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• SSH without portforward

  - by maigel

  I have a raspberry pi lying around in my dorm room. It's connected to campus internet which has all ports closed and I obviously don't have any access or permission to port forwarding. Now I want to ssh to the raspberry pi but this isn't possible since I can't port forward. I do however have a cheap vps doing nothing. Is there a way to make the pi connect to the vps and then use the vps as some sort of tunnel to ssh to the raspberry pi without having any port forwarding done?

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• Access denied errors in windows server 2008 for system administrator

  - by NLV

  Hello I've a HP Pavilion DV4 with windows Server 2008 R2 enterprise. My system is connected to a domain. I login using my domain account. I am the administrator for the local machine. But I'm getting access denied everywhere (file system, running commands, using visual studio..literally everywhere..) in my machine. What could be the problem? Any ideas? Please tell me if you need more information as I'm just a developer with less knowledge in system administration.

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• Bind dns server in Solaris 10 and win xp clients

  - by stevecomptech

  Hi, Added this in zone db file, i am running solaris 10 _ldap._tcp.mydomain.com. SRV 0 0 389 dc.mydomain.com. _kerberos._tcp.mydomain.com. SRV 0 0 88 dc.mydomain.com. _ldap._tcp.dc._msdcs.mydomain.com. SRV 0 0 389 dc.mydomain.com. _kerberos._tcp.dc._msdcs.mydomain.com. SRV 0 0 88 host.mydomain.com. Now i get this error when i try to join win xp to the domain The query was for the SRV record for _ldap._tcp.dc._msdcs.mydomain.com The following domain controllers were identified by the query: host.mydomain.com Common causes of this error include: Host (A) records that map the name of the domain controller to its IP addresses are missing or contain incorrect addresses. Domain controllers registered in DNS are not connected to the network or are not running. What do i need to change in order my win xp join the domain

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• Multiple connections to the same Wireless Network in Windows 7

  - by Jamek

  Hello, my university just limited bandwidth to 512 kbps (that's 64 kB/s!) for each connection. I was thinking to make multiple connection to the same wireless network (called "internet"), is this possible under Windows 7? I know it's possible to connect to more than one WLAN through the "hostednetwork" concept in netsh: netsh wlan set hostednetwork mode=allow ssid=xxxxx netsh wlan start hostednetwork However this method doesn't seem to work, I don't know if it's due to the authentication method (through certificates while hostednetwork seems to support just a "passphrase") or because I'm already connected to that network with the same MAC. Can you think to some tool able to do this?

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• CentOS: OpsCenter does not see other node's agent

  - by Alice

  I'm new with Apache Cassandra. I am trying to install a little sample cluster using two CentOS server. I followed the documentation (Tarball installation) and the nodes are up. However, when I go to OpsCenter, the nodes cannot see each other's agent (there is always "1 of 2 agents connected"..I tried to fix, but nothing change). I tried both to disable and enable SSL, I tried to set the incoming_interface in opscenter.conf, I tried almost everything the network suggested to me, but the problem persisted. Now, I have SSL enabled, and agent log tell me: "There was an error when attempting to load stored rollups." Is there someone that could help me, please?

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• Establish direct cable connection between Windows 8 PCs in home network

  - by Marie. P.

  I'm running two PCs, a desktop and a laptop with Windows 8 Release Preview ("Build 8400"). They are connected to the same router in infrastructure mode, thereby having wireless internet. Due to often file synchronization between the machines I want to establish a cable connection that allows direct file transfer, without needing to use the wireless. When I plug in the cable (normal, not cross-over), I see in "Control Panel\Network and Internet\Network Connections": "Ethernet - unidentified Network" on both PCs. Transferring a file between both still only uses the WiFi via the Router. I noticed that when turning off the wifi on one PC, I can set up a shared internet connection that will work via Ethernet-cable, but since sometimes only one PC runs, sometimes the other one, I do not want to have the internet of one machine to be dependent on the other one being switched on. I do not have a crossover-cable, but since I did connect the PCs already successfully (just without both being on the internet), I'm sure that this should also work with a normal ethernet cable.

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• Add a server between router and switch (production)

  - by Kossel

  I have a small office network basically like below, there are more router/pc connected in S1. As you can see, the router is doing job of DHCP, DNS. but now I wish to add a Linux server between R1 and S1, So I can monitor the network traffic and do other more advance server admin stuff. the whole office network is 192.168.1.x and people are using their computer everyday. What network configuration should the new Linux server have (both interfaces) in order to minimize the changes need in the network? tried to change R1 ip to 192.168.100.1 them add the server with FE0/0 192.168.100.1 and FE0/1 192.168.1.1 but looks cannot ping the original Router..

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• Cannot resolve a single A Record from client machine

  - by Alex

  I set up a simple Bind server on my VPS and it is working properly. The problem occurs with my local windows machines, which are connected to internet through the home router. I created an A-record named 'dev' and it is invisible from my local network for some reason, though people from other locations can resolve dev.mydomain.com. Ironically, dev.mydomain.com cannot be resolved for myself only. If I add another A-record, say, 'gamma' then it becomes visible from my local windows machines instantly. So this is just for that particular 'dev' name. The only difference is that I had dev.mydomain.com server on another IP but that was a month ago; all nameservers have been changed since then. I tried to reboot my router and flushed dns cache on windows machines: no result. Thank you in advance.

