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• CentOS not allowing remote MySQL connections

  - by nd8ad

  When assigning a user from a remote IP to connect to a database it is saying that it's failing to connect. It is also failing to connect with root so something is wrong. Bind IP is off and I have also tried disabling iptables, still no dice. Port 3306 is forwarded. I'm running on Centos 5.6, using phpmyadmin, but I have also tried to assign the user via the commandline and create a new database, still not working. Been googling and troubleshooting for hours now, no dice.

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• EC2: map multiple applications to different domains

  - by EsseTi

  i'm playing with EC2 and i've been able to create my instance that has a django appliacation on port 80, and a tomcat on 8080. now, with elastic IP i can manage to redirect my domain to django application. now i would like to map subdomains to each tomact applications. for example django app (ec2...:80) --> mydomain.com tomcat (ec2...:8080) --> tomcat.mydomain.com webbapp1 (ec2...:8080/webapp1/) --> webapp1.mydomain.com is this possible with the free account? ciao

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• Intel Network Connection: This device cannot start. (Code 10)

  - by harryuser

  I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I have a Intel PRO/1000 PT Dual Port Server Adapter in a PCI express slot and I am running Windows 7 Professional 32-bit. Also I am running with Intels latest network driver, in the 82578DC questions this means 11.6.92.0 with driver date 2010.04.12. The problem I am having is that the Intel 82578DC Gigabit Network Connection will not start on boot with the following message: "This device cannot start. (Code 10)". Disabling and then enabling the device after boot makes the network connection work again without any problems, but as soon as I reboot the problem occurs again. Any suggestion how to fix this? I have seen this problem on another Intel S3420GP board as well in Windows 7 that is.

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• What domain names are served by a host?

  - by pjmorse

  For a set of VPSes operated by my company, I'd like to get a list of domain names hosted by each. The list of names has grown in an ad-hoc way for a few years. Is there a simple way to query the Apache and/or Nginx configurations to see what domains the server answers to on port 80? It is safe to assume (a) that I have sudo on these systems, and (b) they aren't using wildcards, although a solution which acknowledged that a wildcard was in use would be useful too if it also provided a list of explicit domains.

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• Cisco WLAN Controller not pushing out DHCP addresses, what else could it be?

  - by Name

  On our Cisco WLAN Controller web interfaces, in Controller Interfaces, I have made a new interface with these settings: VLAN Identifier 202 IP Address 172.16.202.1 Netmask 255.255.255.0 Gateway 172.16.202.254 Primary DHCP Server 172.16.100.3 Secondary DHCP Server 172.16.100.2 Port: LAG I've also made a new WLAN and assigned it to the above interface. I have saved changes. But our wireless devices, although they seem to authenticate with the WLAN fine, they always get stuck on "obtaining DHCP address", so it seems the WLAN Controller isn't pushing out DHCP addresses to our devices. We do have a DHCP scope for the above in Windows Server 2008 R2 and everything there seems fine. If I connect a device with a static address (e.g. 172.16.202.10), it will connect. Stuck on what to do :(

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• Is there a way to use something like RewriteRule ... [PT] for an external URL?

  - by nbolton

  I have a non-apache web server running on port 8000, but this cannot be accessed from behind corporate firewalls. So, I would like to use my apache 2 server as a proxy to this other web server. I've tried using: RewriteEngine On RewriteRule /.* http://buildbot.synergy-foss.org:8000/builders/ [PT] ... but this does not work; I get: Bad Request Your browser sent a request that this server could not understand. However, it worked fine with [R]. Update: Also, when using ProxyPass, I get this error: Forbidden You don't have permission to access / on this server.

