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• game multiplayer service development

  - by nomad

  I'm currently working on a multiplayer game. I've looked at a number of multiplayer services(player.io, playphone, gamespy, and others) but nothing really hits the mark. They are missing features, lack platform support or cost too much. What I'm looking for is a simple poor man's version of steam or xbox live. Not the game marketplace side of those two but the multiplayer services. User accounts, profiles, presence info, friends, game stats, invites, on/offline messaging. Basically I'm looking for a unified multiplayer platform for all my games across devices. Since I can't find what I'm planning to roll my own piece by piece. I plan to save on server resources by making most of the communication p2p. Things like game data and voice chat can be handled between peers and the server keeps track of user presence and only send updates when needed or requested. I know this runs the risk of cheating but that isn't a concern right now. I plan to run this on a Amazon ec2 micro server for development then move to a small to large instance when finished. I figure user accounts would be the simplest to start with. Users can create accounts online or using in game dialog, login/out, change profile info. The user can access this info online or in game. I will need user authentication and secure communication between server and client. I figure all info will be stored in a database but I dont know how it can be stored securely and accessed from webserver and game services. I would appreciate and links to tutorials, info or advice anyone could provide to get me started. Any programming language is fine but I plan to use c# on the server and c/c++ on devices. I would like to get started right away but I'm in no hurry to get it finished just yet. If you know of a service that already fits my requirements please let me know.

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• How to protect a peer-to-peer network from inappropriate content?

  - by Mike

  I’m developing a simple peer-to-peer app in .Net which should enable users to share specific content (text and picture files). As I've learned with my last question, inappropriate content can “relatively” easily be identified / controlled in a centralized environment. But what about a peer-to-peer network, what are the best methods to protect a decentralized system from unwanted (illegal) content? At the moment I only see the following two methods: A protocol (a set of rules) defines what kind of data (e.g. only .txt and jpg-files, not bigger than 20KB etc.) can be shared over the p2p-network and all clients (peers) must implement this protocol. If a peer doesn’t, it gets blocked by other peers. Pro: easy to implement. Con: It’s not possible to define the perfect protocol (I think eMail-Spam filters have the same problem) Some kind of rating/reputation system must be implemented (similar to stackoverflow), so “bad guys” and inappropriate content can be identified / blocked by other users. Pro: Would be very accurate. Con: Would be slow and in my view technically very hard to implement. Are there other/better solutions? Any answer or comment is highly appreciated.

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• Productivity vs Security [closed]

  - by nerijus

  Really do not know is this right place to ask such a questions. But it is about programming in a different light. So, currently contracting with company witch pretends to be big corporation. Everyone is so important that all small issues like developers are ignored. Give you a sample: company VPN is configured so that if you have VPN then HTTP traffic is banned. Bearing this in mind can you imagine my workflow: Morning. Ok time to get latest source. Ups, no VPN. Let’s connect. Click-click. 3 sec. wait time. Ok getting source. Do I have emails? Ups. VPN is on, can’t check my emails. Need to wait for source to come up. Finally here it is! Ok Click-click VPN is gone. What is in my email. Someone reported a bug. Good, let’s track it down. It is in TFS already. Oh, dam, I need VPN. Click-click. Ok, there is description. Yea, I have seen this issue in stachoverflow.com. Let’s go there. Ups, no internet. Click-click. No internet. What? IPconfig… DHCP server kicked me out. Dam. Renew ip. 1..2..3. Ok internet is back. Google: site: stachoverflow.com 3 min. I have solution. Great I love stackoverflow.com. Don’t want to remember days where there was no stackoveflow.com. Ok. Copy paste this like to studio. Dam, studio is stalled, can’t reach files on TFS. Click-click. VPN is back. Get source out, paste my code. Grand. Let’s see what other comments about an issue in stackoverflow.com tells. Hmm.. There is a link. Click. Dammit! No internet. Click-click. No internet. DHCP kicked me out. Dammit. Now it is even worse: this happens 3-4 times a day. After certain amount of VPN connections open\closed my internet goes down solid. Only way to get internet back is reboot. All my browser tabs/SQL windows/studio will be gone. This happened just now when I am typing this. Back to issue I am solving right now: I am getting frustrated - I do not care about better solution for this issue. Let’s do it somehow and forget. This Click-click barrier between internet and TFS kills me… Sounds familiar? You could say there are VPN settings to change. No! This is company laptop, not allowed to do changes. I am very very lucky to have admin privileges on my machine. Most of developers don’t. So just learned to live with this frustration. It takes away 40-60 minutes daily. Tried to email company support, admins. They are too important ant too busy with something that just ignored my little man’s problem. Politely ignored. Question is: Is this normal in corporate world? (Have been in States, Canada, Germany. Never seen this.)

