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• What's the downsides of Running Ubuntu 9.10 32bit on AMD64 Processor

  - by Omar Dolaimy

  Hi, I was thinking about installing Ubuntu 9.10 32bit on a DELL Inspiron 1501 with 64bit processor Laptop. Since It's was real pain to me to run Java Browser plugin, Flash Plugin, J2ME Toolkit, and many other tools. But It was 90% OK with me. This was Ubuntu 8.10 (a year ago), And now the Ubuntu 9.10 came and I'm thinking about installing the 32 bit on it and get rid of the pain. Is there a downside for that?? considering that the display card is not supported now so exclude this from your calculation, I will never play REAL games on it and I'm not a big fan of Compiz effects. I'm not here to ask about the performance (which is about 15%+ for the 64bit only), I just want compatibility!

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• Do you have any additions or alterations to this list of popular audio formats?

  - by roja

  All, I am trying to compile a list of common audio file formats used in both personal storage and peer transmission. I have compiled the following list, do you think that there are any significant formats missing? Are any of them not actually common formats? Any advice/alterations are highly useful. advanced audio coding, apple lossless audio file, atrac3 audio file, atrac audio file, audio interchange file format, core audio file, free lossless audio codec file, mpeg 1 audio layer 3, mpeg 2 audio, mpeg 4 audio book file, musical instrument digital interface, ogg vorbis compressed audio file, open media framework file, real audio, real audio media, waveform audio file format, windows media audio Kind regards, Roja

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• Apache proxy is modifying the HTTP status code

  - by jarnbjo

  I am using Apache as a proxy frontend for a Java web application, which is deployed on WebSphere. The web application is using custom status codes (55x) to signal specific errors to the clients. When accessing the web application directly through the WebSphere HTTP listener, everything works as expected, but when these requests are proxied through an Apache load balancer, the status codes are modified by Apache and replaced with a generic 500 error code (internal server error). In Apache's access.log, the correct status code is logged: <IP> - - [11/Nov/2011:17:24:53 +0100] "POST <URL> HTTP/1.1" 551 36 But the actual response received by the client starts like this (logged with tcpdump): HTTP/1.1 500 Internal Server Error ... Followed by the real status code in the response content: ... Error 551: Berichteter Fehler: 551 ... Is there an obvious reason for this behaviour or does someone have a suggestion on how to modify the Apache configuration to forward the "real" status code instead of 500?

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• Disk Response Time in Windows 7 Resource Monitor?

  - by Keith Nicholas

  In the resource monitor I'am looking at the disk response time. There are a lot of processes where the response time is thousands of milliseconds consistently, I'm pretty sure this is the source of my computer slowing down. I'm not sure what normal response times are though? I'm running win 7 64bit ultimate. This is running on a new computer, i5 with a terabyte drive, 4gigs of ram, etc, disk is still pretty much empty, so it should all be pretty snappy. And if it is going really slow, how do I track down whats causing it? I've turned off things like real time virus protection as experiments to see if there is something weird there, but makes no real difference (other than it doesn't contribute to the problem by accessing the disk)

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• Anyone tried dd'ing Raidmembers?

  - by DusteD

  I want replace all disks in a 10 disk raid6 (linux software raid). I could do this by pulling a disk, let the array rebuild, rinse, repeat. But this would take a very long time, and cause 10 rebuilds, which would most likely stress all 10 disks much more than simply reading each disk through once. My question is thus: Could I just shut down the array, and dd each old disk to a new disk and then start the array with the 10 new disks? In an ideal world, I would build another server and just copy the data via network, but this is not an ideal world.

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• Keyboard mapping issue in Virtualbox on Mac OS

  - by stanleyxu2005

  I run Windows 7 as a VM in VirtualBox on my MacBook Air (using OS X 10.7). If I do not shutdown the VM but save its machine state. The keyboard will behave strangely after resuming. It seems the Windows Logo key is always hold. When I type the key 'u', the Control Panel will be shown. I tested on a real Windows 7, the same dialog will be shown when I press Win-key and 'u'. When I type the key 'e', the Explorer will show up, some as press Win-key and 'e' on a real Windows 7. If I click 'Restart' from the Start menu of Windows 7, after restarting the VM, the keyboard works again. I think there are some conflicts with keyboard driver in VM. It is quite annoying, usually I usually close a VM by saving its machine state, not shut the OS down. Is there any way to solve this problem?