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• Unable to connect to vrde virtualbox VM remotely

  - by b1ackjosh

  So I've remotely created my first headless using ssh. Now I'm attempting to connect to this VM using RDP so I can install Ubuntu Server, but I cannot get connected at all. When starting the VM everything appears fine: $ vboxheadless -s WebTesting Oracle VM VirtualBox Headless Interface 4.0.16 (C) 2008-2012 Oracle Corporation All rights reserved. VRDE server is listening on port 4455. And showvminfo shows: VRDE: enabled (Address 0.0.0.0, Ports 4455, MultiConn: off, ReuseSingleConn: off, Authentication type: null) However I'm still prompted with the "enter your credentials" screen every time I attempt to connect. From reading the documentation null shouldn't prompt me with this screen at all... Any help with this is greatly appreciated. P.S. I am using ssh tunneling in putty to tunnel in to my network.

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• Need to configure multiple default gateways for four seperate physical network ports for a FreeBSD Webserver

  - by user20010

  I need to configure default gateways for four separate physical network interfaces for a FreeBSD Webserver. Basically, this is a web server that needs to be accessed by multiple WANS. I've been using various online resources, and a combination of setfib, pf, and ipfw. This web server will be deployed in multiple sites where access to next hop router info is not available, so we can't use static routes. We've used setfib to successfully create multiple routing tables and can ping beyond every default gateway we've created. Using setfib # ping ip.addr.what.ever we can ping anything available on a wan and beyond the router. The problem is we can't get Apache web server (port 80) traffic to route out when external users access the server(box). Multiple people have examples of binding setfib to ipfw commands, but none of them seem to work.

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• How to stop windows 7 from asking to format a disk?

  - by clinux

  Hey guys, I have this USB flash drive with a Linux partition that I use inside VirtualBox. Each time I insert it into the USB port, windows keeps asking if it should format it. Is there anyway to disable Windows from asking that? Thanks. EDIT: Disabling auto-run has not resolved the problem unfortunately. Windows will still check if the disk contains a partition it knows about, and ask to format if it doesn't know it. Really nice try though, any other ideas?

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• USB 3.0 hub; what can it power?

  - by pouzzler

  I own an Asus UX31A laptop, equipped with 2 USB 3.0 ports. I would like to connect several USB devices to one of these ports, using a USB 3.0 hub. 1) Am I correct in assuming the Asus "USB Charger+" commercial blurb corresponds to the USB 3.0 standard "Battery Charging Specification 1.2", and furthermore inferring that the laptop can deliver 1.5A through a USB port? 2) Does a powered external USB 3.0 hard drive draw on the USB power lines? 3) I would like to connect the aforementionned drive, an android phone, and a 200mA rated optical mouse to an unpowered USB 3.0 hub, itself plugged into the laptop. Should my above assumptions be false, would this setup be able to power all three devices? Thanks to the usb guru who'll settle my fears to rest. Best regards, Sébastien

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• Setup Apache in Amazon AWS

  - by hudarsono

  Hi, I tried to setup apache 2.2 in amazon aws using amazon ami. i did installed httpd and php and congirue http.conf to use /var/www/html. Then put file index.html on that folder. But when i tried to use browser to browse my domain which is ec2-122-248-255-181.ap-southeast-1.compute.amazonaws.com, nothing was loaded. I did start httpd by running apachectl start, and i can see it listening on port 80. Does anybody know what is wrong?

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• vSwitch configuration with 12 uplinks

  - by Joshua

  I have been doing a lot of research on vSwitch configurations, but I think I am more confused now after all of the reading that I have done. So here is my situation 3 ESX Hosts (12 nics each), 1 iSCSI SAN, 2 Force 10 switches. Should I create individual vSwitches for MGMT, vMotion, VM, and SCSI traffic? or do I need to group anything together in the same vSwitch? I am going to have 4 vLANS total, one for each of those items, do I need to do any trunking on the physical switch or just assign the correct vLAN to each physical switch port?

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• How to configure Apache to act as an SSL proxy to an application server?