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• How to configure a static wildcard subdomain with dnsmasq.

  - by Prody

  I have a network behind a NAT with a few machines. The machines are: router - NAT, dnsmasq, forwarding - directly connected to the inet server - which runs ssh, www and some other stuff clients - which do stuff on server I also have mydomain.com. server.mydomain.com is pointing to my connection's IP (single IP), which is the router, which forwards ports to server. Server, has a httpd running, which serves different sites based on vhosts. So I have site1.server.mydomain.com, site2.. The problem is that all the traffic is going thru the router, and when I check logs I always see the router's IP for everything (so it's hard to see who is running the script with the while(1)). I would just ServerAlias site1.server.local, but most of the sites have a root URL saved somewhere on top of which other URLs are built, so I can't do that. The solution for me would be telling dnsmasq somehow to answer to *.mydomain.com with server's IP. Is this possible somehow?

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• How to connect Microsoft Bluetooth Mouse 5000 to Windows 7?

  - by davidshen84

  I have a Microsoft Bluetooth 5000 mouse, and I used it with my Linux and Windows 7 system. In Linux, the mouse can always connect to the system normally. But on Windows 7, after I have successfully added the mouse to Windows 7, if I have connected the mouse to the Linux system, it will not be able to connect to the Windows 7 system any more - unless I remove the mouse and add it again. I tried to play all settings I could find in the Bluetooth settings on Windows 7, but cannot fix this problem. How can I use the mouse without having to remove and add it again ?

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• How to route traffic from VM (Parallels) over an Open VPN connection on the host (OS X)

  - by withakay

  Scenario: I have a Mac running Lion that is connected to an OpenVPN server I have a Windows XP VM (running on parallels, but I don't think this is important) I want to be able to route traffic from the XP VM via the host Mac's OpenVPN connection so that I can log on to a domain. The remote network is 172.16.0.0/23 (255.255.254.0) Open VPN is configured to supply address in the 10.100.101.0/24 range and sets up the routing to 172.16.0.0 using the gateway 10.100.101.1/32 My local network is 192.16.1.0/24 NOTE: I do not want to install OpenVPN into the XP virtual machine as I would have to use a passwordless key in order for OpenVPN to connect before logon. Anyone got any ideas?

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• Router used as ethernet bridge wont show up

  - by user1255271

  I have a Netgear router in my living room that has the wireless signal. It is connected to a Powerline plug that goes up to my bedroom. That is plugged into another router that is used as an ethernet hub. It's cables go into my PS3 and my server. The second router shows up as a hidden network on my laptop, and I can connect to it. But it is not listed as an attached device on my main router, and my laptop says that it connects straight to the main router, not the second one. How can I connect to this router? Aside from swapping the two? Thanks in advance.

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• Is it possible to kill a RAS connection which won't disconnect.

  - by sgmoore

  I have a Windows 2003 Server which has a number or RAS Connections to some of our customers. Occasionally the connections go into a mode where there are connected, but not working. Disconnecting and reconnecting solves the problem. However sometimes you can not disconnect as I get the following error message It is not possible to disconnect at this time. The connection is currently busy with a connect or disconnect operation. There are no visible connection dialog boxes when this message occurs and I usually end up having to restart the server which obviously affects all the other users. I know that if you have a service that is stuck 'stopping' you can just kill it. Is there anything similar that you can do to reset a ras connection?

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• Routing between two subnets. (Need Solution)

  - by rehanplus

  Need help according to scenario given: Client end PCs: 400 + Network : Server 1 (Linux) : 192.168.2.0/24 (For Application, Internet not working) GW: 192.168.2.1 Clients: 192.168.2.1 - 254 Server 2 (Linux) : 192.168.3.0/24 (For Internet users) GW: 192.168.3.1 Clients: 192.168.3.2 - 254 Server 2 is connected to DSL Broadband. Server 1 and Server 2 both are on same physical network i.e. Same switches. Current issue: i have to deploy a file and print server but this server will be accessed by both (192.168.2.x and 192.168.3.x) one same workgroup. as both subnets are on same switched network. Limitations: Currently there is no hardware routers and firewall. Need to complete this task with Linux / Windows / AD. Tested / Worked so far: Configured one PC with two NIC's With the IPS: NIC 1 : 192.168.3.2 GW: 192.168.3.1 Subnet: 255.255.255.0 NIC 2 : 192.168.2.2 GW: Empty Subnet: 255.255.255.0 Kindly provide any solution what should i do to get sharing enable on both Subnets. Thank you All

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• Which universal or driverless printing solution do you use/recommend?