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• Linux urldecode filename

  - by Flavius

  Hi Is there any tool to urldecode a file's name and replace it? Example: $ ls hello%20world.txt $ urldecode *.txt $ ls hello world.txt

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• Virus - Isn' t there any online solution ?

  - by Sarang

  In our daily life, we come across various Viruses. In this internet world, we do have lots of type of viruses come to visit us ! A programmer can create a Virus using programming & it can be put on internet. It flows across the world & harm all the system. Don't do we have a same way to run an Anti-virus that flows across the internet & can protect the network from being affected by Viruses ? Please give any Idea...

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• Windows 7 - sharing file - slow seek time?

  - by progtick

  I do not want to copy the files. I simply have video files (.flv) on one computer and I would like another computer user to watch them without copying. Playback is fine, but seek time (as in if you move the cursor to skip some portion of the video) takes forever! I thought wireless speed might be the culprit, so I wired the two computer. Maybe I saw some improvement but still so bad. It's 1 Gbps! (I know real speed will vary, but before I monitor real speed and such, do I have reasonable issue? Or am I bound to have very slow seek time?) What is going on? I must mention some of these files are huge!

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• Right Clicking Network File Very Slow Over VPN

  - by Reafidy

  I am having real troubles with a VPN connection. The VPN connection is not used for a internet connection just for file browsing. File browsing is slow, taking about 3-4 seconds to bring up a list of folders. I can live with this, however the problem is when I right click on a file. Sometimes the right click menu comes up instantly but sometimes it brings up the wait icon for anywhere between 30 seconds to a few minutes before displaying the menu. I ran speedtest.net and the results were: 3.08 Down/0.13 Up (Mbps) 0.13Mbps = 16kbps upload. So I am not experiencing miracles with opening files. A 120kb file can take anywhere from 5 to 30 seconds. Sometimes transfering/opening files happens as expected other times its slow but the real issue is with the right click as mentioned. Anyone have any ideas? Using PPTP Clients are all windows 7 pro

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• How to add an account to Entourage that's only a mail forward?

  - by Robot

  I have two email accounts, one is my main account, and the other just forwards to the main. I'd like to select either address from the From: dropdown list, but I think the forward would need to be formal Entourage account for that to work. If I add the forward acct, it insists on trying to login, even though there is no real mailbox for it... it's just a forward. This happens even if I don't check the "Include this account in my Send & Receive All Schedule" checkbox. Is there any way to prevent login attempts, or to add From: addresses without adding them as real mailbox accounts? -Robot

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• Block p2p downloading in my office?

  - by Andrew

  I work in an education office in a third world country. We pay for internet by the megabyte (no other choice) and have lately been using an incredible amount of bandwidth. This is because the office staff have found out about p2p sharing. As far as I know, Limewire is the only program they're using, but I'm sure it's just a matter of time before they discover the more general world of bittorrent. Using only a linksys router (that I could flash), is there any way for me prevent the office from destroying our bandwidth cap by downloading personal items (against policy). Even semi-fixes would be better than nothing.

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• How to copy a cell's formatting using a formula?

  - by Alvin Lim

  For example, cell A1 contains the text "Hello World" which is in bold. In cell A2, I use the formula =A1. Therefore cell A2 now also contains "Hello World", but it is not in bold. How can I modify the formula to also copy the formatting (in this case, bold) of A1? A more complex example is strikethrough properties, i.e. A1 contains "Orange/Red". How do I show the same content in cell A2 dynamically, so that any changes made in A1 will update A2 as well?

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• Firewall configuration [closed]

  - by yogsma

  So I have a router as facing to the outside world. I have 3 application servers and a database server. All these servers are behind router. Now we are trying to configure the firewall between outside world and router. All servers use Redhat linux. What all precautions , steps I have to carry so that firewall configuration won't create any issue when we restart our application? It would be nice if experienced users help in this case.

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• Weird console problem in linux, usually right before OOM

  - by Kevin Quinn

  So I've noticed this happen more than once. If I remember correctly, this usually happens right before OOM, and/or kernel panic that if you type into a tty and then try to backspace it, the same characters are printed back in reverse. This has been merely an interesting oddity to me in the past, but it happened again recently, and I've gotten more curious about what's actually causing that. (Is it sending the characters back to STD_OUT or something?) Does anyone have any idea? I have a feeling the answer will be interesting. Just so I'm clear, if you typed hello world, then tried to backspace it: hello world..dlrow olleh

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• Why do some games randomly turn my screen a random solid color?