  - by ripper234

  I have one physical server that runs: an Apache (httpd) server another web server (let's say Tomcat for sake of argument) on port 1234 Can I configure the Apache server to act as a proxy for SSL traffic, while keeping the application server blissfully unaware of SSL? What I imagine is: Traffic to http://myserevr.com/app is redirected to https://myserver.com/app Traffic to https://myserver.com/app is proxied to the application server. My SSL certificate is only installed on the Apache server, not on the Application server Other traffic to the Apache server (http://myserver.com/anotherapp) is served directly from the Apache server What's the best setup to achieve this? (On Ubuntu, if that matters)

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• MS 2008 R2 Drops Remote Desktop Sessions in 10 seconds or less every time

  - by mike42

  I'm adding a new 64-bit server to our domain. Everything seems fine except when accessing the machine using remote desktop, after a few seconds the connection is lost. The error message is "This computer can't connect to the remote computer." "Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator." A similar result with Telnet on port 3389. I am able to connect but if I hit a key the connection to host lost. The event log shows the successful login. No errors. Any ideas?

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• I Cannot connect to remote MySQL database using SSH tunnel

  - by Scott

  Brand new server, brand new MySQL 5.5 install on Ubuntu 12.04. I can log in to the database as root from the command line. I can log on via Navicat MySQL or Sequel Pro as root on port 3306 from my Mac. I cannot log in using an SSH tunnel to the server and then to the database as root. I have tried both localhost and 127.0.0.1 as server for the local connection part. My password is fine. root is currently defined at %, 127.0.0.1, and localhost. I have set up this same type of connection at least 30 times before and never had a problem. The SSH connection gets made with no problem, and then it just hangs trying to connect to the DB and finally times out. The only thing I changed in my.cnf was to comment out the bind-address = 127.0.0.1 line. Any help? Any Ideas?

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• Clarification of the difference between PCI memory addressing and I/O addressing?

  - by KevinM

  Could someone please clarify the difference between memory and I/O addresses on the PCI/PCIe bus? I understand that I/O addresses are 32-bit, limited to the range 0 to 4GB, and do not map onto system memory (RAM), and that memory addresses are either 32-bit or 64-bit. I get the impression that memory addressing must map onto available RAM, is this true? That if a PCI device wishes to transfer data to a memory address, that address must exist in actual system RAM (and is allocated during PCI configuration) and not virtual memory. So if a PCI device only needs to transfer a small amount of data at a time, where there is no advantage to putting it into RAM or using DMA, then I/O addressing is fine (e.g. a parallel port implemented on a PCI card). And why do I keep reading that PCI/PCIe I/O addressing is being deprecated in favour of memory addressing? Thanks!

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• Will the VMs on the ESXi cluster be running after disconnection from the network?

  - by John

  What will happen if I disconnect the ESXi cluster configured with HA from the switch(I need to change the power source on the main switch) and there is no management port redundancy? I'm going to disable the host monitoring and VM monitoring within HA settings, and connect to the switch after it boots up. Will the virtual machines be running if I disconnect the hosts from the network so they will not see any other ESXi host? I hope everything will work fine and the hosts will join the cluster after they connect to the network again, but I would like to be sure ..

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• ipfw is blocking access to a script

  - by user225551

  I need to figure out how to troubleshoot why ipfw is blocking my script. This script parses out some rss feeds over the net. I have about 10 different feed urls. About 5 or 6 of these urls are returning xml, the others are timing out. If I turn the firewall off, they will all work. The issue I'm having is that I have no idea what port I need to open for the urls that are timing out. Is there a command that will show me this?

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• sendmail error "Relaying denied. Proper authentication required. (state 14)."