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• How to make ad-hoc network connection?

  - by Johan Nathaniel Soedjono

  I can't make ad-hoc from my netbook (Ubuntu 12.04). It has internet source from ethernet. I have tried making from network manager. But it always says 'Wireless Network Disconnected' and can't be detected by neither my other laptop nor my cell phone which have wifi. How can I make adhoc from it? I have already tried making a connection in Network Manager a lot of times, but it still can't connect and appear notification 'Wireless Network Disconnected'.

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• How to share internet connection and making the client accessible over the lan

  - by Dario Silva Moran

  I've a Pc with Ubuntu 14.04 connected to a linkys router through wlan0, and I'd like to share internet connection to an AVR with ethernet port. This is pretty simple if only internet connection is required for the AVR: actually, creating an ethernet connection as "Shared with other computers" and setting up the AVR IP configuration to use DHCP works just fine, but that makes a private class A lan between those two; of course ip addresses are not in the range of the LAN the router is managing. So, I tried with static ip on both sides (Ubuntu eth0 and AVR ip). Tried many combinations, none of them work to provide Internet access to the AVR and at the same time make the AVR accessible over the network through his static ip address (say, 192.168.0.110). Any tips around to share??

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• DSL modem problem in 11.10

  - by Misterious

  Earlier I used Windows 7 and the modem used to work absolutely fine. Even when it got disconnected it used to reconnect automatically without any trouble. But then I installed Ubuntu 11.10 on dual-boot and set up the modem connection properly but the modem now disconnects much more frequently (earlier it disconnected once in 5 hours or so and after Ubuntu in 5 minutes!). Also once disconnected, it does not reconnect even when I have checked the "Connect Automatically" button. I have to restart the system to reconnect it. I the clean installed Windows and modem works perfectly fine again. What is the reason for this and how can I solve this? I really want to use Ubuntu but due to this problem I can't.

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• How to implement lockstep model for RTS game?

  - by user11177

  In my effort to learn programming I'm trying to make a small RTS style game. I've googled and read a lot of articles and gamedev q&a's on the topic of lockstep synchronization in multiplayer RTS games, but am still having trouble wrapping my head around how to implement it in my own game. I currently have a simple server/client system. For example if player1 selects a unit and gives the command to move it, the client sends the command [move, unit, coordinates] to the server, the server runs the pathfinding function and sends [move, unit, path] to all clients which then moves the unit and run animations. So far so good, but not synchronized for clients with latency or lower/higher FPS. How can I turn this into a true lockstep system? Is the right methodology supposed to be something like the following, using the example from above: Turn 1 start gather command inputs from player1 send to the server turn number and commands end turn, increment turn number The server receives the commands, runs pathfinding and sends the paths to all clients. Next turn receive paths from server, as well as confirmation that all clients completed previous turn, otherwise pause and wait for that confirmation move units gather new inputs end turn Is that the gist of it? Should perhaps pathfinding and other game logic be done client side instead of on the server, if so why? Is there anything else I'm missing? I hope someone can break down the concept, so I understand it better.

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• Atheros AR8132 Ethernet refuses to connect after suspend

  - by Ramesh Patel

  I'm having an issue where my ethernet card (Atheros Communications Inc. AR8132 Fast Ethernet (rev c0)) refuses to recognize when a network cable is plugged in after a suspend. This is dmesg after suspending: [135897.712049] atl1c 0000:02:00.0: MAC state machine can't be idle since disabled for 10ms second [135897.743729] ADDRCONF(NETDEV_UP): eth0: link is not ready [135898.541804] ADDRCONF(NETDEV_UP): eth1: link is not ready [135900.452077] atl1c 0000:02:00.0: irq 47 for MSI/MSI-X [135900.672262] atl1c 0000:02:00.0: Error get phy ID [135900.673060] ADDRCONF(NETDEV_UP): eth0: link is not ready [135900.674140] ADDRCONF(NETDEV_UP): eth0: link is not ready [135925.604052] [135935.776051] eth1: no IPv6 routers present eth0 is the ethernet card and eth1 is the wlan card (Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01)). The ethernet card uses the atl1c driver and the wlan card uses the wl driver. Sorry, should have mentioned as well, running Ubuntu 12.04 with kernel 3.2.0-25-generic.