  - by Emlena.PhD

  When playing some games my computer will randomly have an error that I cannot fix without turning it off and back on again. The screen changes to one solid color, which varies (off the top of my head I can remember seeing solid green, magenta, etc..) and the sound blares a single tone. The sound sometimes briefly restores and I can still hear the game sounds and even hear and still be heard by people in my Mumble channel, but the screen doesn't right itself so I'm still blind. What's more is this happens in some games but not in others. While the game is actually running, not while I'm still in the menu. However, it does happen if I'm afk or idle but the game world is still rendering. Games where the error occurs: League of Legends World of Warcraft Trine The Sims 2 Dungeon Defenders Safe games: games where it has never occurred: Tribes: Ascend Star Wars: the Old Republic Battlefield 3 So relatively older games cause the problem while newer games do not? I cannot predict when it will happen, it just seems random. However, if it happens and I try playing the same game further after restart it does appear to occur more frequently after the first time. But if I switch to a safe game it doesn't continue happening. Both of my RAM sticks appear fine, flipped position or either one on their own and games still run, computer still boots. I would think over-heating, but then why not all games? ALso, sometimes it happens immediately after I start playing, within seconds of the 3D world booting up. I'm looking to upgrade very soon so I want to figure out what component or software is fubar and replace/repair it. Any suggestions or recommendations of tools would be helpful. Below is some system information. Dxdiag does not detect any problems. Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120305-1505) System Manufacturer: Gigabyte Technology Co., Ltd. System Model: EP45-UD3R BIOS: Award Modular BIOS v6.00PG Processor: Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz (2 CPUs), ~3.2GHz Memory: 4096MB RAM DirectX Version: DirectX 11 DxDiag Version: 6.01.7601.17514 64bit Unicode Graphics card name: NVIDIA GeForce GTX 285 Driver Version: 8.17.12.9610 (error has occurred w/several driver versions) Sound: I do not have a sound card, been using motherboard's built in sound)

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• Iptables based router inside KVM virtual machine

  - by Anton

  I have KVM virtual machine (CentOS 6.2 x64), it has 2 NIC: eth0 - real external IP 1.2.3.4 (simplified example instead of real one) eth1 - local internal IP 172.16.0.1 Now I'm trying to make port mapping 1.2.3.4:80 = 172.16.0.2:80 Current iptables rules: # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *nat :OUTPUT ACCEPT [0:0] :PREROUTING ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -o eth0 -j MASQUERADE -A PREROUTING -p tcp -m tcp -d 1.2.3.4 --dport 80 -j DNAT --to-destination 172.16.0.2:80 COMMIT # Completed on Fri Jun 29 17:53:36 2012 # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *mangle :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] COMMIT # Completed on Fri Jun 29 17:53:36 2012 # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] COMMIT # Completed on Fri Jun 29 17:53:36 2012 But there is nothing works, I mean it does not forwards that port. Similar configuration without virtualization seems to be working. What am I missing? Thanks!

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• When did Apple stop using the name "Macintosh" in favor of "Mac", and does anyone know why?

  - by schnapple

  As of a few months ago I finally joined the ranks of Macintosh owners. Except "Macintosh" doesn't seem to exist anymore for some reason. I noticed everything was "Mac", i.e. Mac OS X, MacBook, Mac mini, Mac Pro, etc. I didn't pay a whole lot of attention, but I always thought everyone was using shorthand. I mean "MacBook" is the real name of the computer, as is "iMac", but I always thought when people said "Mac Pro" they were just shortening the real name, "Macintosh Pro". And yet now when you go to the Apple site, a search for "Macintosh" turns up several instances of the name being used on various things (system requirements for old versions of QuickTime, the occasional piece of software with "for the Macintosh" in the name) but nothing from the main Mac pages. Near as I can tell they're really no longer called "Macintoshes" they're just "Macs" When did this happen, and does anyone know why Apple ditched the term "Macintosh"?

