (then one on the background on login) looked jerky. When I say jerky I mean the kind of jerky you get if you can't display enough colours, and instead of nice fading shades you just get stripes and jerky patterns. I am on native resolution but even if I go down to 1920x1080 I get the same. This might have happened after a firmware update but as I don't use windows very often I am not too sure it's what caused it. Oh, and when I am playing games everything looks OK (as in not jerky!). Any help appreciated!

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• Command line safety tricks

  - by deadprogrammer

  Command line and scripting is dangerous. Make a little typo with rm -rf and you are in a world of hurt. Confuse prod with stage in the name of the database while running an import script and you are boned (if they are on the same server, which is not good, but happens). Same for noticing too late that the server name where you sshed is not what you thought it was after funning some commands. You have to respect the Hole Hawg. I have a few little rituals before running risky commands - like doing a triple take check of the server I'm on. Here's an interesting article on rm safety. What little rituals, tools and tricks keeps you safe on the command line? And I mean objective things, like "first run ls foo*, look at the output of that and then substitute ls with rm -rf to avoid running rm -rf foo * or something like that", not "make sure you know what the command will do".

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