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• Advice for programming a lobby for a network multiplayer game?

  - by Milo

  I'm working on learning network programming. I'm working on a simple card game. The basic idea is: Players enter the lobby Players see tables Players sit at an empty seat Once they sit, they do not need any information from the lobby, they see the card table and the data about the other players and so forth. I've programmed the server portion for the game itself. The clients connect to my server object and the server then receives and sends messages; quite simple. The tricky concepts for me are: What's a good way to run many tables at the same time? What's a good way to keep the lobby consistently updated for each person in the lobby (eg: MSG_TABLE_FILLED, 22) Ideally I'd like to have 1 server exe for all of this and to have to deal with multithreading as little as possible. I'm going to use the enet library. I was thinking that each time a game session starts, I push a new Game and I map the client IPs to that table, then I just route messages from those clients to that Game. Since enet supports channels I was thinking of using 2 channels per table, one for the game messages and one for in game chat. Would something like this work? Does anyone have any advice / design ideas for a game with a lobby and many tables? Is there a usual way this is done that I'm overlooking? Any conceptual ideas or even c/c++ code examples would be very helpful. Thanks

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• Network really slow with TL-WN951N wireless card

  - by Sam

  I literally just installed ubuntu and it seems to be working great except the network is deadly slow. I'm running a TL-WN951N wireless card which can download at about 600-700 KB/s in windows but in Ubuntu the max speed it seems to get is around 5KB/s. I guess I should note that my WAP is only wireless-G but like I said, I can get much better speeds in Windows. I'm testing the speeds by downloading files from here: http://mirror.internode.on.net/pub/test/ Anyone have any idea? I saw some people recommend downloading drivers and compiling them myself but I'm really really new to all of this so would appreciate someone babying me through it so I don't brick my computer! Here are the results of lspci -v: 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02) Subsystem: Giga-byte Technology GA-EP45-DS5 Motherboard Flags: bus master, fast devsel, latency 0, IRQ 44 I/O ports at c000 [size=256] Memory at e9110000 (64-bit, prefetchable) [size=4K] Memory at e9100000 (64-bit, prefetchable) [size=64K] [virtual] Expansion ROM at e9120000 [disabled] [size=64K] Capabilities: <access denied> Kernel driver in use: r8169 Kernel modules: r8169 05:02.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01) Subsystem: Atheros Communications Inc. Device 3071 Flags: bus master, 66MHz, medium devsel, latency 168, IRQ 18 Memory at e9200000 (32-bit, non-prefetchable) [size=64K] Capabilities: <access denied> Kernel driver in use: ath9k Kernel modules: ath9k

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• Resetting network adapter?

  - by Quixo

  I'm running Ubuntu 12.04. I get a strong wireless signal throughout my house, and the wireless symbol in the upper-right-hand corner shows that it's connected. The problem is, occasionally I am unable to access the internet (still having a strong symbol). This happened with Windows 7, too, but running the network troubleshooter fixed it each time. It claimed to be "resetting the network adapter". So, what I need to know is: How do I replicate that process on Ubuntu? Thanks for your help!

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• How to send packets via a pptp vpn tunnel?

  - by Phill

  I'm trying to send certain port traffic through my ppp0 interface it's a pptp vpn tunnel, First, I'm using a wireless usb interface, I connect up to my access point, then I initiate my vpn, there is a connection but I do not channel all connexions through that, nor do I want to, so, say I want to channel all port 80 packets through my vpn (interface dev ppp0). I first run: iptables -t mangle -A OUTPUT -p tcp --dport 80 -j MARK --set-mark 0xa to mark the correct packets then I add a table named vpn_table, I then add ip route add default dev ppp0 table vpn_table when I do that traffic begins to dribble through the ppp0, but no pages load. I supose I must have caused some sort of coflict, or the route I'm adding in vpn_table isn't quite right. I'm not sure, I think I'm marking the packets correctly but I can't be sure of that either. UPDATE: I think i've got part of the issue solved: running tcpdump -i ppp0 showed me that indeed there was outgoing requests via ppp0, now, there is never a response, and pages do not load with using that interface..i'm still missing something.