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• A "region code" restriction for a custom created video dvd file

  - by user180820

  I want to create a video dvd ( no menus, just "plug and play" ) from a few video files. I`m doing it like this: ffmpeg -i sample-media/hellboy-2.wmv -y -target ntsc-dvd sample-media-to-mpeg/hellboy-2.vob dvdauthor -o sample-dvd -x dvdauthor-settings.xml mkisofs -dvd-video -o hellboy-2-trailers.iso sample-dvd/ where "dvdauthor-settings.xml" is: link. But when I try to play the iso file in windows it says: Windows Media Player cannot play the DVD because the disc prohibits playback in your region of the world. You must obtain a disc that is intended for your geographic region. When I open the *.IFO file with IfoEdit it says that all world regions are unabled. Can someone tell me why is this happening? ( maybe the whole process of creating the *.iso file is wrong? )

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• Cloud services, Public IPs and SIP

  - by Guido N

  I'm trying to run a custom SIP software (which uses JAIN SIP 1.2) on a cloud box. What I'd really like is to have a real public IP aka which is listed by "ifconfig -a" command. This is because atm I don't want to write additional SIP code / add a SIP proxy in order to manage private IP addresses / address translation. I gave Amazon EC2 a go, but as reported here http://stackoverflow.com/questions/10013549/sip-and-ec2-elastic-ips it's not fit for purpose (they do a 1:1 NAT translation between the private IP of the box and its Elastic IP). Does anyone know of a cloud service that provides real static public IP addresses?

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• Can't start mysql server in xubuntu

  - by codeomnitrix

  Hey all i am using Xampp version 1.7.1 in xubuntu 10.10. I have installed it in /opt/lampp but problem is that whenever i try to start the server using sudo ./lampp start it shows: Starting XAMPP for Linux 1.7.1... XAMPP: Starting Apache with SSL (and PHP5)... XAMPP: Starting MySQL... Warning: World-writable config file '/opt/lampp/etc/my.cnf' is ignored Warning: World-writable config file '/opt/lampp/etc/my.cnf' is ignored XAMPP: Starting ProFTPD... XAMPP for Linux started. So what should i do?? Thanks in advance.

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• How to forward blocked ports by ISP

  - by KiDo

  So I've been trying to setup a TeamSpeak 3 server on my pc but ports (9987,10011,30033) are blocked by my ISP, I've contacted them to unblock them but they didn't accept, and it's the fastest ISP in my city (as living in a 3rd world country) so it's not a good idea to connect to another ISP. The thing is, I've tried Your-Freedom to connect to tunnel my connection & SocksCap. The problem is, when TS works with SocksCap it doesn't show a WAN-IP that friends will use to connect to my server It says "Needs to be Requested" and when I press the Request button, I get nothing. So, any idea what's wrong if someone has done this before? or if you have any other suggestion to run a TS server, would be very glad to hear it and really appreciate that. P.S. as I've mentioned before, living in a 3rd world country, makes me unable to buy a VPS even the cheapest one cause there's no Visa, Credit, or paypal. so that won't work. Thanks in advance.

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• Out of nowhere, ssh_exchange_identification: Connection closed by remote hot me too

  - by dgerman

  See similar: Out of nowhere, ssh_exchange_identification: Connection closed by remote host Today, 6/19/12 attempting to ssh to the same host as usual ssh replied ssh_exchange_identification: Connection closed by remote host two additional attempts failed ssh -v $RWS OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug1: Connecting to Real-World-Systems.com [174.127.119.33] port 22. debug1: Connection established. debug1: identity file /Users/dgerman/.ssh/id_rsa type 1 debug1: identity file /Users/dgerman/.ssh/id_rsa-cert type -1 debug1: identity file /Users/dgerman/.ssh/id_dsa type -1 debug1: identity file /Users/dgerman/.ssh/id_dsa-cert type -1 ssh_exchange_identification: Connection closed by remote host ping host was successful, ftp host was successful, ssh now successful, ssh -v $RWS OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug1: Connecting to Real-World-Systems.com [174.127.119.33] port 22. debug1: Connection established. debug1: identity file /Users/dgerman/.ssh/id_rsa type 1 debug1: identity file /Users/dgerman/.ssh/id_rsa-cert type -1 debug1: identity file /Users/dgerman/.ssh/id_dsa type -1 debug1: identity file /Users/dgerman/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3 debug1: match: OpenSSH_4.3 pat OpenSSH_4* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.6 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'real-world-systems.com' is known and matches the RSA host key. debug1: Found key in /Users/dgerman/.ssh/known_hosts:5 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: publickey debug1: Offering RSA public key: /Users/dgerman/.ssh/id_rsa debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Trying private key: /Users/dgerman/.ssh/id_dsa debug1: Next authentication method: password ++++ What gives?? +++++++++++ Mac OS X 10.4.7 , OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011, /Users/dgerman/.ssh > ls -la total 24 drwx------ 7 dgerman staff 238 Jun 19 15:46 . drwxr-xr-x 389 dgerman staff 13226 Jun 19 15:46 .. -rw------- 1 dgerman staff 1766 Feb 26 18:25 id_rsa -rw-r--r-- 1 dgerman staff 400 Feb 26 18:25 id_rsa.pub -rw-r--r-- 1 dgerman staff 67 Feb 26 18:27 keyfingerprint -rw-r--r-- 1 dgerman staff 6215 May 1 08:11 known_hosts -rw-r--r-- 1 dgerman staff 220 Feb 26 18:26 randomart

