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  • Fastest router for OpenWRT/etc?

    - by marienbad
    I realize OpenWRT Wiki hardware info tells CPU model and MHz for many routers, but MHz doesn't directly map to speed. So... as far as you know, what are some of the fastest OpenWRT-compatible wifi routers out there?

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  • OpenVPN on Android TCP retransmissions after OpenVPN server reboot

    - by anogaki
    I raised OpenVPN on server for the first time. It worked fine until the server rebooted. The firewall configuration is unchanged. When I tcpdump from tun interface on the server, I always get TCP retransmissions on all TCP packets larger than a few bytes in Android. Using a similar(read: same) configuration on my Linux box from where I'm posting this message now works just fine; no retransmissions, no loss. It did work just fine before the server rebooted. What could possibly cause this? I already tried rebooting Android, it didn't help. Client configuration, used on both Linux PC and Android tablet: dev tun client remote 192.168.0.1 persist-key persist-tun nobind pkcs12 user.p12 mssfix 1480 cipher AES-256-CBC verb 3 1480 is below the mtu of uplink connection on server which is 1492. I tried adding tun-mtu 1480 to Android but that didn't help either.

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  • Display Driver stopped responding and recovered successfully- Blue Screen - HP Elite Book

    - by Fahad Saleem
    I have HP ELiteBook , this problem has become a routine headache for me (after every 20, 25 minutes_ - While using, suddenly everything hangs and black out goes around and then a message pop at the task bar below that display driver stopped ...and successfully recovered but the hangs and black screen continues and then the Blue Death Screen comes" and then i have no other option but to restart Is this a driver problem ? Hardware problem ? what should I do Please be specific , no stories and theories

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  • HP DL360 G6 NC328i Dual Port Gigabit - Windows Server 2003 R2 Driver Problem

    - by brianjd
    I recently installed Windows Server 2003 R2 (64) on a DL360 G6 without using the SmartStart CD (it didn't like the MSDN media). But when I attempted to install the network drivers post-install using the packages from the HP website, I wasn't successful. Though I selected the correct package, the installer reported I did not have the necessary hardware configuration. Has anyone had a similar experience? Thanks

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  • Why isn't Synergy working for me?

    - by Anthony
    It worked for about a week then stopped working. I'm trying to make it work between a Windows 7 laptop and a Windows XP laptop. My router is a Linksys E1000. I tried uninstalling and reinstalling the program multiple times. I've tried port forwarding. I've tried making exceptions in the firewall. I've tried disabling the firewalls. It might be relevant also that Input Director doesn't work either. What am I doing wrong?

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  • How much time do I have to remove a domain controller that was lost using metadata cleanup?

    - by dasko
    I am wondering how long after a Domain Controller has been permanently lost, from the domain due to it dying from hardware perspective, do I have before I have to clean up references of it using meta data cleanup? Planning on doing it soon but not sure if there is anything I should be concerned about. This dead or lost domain controller had no roles other than being a Domain Controller and having integrated Active Directory DNS. As well it held NO FSMO roles, it was just an older replication Domain Controller.

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  • Front audio jack not working or missconfigured?

    - by Nicholas
    I have win xp and asus p5ql-e motherboard. The problem is that when i plug in my headphones on the front audio jack, the computer doesn't recognizes it. They work on the back audio jack but not on the front - how can i be sure that it;s not a software problem (something miss configured or not configured at all), before i conclude that it's a hardware problem (broken front audio jack or miss connected to the motherboard)?

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  • Can not connect to telnet server

    - by BloodPhilia
    So, I can't use telnet to connect to any server but it works fine from a different computer. It just says it can't connect. I tried the following things: Disable firewall and AV protection. (Basically, there was no security feature left online) Telnet is set to "Trusted" in my AV protection. (Kaspersky Internet Security 2011) Using Putty to telnet, but apparently Putty's connection is also inhibited. (Says it can't connect to host) Disabling the telnet client in Control Panel and then re-enabling it. (Windows 7 Ultimate) hosts file is clean. Checked for nasties using MBAM and KIS 2011 as well as going though my HijackThis logs, nothing found. I can connect to the same machines/servers through the web browser, ping, tracert, etc. Only telnet seems to be blocked. Any other thoughts?

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  • Pfsense: Inbound Load Balancing https with sticky connection

    - by Zeux
    first of all I'm very sorry for my English... This is my scenario: Internet Firewall+LB: pfsense_1(Active) + pfsense_2(Passive) in CARP Pool servers: 3 x nginx(PHP5+HTTP+HTTPS) Pfsense 1 and 2 CARP configured with Virtual IP (pubblic). Nginx servers's ips are all private. I want to load balance inbound HTTP and HTTPS connections between the 3 nginx web servers. An importat thing is that the HTTPS connections must be "sticky connections": in HTTPS connections, after login by username and password, I setup a php session and therefore when a client starts a HTTPS connection it will be always redirected to the same nginx server, until it disconnects itself, it closes the page/browser or after a timeout (30minutes?) without activity. Is this possible whit the last release(2.0.1) of pfsense? thank you very much...