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• Log incoming requests

  - by Maxim Eliseev

  We have Tomcat running on Ubuntu server. It runs a web service, open to the internet. Sometimes it has sudden spike of traffic and goes down. There is nothing unusual in Tomcat access logs. I guess because some of the requests are so 'heavy' that they never finish and hence are not recorded to Tomcat access logs. Is there a way to configure Ubuntu to log incoming requests in the following format (below)? Date, Time, URL (with query string params), IP address (of client) There should be one line per request. Each request should be logged before it is executed. Only incoming requests to ports 80 and 443 should be logged.

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• Can't get bonding and bridging to work for KVM

  - by user9546

  Hi everyone. I can't for the life of me get bonding and bridging to work for the KVM setup I'm building. I'm using a fresh install (not an upgrade) of Ubuntu Server 10.10. I have 4 NICs on the same subnet (two intended for each of my two VMs). I'm trying to achieve the setup that Uthark describes here. But following his guidelines didn't work for me. My eth0 and eth1 did not come up, and "brctl show" showed that br0 didn't have any interfaces (the bond). I assumed it didn't work because he's using 10.4, and this article says there's a recent change in bonding: [I can't post more than one hyperlink per post because I'm a newbie.] I had to use this article to get my interfaces to work at all on the same subnet, which is why I have the post-up lines on some of my interfaces: [I can't post more than one hyperlink per post because I'm a newbie.] I installed ifenslave and ethtool. I also created /etc/modprobe.d/aliases.conf with the following content: alias bond0 bonding options bonding mode=6 miimon=100 downdelay=200 updelay=200 And I included "bonding" in /etc/modules So, after several approaches, here is my latest interfaces file: auto lo iface lo inet loopback auto eth5 iface eth5 inet manual auto br5 iface br5 inet static post-up /sbin/ip rule add from [network].79 lookup 10 post-up /sbin/ip route add table 10 default via [network].1 src [network].79 dev br5 address [network].79 netmask 255.255.255.0 network [network].0 broadcast [network].255 gateway [network].1 bridge_ports eth5 bridge_stp off bridge_fd 0 bridge_maxwait 0 auto eth2 iface eth2 inet manual auto br2 iface br2 inet static post-up /sbin/ip rule add from [network].78 lookup 11 post-up /sbin/ip route add table 11 default via [network].1 src [network].78 dev br2 address [network].78 netmask 255.255.255.0 network [network].0 broadcast [network].255 gateway [network].1 bridge_ports eth2 bridge_stp off bridge_fd 0 bridge_maxwait 0 iface eth0 inet manual iface eth1 inet manual auto bond0 iface bond0 inet static bond_miimon 100 bond_mode balance-alb up /sbin/ifenslave bond0 eth0 eth1 down /sbin/ifenslave -d bond0 eth0 eth1 auto br0 iface br0 inet static address [network].60 netmask 255.255.255.0 network [network].0 broadcast [network].255 gateway [network].1 bridge_ports bond0 eth2, eth5, br2, and br5 all seem to be working fine. The only other thing I could find that looked suspicious is an error regarding bonding in /var/log/messages: kernel: [ 3.828684] bonding: Warning: either miimon or arp_interval and arp_ip_target module parameters must be specified, otherwise bonding will not detect link failures! see bonding.txt for details. even though there is a bond-miimon line in /etc/network/interfaces (if that's what they're talking about). Also, the bond seems to go in and out of promiscuous mode several times on boot: Jan 20 14:19:02 kvmhost kernel: [ 3.902378] device bond0 entered promiscuous mode Jan 20 14:19:02 kvmhost kernel: [ 3.902390] device bond0 left promiscuous mode Jan 20 14:19:02 kvmhost kernel: [ 3.902393] device bond0 entered promiscuous mode Jan 20 14:19:02 kvmhost kernel: [ 3.902397] device bond0 left promiscuous mode Jan 20 14:19:03 kvmhost kernel: [ 4.998990] device bond0 entered promiscuous mode Jan 20 14:19:03 kvmhost kernel: [ 4.999005] device bond0 left promiscuous mode Jan 20 14:19:03 kvmhost kernel: [ 4.999008] device bond0 entered promiscuous mode Jan 20 14:19:03 kvmhost kernel: [ 4.999012] device bond0 left promiscuous mode Any advice would be greatly appreciated. It seems that this must be possible, based on other posts, but I can't see what I'm doing wrong. Thanks.