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• How do I set zone priority in Microsoft DNS?

  - by Justin

  I have a standard small network setup (20 users) on Active Directory. All Windows machines have a primary DNS server as the AD and a secondary DNS server as Google PDNS. I want to setup a DNS entry that exists in real DNS but set it up on our DC so that local requests would route this public domain to a local development machine on the network. I setup the zone in DNS which results in the clients resolving the public FQDN to our internal IP. However, sometimes it still resolves to the "real" value (I check by pinging it). Is there some way to give the zone definition in my DC DNS higher priority? Or will the client that has secondary public DNS always at sometimes have a competing entry for this zone?

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• Keep source IP after NAT

  - by John Miller

  Until today I used a cheapy router so I can share my internet connection and keep a webserver online too, while using NAT. Users IP ($_SERVER['REMOTE_ADDR']) was fine, I was seeing class A IPs of users. But as traffic grown up everyday, I had to install a Linux Server (Debian) to share my Internet Connection, because my old router couldn't keep the traffic anymore. I shared the internet via IPTABLES using NAT, but now, after forwarding port 80 to my webserver, now instead of seeing real users IP, I see my Gateway IP (Linux Internal IP) as any user IP Address. How to solve this issue? I edited my post, so I can paste the rules I'm currently using. #!/bin/sh #I made a script to set the rules #I flush everything here. iptables --flush iptables --table nat --flush iptables --delete-chain iptables --table nat --delete-chain iptables -F iptables -X # I drop everything as a general rule, but this is disabled under testing # iptables -P INPUT DROP # iptables -P OUTPUT DROP # these are the loopback rules iptables -A INPUT -i lo -j ACCEPT iptables -A OUTPUT -o lo -j ACCEPT # here I set the SSH port rules, so I can connect to my server iptables -A INPUT -p tcp --sport 513:65535 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp --sport 22 --dport 513:65535 -m state --state ESTABLISHED -j ACCEPT # These are the forwards for 80 port iptables -t nat -A PREROUTING -p tcp -s 0/0 -d xx.xx.xx.xx --dport 80 -j DNAT --to 192.168.42.3:80 iptables -t nat -A POSTROUTING -o eth0 -d xx.xx.xx.xx -j SNAT --to-source 192.168.42.3 iptables -A FORWARD -p tcp -s 192.168.42.3 --sport 80 -j ACCEPT # These are the forwards for bind/dns iptables -t nat -A PREROUTING -p udp -s 0/0 -d xx.xx.xx.xx --dport 53 -j DNAT --to 192.168.42.3:53 iptables -t nat -A POSTROUTING -o eth0 -d xx.xx.xx.xx -j SNAT --to-source 192.168.42.3 iptables -A FORWARD -p udp -s 192.168.42.3 --sport 53 -j ACCEPT # And these are the rules so I can share my internet connection iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -A FORWARD -i eth0:1 -j ACCEPT If I delete the MASQUERADE part, I see my real IP while echoing it with PHP, but I don't have internet. How to do, to have internet and see my real IP while ports are forwarded too? ** xx.xx.xx.xx - is my public IP. I hid it for security reasons.

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