  - by renevdkooi

  I am an absolute newB on sendmail, now I installed sendmail, configured it (as far as i know) added localhost-names, added access entries added virtuser entry, opened port 25 in iptables. Now when I connect from another location on the internet, and use telnet server.com 25 and use manual SMTP commands (HELO, MAIL From etc) the mail goes and arrives and gets put to the right user. but When I use another client and it's relayed by (for example google) I get this error back: Relaying denied. Proper authentication required. (state 14). What setting did I forget? Any config files I need to post so you can help me? I use CentOS 5.5 and the latest sendmail rpm

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• SMTP 25 blocked externally

  - by Jeff

  not sure how to title this question... we run an exchange server with around 80 internal users, all outgoing mail is relayed off a smart host (ISP smtp server) so nothing is actually sent to the world via our server. i wanted to check the server, locally i can telnet to port 25 with no issues and receive the esmtp service ready reply. whenever i do it from an external address (off our local network) i receive unable to connect error 10060. can this cause problems with SPF records, and reverse DNS ? should my exchange server be able to accept smtp requests, requiring authentication before i am able to send from external addresses? if so how... also the exchange server is behind a NAT (asa) device, more than likely thinking that the nat is not configured to route the smtp 25 request to the exchange server.. thanks

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• Event 4625 - Logon Failure - Server 2008 R2 is logging them all over the place ! How to stop the attack?

  - by user72593

  I've been monitoring failed logons to a server which is directly connected to the internet with no hardware firewall in the way...testing purposes only. Using the Server 2008 R2 firewall, I blocked access to just about everything except RDP, then I told the firewall to only allow connections to the RDP port from "MY" static IP. I tested from other locations and I am not able to login to the server unless i'm at my office. So how are people coming from Chinese IP's able to attempt logons and get logged as failures ?? Is there something i'm missing that needs to be blocked? Any help would be appreciated.

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• Dns.GetHostEntry is not giving me a good IP to pass to IPEndPoint function in my domain

  - by Beach Miles

  My c# code from my asynchronous socket client to get the address of my socket server. string testServerIP = "192.168.0.1"; IPHostEntry ipHostInfo = Dns.GetHostEntry(testServerIP); //time server address IPAddress ipAddress = ipHostInfo.AddressList[0]; IPEndPoint remoteEP = new IPEndPoint(ipAddress, port); I get the following error message from the above code. CheckServerReconnect:Cant connect to 192.168.0.1 The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for

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• Can't access link in network using fully qualified domain name

  - by user1033715

  I have installed windows server 2003 and configured Domain controller (domain name - xyz.com) and DNS service. for that I have configured fully qualified domain name as server.xyz.com also I have installed apache tomcat with port 8080 on that server and accessed link successfully using "http://localhost:8080", "http://ip address of server:8080", "http://server.xyz.com:8080". but its working for local machine, and when I tried to access it from another machine in same network using "http://ip address of server:8080" its worked for me. but when I tried it using fully qualified domain name i.e. "http://server.xyz.com:8080" it's giving me error, "Could not connect to server.xyz.com" Please guide me getting this setup done. I need to be able to access this link "http://ip address of server:8080" as "http://server.xyz.com:8080" outside my network Any suggestion are highly appreciated..

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• Spoof database connection to be local instead of remote

  - by spydon

  I am trying to connect one of our clients "as is" programs to a remote database instead of a local one, they say that they have coded it to be able to do it, but for some reason the program crashes when trying to connect to a remote database. I don't have the source code so I can't really dig much deeper than that and the company does not provide any upgrades or custom modifications. I can succesfully connect to the database through SqlDbx and HeidiSQL so I know that the server is set up correctly. This is why I need to find a way to spoof a remote connection on port 1433 to appear like a local database connection to the program. I thought about editing the hosts file, but it will most likely crash other programs if I bind localhost to another IP than 127.0.0.1. Any ideas?

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• IIS: Can't access my site

  - by Markus

  Hi I have Windows 7 Professional. With IIS 7 or 7.5 I have set up a little website. So far all works fine on http://Localhost:80 - I can see the site. Then I set up the firewall so port 80 is open. My Router routes TCP:80 to my pc. But from my second pc I cant access the site. I can ping the other pc but why I can't access the page through the LAN? Please help!

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