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• Nice network diagram editor?

  - by Nicolas Raoul

  Writing a commercial proposal, I want to create a nice graphic showing the clients the architecture I thought of for their IT network, with servers, network connections, firewall, load-balancing, etc. For years I have been using dia, but I am tired of it because: the results are not satisfying, very few network elements are available, and each element's graphic representation is really ugly. Question: How to create nice network diagrams? If a better set of elements was available for dia, that would be a solution.

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• [MISC GEEKERY] How To Easily Access Your Home Network From Anywhere With DDNS

  - by YatriTrivedi

  Whether you’re hosting a web page or running a Minecraft server, it’s a pain to keep track of IP addresses. Using a free dynamic DNS, you can turn 174.45.19.242 into mygeekydns.dyndns.org and be free from changing IPs.How To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)Learn How to Make HDR Images in Photoshop or GIMP With a Simple Trick

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• make my Ubuntu 12.04 laptop visible on the network

  - by Andrew Boyd

  I'm ecstatically happy with my 12.04 on my laptop after loading it over my MS Vista... but there's just one thing, one little fly in the ointment.... While I can view our 2 Terabyte, shared hard-drive in the lounge (and copy files back and forth) I can't see my PC (when I boot up in Ubuntu 12.04) nor the Lubuntu computer connected to the TV (for movies, Youtube etc). Printing to the HP office jet on the PC doesnt work over the network either. Have had one dubious flirtation with Samba, which seems to be the only thing I've found that will 'work', however halfway through that "installation" everything just ground to a halt, the directions began to stop making sense... I was working from this page. Our Network consists of the following: Our Internet service is wirelessly sent to us from our provider to our dish on a pole. It comes into the house via an ethernet cable. We split it there to a phone, and to 6 other destinations (bedrooms, computers, and to another splitter in the lounge which has a wifi antennae and 4 ethernet ports). one port goes to the Lubuntu OS PC which is connected to the TV the second port goes to the 2 Terabyte harddrive (MS powered 'Mybooklive') (the other two are empty) My Ubuntu 12.04 laptop connects wirelessly to this splitter in the lounge. I know just enough about computers to get myself into an awful mess without too much trouble We usually can view friends' laptops when they get on our network (as they are invariably MS OS's) Our flatmate, who introduced us to Linux's computer is also invisible How can we make our Linux OS based computers visible on the network and share files and printing?

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• Mirroring Ubuntu on several systems in a computer lab

  - by Harvey Steck

  I am working in a new refugee school where the only Internet service available is a slow satellite connection. We are about to set up a computer lab (already have desktop systems and am about to install Ubuntu on them). I'm a newbie when it comes to Linux, but it seems a better alternative than pirated copies of Windows. I'd like to set up one Ubuntu system, and then mirror that system on perhaps ten to twenty other systems (all of which would be on an ethernet network). I expect to have an internet connection on the one system that I set up, but then it may be difficult to have enough bandwidth to go through all the same steps on the other ten systems. Can I set up the other ten or twenty computers to get all of their updates/upgrades/configuration from one master system? Can I also set things up so that students cannot change the configuration, install new programs, etc.? Appreciate any help you can give. -- Harvey

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• How do I install drivers for the Atheros AR8161 Ethernet controller?

  - by Jessica Burnett

  I have installed Ubuntu 12.04-64 bit on my Lenovo IdeaPad laptop, and the wired Ethernet (LAN) connection doesn't work. Running the lspci -vv | grep Atheros command from the terminal shows me I have the AR8161 Gigabit Ethernet controller: 02:00.0 Ethernet controller: Atheros Communications Inc. AR8161 Gigabit Ethernet (rev 08) This looks like a new product whose drivers are not built into Ubuntu. How do I install drivers to get the AR8161 working?