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  • UDP flooding multiple servers

    - by Chris Gurney
    What do you suggest? Being UDP flooded as I write to multiple servers in different data centers in 5 different countries . Up to 250,000 packets a second. I believe Cisco routers 5505 would not handle that - (some of our datacenter hosters can offer them. Some have no firewalls to offer.) Our clients naturally have constant disconnects to the server they are on. Hacker started this about three weeks ago. Sometimes for a few hours - up to a few days. If we can't stop it hitting the server with firewalls then how do we stop the hacker - now there is the challenge! Update : Found some of the data centers offer up to 10 firewall rules but would their routers be able to handle the possible volume I am talking about? Thanks Chris

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  • AWS VPN Tunnel going down without traffic

    - by Asfura
    I managed to setup a site-to-site VPN connection from Amazon VPC to a company's network, and after a lot of configuration it was working fine, but now i realized that the VPN tunnel is DOWN every time there's no traffic going trough for a couple minutes. The only way that i have found to generate traffic is to reach the amazon instance from the company's network and then the tunnel goes up again. I had a cronjob doing ping every minute, but i think it should have a keepalive option somewhere, or at least a log file of the tunnels to find out what's going on. Any ideas to keep the tunnel up and/or bring it up from amazon? The firewall is a Checkpoint R75.20, it only allows one tunnel at a time for the same subnet, so i cant have both tunnels active. Thank you, any questions just ask. EDIT I forgot to add, the ping keepalive was working great (maybe generating a bit of traffic, but nothing to worry about), the connection dropped because i had to restart the instance, and it that little time it dropped me.

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  • pfsense multi-site VPN VOIP deployment

    - by sysconfig
    have main office pfsense firewall configured like this: local networks WAN - internet LAN - local network VOIP - IP phones need to connect remote offices (multi-users) and single remote users (from home) use IPSEC or OpenVPN to build "permanent" automatically connecting tunnels from remote location to main location. in remote locations, network will look like this: WAN - internet LAN - local network multiple users VOIP - multiple IP phones in order for the IP phones to work they have to be able to "see" the VOIP network and the VOIP server back at the main office for single remote users ( like from home ) the setup will be similar but only one phone and one computer so questions: best way to tie networks together? IPSEC or OpenVPN can this be setup to automatically connect ? any issues/suggestions with that design/topology ? QoS or issues with running the VOIP traffic over a VPN throughput, quality etc.. obviously depends on remote locations connection to some degree

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  • Persistent Issues on small business network using Cisco 871W and Catalyst Express 500

    - by Ben Campbell
    Being the most qualified (read: still not qualified) to solve our persistant network issues, I've turned to serverfault for guidance. I've done some searching, reading related documentation on cisco.com and tried a bit of troubleshooting. Here is the config: 100mb synchronous connection from a business internet provider (tested multiple times at 100meg at the source) Cisco 871W wireless point & router is where the WAN connection starts (this serves all our wireless). The only wired connection in the 871W is the Catalyst switch listed below. Cisco Catalyst Express 500 (24TT) is where all the wired connections terminate. About 20 Windows workstations and servers (AD/Webservers only). Some services in EC2 including mail and other web servers/apps. I've been TOLD cabling internally should be gigabit-ready. Here are the problems: generally slow download rates from the internet to the desktop/laptop frequent "page cannot be displayed" errors in browsers-sometimes 3 or 4 reloads are necessary... often times CSS wont load or other content requiring the browser to connect to a different server. slow speed within the LAN from workstation to workstation copying files. I would expect extremely fast data transfer workstation to workstation / server to workstation in this simple network. Several things I need to admit: I'm not primarily a network guy. Funding is relatively low, I need to be the guy that finds the solution. I understand most of the terminology and most of the technology. Implementation is where I fail due to lack of experience. Getting to the point: I'm wondering whether experienced network admins think that our small network should be sufficiently served with our current hardware if configured properly... or if we should purchase new equipment and start fresh? If starting fresh is the plan, whatever that new equipment may be is a likely different question entirely. If I haven't provided enough information, I will happily do some troubleshooting and update with the results. I have experience using wireshark and some other tools. Please let me know what you think would be most helpful and thanks in advance. EDIT: I forgot to add that the Cisco applicance will not finish loading the SDM Express console. It hangs every time at the "populating modules... DHCP". It eventually crashes and closes. I've rebooted the hardware and this still happens.