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• Wireless shows up as disabled, how can I get it working?

  - by Lazer

  $ sudo iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off pan0 no wireless extensions. $ This is what pops up when I click the two computers icon What should I do to get Wifi working on this machine? $ sudo ifconfig wlan0 up SIOCSIFFLAGS: No such file or directory $ $ lspci | tail 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series] 09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 13) 0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01) $

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• Only 192.168.0.3 can request, but anyone can request /public/file.html

  - by mattalexx

  I have the following virtual host on my development server: <VirtualHost *:80> ServerName example.com DocumentRoot /srv/web/example.com/pub <Directory /srv/web/example.com/pub> Order Deny,Allow Deny from all Allow from 192.168.0.3 </Directory> </VirtualHost> The Allow from 192.168.0.3 part is to only allow requests from my workstation machine. I want to tweak this to allow anyone to request a certain URL: http://example.com/public/file.html How do I change this to allow /public/file.html requests to get through from anyone? Note: /public/file.html doesn't actually exist as a file on the server. I redirect all incoming requests through a single index file using mod_rewrite.

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• How do I get network working on a Dell n5010 - Ubuntu 10.04

  - by cyberroger

  Hey. I just formatted a Dell n5010 and installed Ubuntu 10.04. Now,when i try to access the Internet it doesn't find the available networks. Informations about it: My network is set to broadcast SSID; Already typed lspci, and it doesnt returns my wireless card; Tried installing windows drivers from fabricant cd usind diswrapper, but it says it cant complete the installation because it cant find some "Device" folder; I don't know what else to do, I switch the wireless button on/off and it just can't see any wireless connection, includin mine. Here are the informations about lspci: *-network UNCLAIMED description: Network controller product: Broadcom Corporation vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:12:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:fbc00000-fbc03fff And this: 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18) 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06) 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06) 00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 06) 00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06) 00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6) 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) 00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06) 12:00.0 Network controller: Broadcom Corporation Device 4727 (rev 01) 13:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) Thanks!

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• Unable to set default gateway

  - by GrandMasterFlush

  I'm running Ubuntu server via Hyper-V and have successfully installed it but seem unable to ping the server or ping any other machines on the network from the server. After doing a bit of reading I've noticed that the default gateway isn't set but when I try and set it I keep getting error messages which I can't understand. From this article I've tried ip route add default via 10.0.10.200 Which reports: RTNETLINK answers: Operation not permitted If I try running it prefixed with sudo but it reports: `RNETLINK answers: No such process I've editted /etc/network/interfaces but when I start the machine and type netstat -nr there is nothing listed. Can anyone tell me where I'm going wrong please? EDIT : /etc/network/interfaces contains: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp

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• How do I efficiently code both the client and server at the same time?

  - by liamzebedee

  I'm coding my game using a client-server model. When playing on singleplayer, the game starts a local server, and interacts with it just like a remote server (multiplayer). I have done this to avoid coding separate singleplayer and multiplayer code. I have just started coding and have encountered a major problem. Currently I'm developing the game in Eclipse, having all the game classes organized into packages. Then, in my server code, I just use all the classes in the client packages. The problem is, these client classes have variables that are specific to rendering, which obviously wouldn't be performed on a server. Should I create modified versions of the client classes to use in the server? Or should I just modify the client classes with a boolean, to indicate if its the client/server using it. Are there any other options I have? I just had a thought about maybe using the server class as the core class, then extending it with rendering stuff?

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• Can't get HP Officejet 6500 card reader to work.

  - by Dennis

  This network (wired) printer works great using the latest HPLIP drivers. However when I plug in an SD card, it just blinks and never shows up mounted anywhere. Has anyone come up with a way to mount these? I'm using Lucid, 10.04. re: version, hp-info says xxxxx@lucid:~$ hp-info HP Linux Imaging and Printing System (ver. 3.10.5) Device Information Utility ver. 5.2 Copyright (c) 2001-9 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. Using device: hp:/net/Officejet_6500_E709a?zc=HP05857E

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