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  • IIS FTP Server works locally, but cannot connect from remote

    - by Mike Christensen
    I'm trying to setup an FTP server on Windows 2008 Server. I can connect locally: C:\>ftp localhost Connected to WebHead1 220 Microsoft FTP Service However, when I try to connect from remote, it doesn't work: ~>ftp x.x.x.x ftp: Can't connect to `x.x.x.x': Operation timed out ftp: Can't connect to `x.x.x.x' I've tried everything I can think of with the settings. The FTP server is bound to all unassigned IPs and listening on port 21. I've also checked "FTP Server" in the firewall settings. Nothing appears in the FTP log files. I'm totally out of ideas!

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  • Cyrus IMAP: Unable to connect to remote host: Connection refused

    - by Nick
    I'm working on setting up a Cyrus 2.2 IMAP server on Ubuntu Server 9.04. If I telnet from the server itself: # telnet localhost imap I get: * OK IMAP Cyrus IMAP4 v2.2.13-Debian-2.2.13-14ubuntu3 server ready Which is what I should be seeing. If I try from another machine on the network: telnet 192.168.5.122 imap I get: telnet: Unable to connect to remote host: Connection refused To the best of my knowledge, there is no firewall running on the box. I've tried restarting the saslauthd and cyrus2.2 daemons, with no effect. What else can I try?

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  • Can connect to Samba server but cannot access shares?

    - by jlego
    I have setup a stand-alone box running Fedora 16 to use as a file-sharing and web development server. Needs to be able to share files with a PC running Windows 7 and a Mac running OSX Snow Leopard. I've setup Samba using the Samba configuration GUI tool. Added users to Fedora and connected them as Samba users (which are the same as the Windows and Mac usernames and passwords). The workgroup name is the same as the Windows workgroup. Authentication is set to User. I've allowed Samba and Samba client through the firewall and set the ethernet to a trusted port in the firewall. Both the Windows and Mac machines can connect to the server and view the shares, however when trying to access the shares, Windows throws error 0x80070035 " Windows cannot access \SERVERNAME\ShareName." Windows user is not prompted for a username or password when accessing the server (found under "Network Places"). This also happens when connecting with the IP rather than the server name. The Mac can also connect to the server and see the shares but when choosing a share gives the error "The original item for ShareName cannot be found." When connecting via IP, the Mac user is prompted for username and password, which when authenticated gives a list of shares, however when choosing a share to connect to, the error is displayed and the user cannot access the share. Since both machines are acting similarly when trying to access the shares, I assume it is an issue with how Samba is configured. smb.conf: [global] workgroup = workgroup server string = Server log file = /var/log/samba/log.%m max log size = 50 security = user load printers = yes cups options = raw printcap name = lpstat printing = cups [homes] comment = Home Directories browseable = no writable = yes [printers] comment = All Printers path = /var/spool/samba browseable = yes printable = yes [FileServ] comment = FileShare path = /media/FileServ read only = no browseable = yes valid users = user1, user2 [webdev] comment = Web development path = /var/www/html/webdev read only = no browseable = yes valid users = user1 How do I get samba sharing working? UPDATE: Before this box I had another box with the same version of fedora installed (16) and samba working for these same computers. I started up the old machine and copied the smb.conf file from the old machine to the new one (editing the share definitions for the new shares of course) and I still get the same errors on both client machines. The only difference in environment is the hardware and the router. On the old machine the router received a dynamic public IP and assigned dynamic private IPs to each device on the network while the new machine is connected to a router that has a static public IP (still dynamic internal IPs though.) Could either one of these be affecting Samba? UPDATE 2: As the directory I am trying to share is actually an entire internal disk, I have tried to things: 1.) changing the owner of the mounted disk from root to my user (which is the same username as on the Windows machine) 2.) made a share that only included one of the folders on the disk instead of the entire disk with my user again as the owner. Both tests failed giving me the same errors regarding the network address. UPDATE 3: Not sure exactly what I did, but now whenever I try to connect to the share on the Windows 7 client I am prompted for my username and password. When I enter the correct credentials I get an access denied message. However I did notice that under the login box "domain: WINDOWS-PC-NAME" is listed. I believe this could very well be the problem. Any suggestions? UPDATE 4: So I've completely reinstalled Fedora and Samba now. I've created a share on the first harddrive (one fedora is installed on) and I can access that fine from Windows. However when I try to share any data on the second disk, I am receiving the same error. This I believe is the problem. I think I need to change some things in fstab or fdisk or something. UPDATE 5: So in fstab I mapped the drive to automount in a folder which works correctly. I also added the samba_share_t SElinux label to the mountpoint directory which now allows me to access the shares on the Windows machine, however I cannot see any of the files in the directory on the windows machine. (They are there, I can see them in the fedora file browser locally) UPDATE 6: Figured it out. See answer below

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  • How do I setup an FTP server on Windows 7?

    - by Matt Frear
    I'm having trouble getting an FTP server setup on Windows 7. I've added the service using Control Panel - Programs - Turn Windows features on and off. I can see the service has started in Control Panel - Services. But then when I fire up a Windows command-line window, cmd, I get Not connected., C:\Users\mattf>ftp localhost ftp> ls Not connected. ftp> open localhost ftp> ls Not connected. ftp> dir Not connected. ftp> quit C:\Users\mattf> And that's as far as I've got. I have no idea why this isn't working - could it be firewall settings?

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  • Static IPv6 address advertising and IPv6 autoconfig in Debian/Ubuntu

    - by Pascal
    I have a network that advertises IPv6 addresses through IPv6 autoconfig. To allow DNS lookups and to have fancy IP addresses, we setup "static" IPv6 addresses through /etc/network/interfaces: auto eth0 iface eth0 inet dhcp iface eth0 inet6 static address a:b:c:d:e::f netmask 64 Whenever we now connect through IPv6 Linux uses the IPv6 autoconfig address: a:b:c:d:21d:60ff:fe4a:479 and not the static IPv6 address: a:b:c:d:e::f A server on the other side only sees the autoconfig address. Is there a way to force linux (Debian/Ubuntu) to use the static address for outgoing packets? This is especially interesting for reverse DNS and firewall settings. I don't want to disable the IPv6 autoconfig since I don't have control over the settings the router advertises.

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  • Components needed for VPN

    - by Anriëtte Combrink
    Hi there We eventually got our Mac Mini Server. We now want to set up a small Remote Access VPN using this Mac Mini Server. Firstly we are not sure of the components needed additionally to the server to setup this VPN. We currently have the following: 1 Mac Mini Server 1 Firewall Router (Billion 802.11g ADSL2+ router with VPN capabilities [it says so on the box]) 4Mbps ADSL connection (which should have VPN capability enabled by the service provider, or so we heard) We are not sure what else needs to be included to enable our small VPN. Any advice would be really helpful.

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  • Wamp virtualhost with supporting of remote access

    - by Farid
    To cut the long story short, I've setup a Wamp server with local virtual host for domain like sample.dev, now I've bind my static IP and port 80 to my Apache and asked the client to make some changes in his hosts file and add x.x.x.x sample.dev , I've also configured my httpd virtual host like this : <VirtualHost *:80> ServerAlias sample.dev DocumentRoot 'webroot_directory' </VirtualHost> Client can reach to my web server using the direct access by ip address, but when he tries using the sample domain looks like he gets in to some infinite loop. The firewall is off too. What would be the problem?! Thanks.

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  • Windows 7 port Forwarding Issue

    - by Elliot
    I can't get port forwarding to work now that I am using windows 7 (64-bit). I am using a wireless connection (no wired connection available). I have the ports forwarded (IP has been double checked, router settings are confirmed), there is an exception for all of the programs in question in windows firewall, and in the resource monitor windows lists the ports as available, not restricted, and yet when I either use a specific program (ie utorrent, DC++, Command & Conquer 3) or check using firefox, the port reads as closed. How do I get the port forwarding to work?

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  • Is Splitting IDE hdds between Primary and Secondary faster?

    - by earlz
    Hello, I'm doing RAID 0 on two IDE harddrives (yes, this is old hardware). Will the harddrives be faster if I attach them separately so that one is on the Primary IDE controller and the other is on the Secondary IDE controller? Or would it just be as good as having them both on the Primary IDE as master and slave?

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  • Setting up a wireless access point with Ubuntu server

    - by Solignis
    I am trying to setup a wifi access point with my Ubuntu server, everything "seems" to be good since I got a better wifi radio (long story). But now I am a little confused, when my Android phone tries to associate with the AP it is able to with no problem but then it cannot get an IP address from my DHCP server. I have tried messing with firewall rules, nothing... I tried making a bridge interface as per what I am told I had to do. ( Not sure if i did it right though). What I am trying to do if make the wireless interface an extention of my eth0 network. Am I on the right track or am I going about the wrong way?

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  • IPSEC Windows 2008 <--> Fortinet 60B

    - by Elijah Glover
    I am trying to establish a IPSEC vpn, between an office DSL connection and a single virtual machine. I have done hub-spoke stuff before with cisco and fortinet routers, never hardware <-- software. Fortigate 60B - 10.20.1.1/24 Windows Server 2008 r2 Installed On VM I have seen some guides, to do this with juniper screenos (guide uses first release of 2008, they introduced windows firewall with advanced security), but none using fortinet equipment. Anyone ever been successful? Or should I install RAS/PPTP, so I can dial in?

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