  - by Matt

  I'm in need of a driverless printing solution for Microsoft Terminal Services 2003/2008. This is mainly to support clients who are connected through broadband into our hosted servers. We were hoping that MSTS 2008 thinprint would be the answer but unfortunately it performs poorly in the print area. The files are too large. I found the following slightly outdated URL: http://www.msterminalservices.org/software/Printing/ This lists a number of products but I have no experience with any of them. I'd like a product that works/easy to install (as our clients are remote and not particularly tech savvy) and ideally I just pay for the server license and not every clients. What is your experience/recommendation and tips you can offer me in regards to TS printing? thanks in advance.

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• Mac OS X desktop background gets reset to "Andromeda Galaxy.jpg" when users log out

  - by smokris

  I'm running Mac OS 10.6 server, and have a set of 10.6 and 10.7 workstations connected to it for authentication and MCX. Users have network profiles (home folder stored on server, via AFP). When users are logged in, they can change their desktop background. So far so good. However, the next time they log in, their desktop background has been reset to "Andromeda Galaxy.jpg". Though MCX is enabled and used to control other settings, MCX is disabled for the Desktop. What is keeping the users' desktop background from being preserved? How can I fix it?

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• wireless dropping out

  - by Sam

  My wireless network connection is dropping out and its driving me nuts. It is weird because it happens at totally random intervals and other devices work while my computer has been dropped. Both my USB dongle and wifi card randomly disconnect from the router and I am unable to connect for a couple of minutes. It is especially irritating because two different adapters are failing at the same time, sounds like a software problem to me, but where? Both my laptop and iPod remain connected when the connection drops. What on earth is happening? I doubt its the router because the other devices would disconnect as well.

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• Strange RDP / Remote Desktop problem

  - by John Landheer

  I'll try to be as specific as I can be: Server is running SBS 2008 R2 (with all updates) Server is connected to the internet Server has 2 NIC's, one is disabled Server is running RDP Service (accessible directly from the internet, I know, not as secure as it should be) Computers A and B are on the same local net. Computers A and B are both Windows 7. Users X and Y are both admins on the server Computer A can connect as user X to the server with mstsc Computer A can connect as user Y to the server with mstsc Computer B can connect as user X to the server with mstsc computer B CANNOT connect as user Y to the server with mstsc! The last point is the problem, I get an authentication error. This used to work flawlessly for the last year. The server and desktops have been rebooted. I find it very strange....

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• Keyboard not responding during boot

  - by Peri

  My keyboard just stopped responding during boot. So I cannot go to BIOS or select system which I want to start. It is USB keyboard and it was working before. I borrowed PS2 keyboard and it also isn't working during boot. Lately I have been having problems with hard disk. Once every 2-5 minutes LED was on for 30 seconds and win7 wasn't responsive. I connected disk to another controller on motherboard and seems it is working now. All that suggests that to me that that motherboard is broken. What can I check? Or maybe you have some other suggestions?

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• MySQL 5.0 Unavailable but still working every monday morning

  - by user1578031

  So I have a MySQL server with 4-5 databases and every monday morning, I can't login with PHPmyAdmin or the cmd line tools or options and the funny thing is the connection can be made later in the day around 3:30 - 4PM. I can't replicate the issues on any dev boxes and cant upgrade to 5.5 for a number of reasons. I want to try and poll the sql databases with a simple script and just connect to it and then disconnect. I'm not very good with SQL but would like to know if anyone could help with a script which I can automate to run sunday every 30mins or so, to see if the issue can be stopped by the database being connected to over the very quiet period of sunday... After this im out of ideas and have to wait for the HW/SW refresh to get 5.5 on there...

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• Monitor status while using VNC

  - by kumar

  So after connecting to a vnc server via vnc viewer to my desktop (remotely), Is it possible to know whether the monitor connected to the CPU is switched ON or not. Simply put, from command prompt how do you know whether monitor is ON/OFF from command line. Here, Basically I am bit worried about privacy as my monitor can be viewed by anyone while accessed remotely. Any solution? Obviously there is a option to switch off the monitor while starting the vnc server at remote side but I am looking for a better solution to control monitor(possible??) remotely. Thanks!

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• Installing raid controller forces reinstall of Windows Server 2008

  - by Tyler

  So, I've tried two different RAID controllers that have external SATA connections on my Server 2008 machine. I can install the hardware, boot into Windows, install the drivers and reboot again. No problems. However, as soon as I try to use eSATA-connected drives and reboot something happens to the Windows install and I can no longer boot into Windows. I tried repairing from the command line, and the end result is that repair console tells me I have 0 Windows installations (?). I end up having no choice but to reinstall Windows to get back on track. I must be doing something fundamentally wrong here, but I don't know what :(

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• Filemaker Server Not Installing and Windows Problems

  - by Shelly

  When I tried installing Filemaker Server 8.0 on Windows 2003 Server Standard Edition R2, an error message pop up that states: MMC has detected an error in a snap-in. It is recommended that you shut down and restart MMC. After this message pops up, Filemaker Server freezes. I'm also having problems with openssl and running executable files, but am not sure if the 2 are related. Error message for openssl states: Openssl.exe encountered a problem and needed to close. In one of the computers connected to the network running this same Server 2003 R2, when I tried double-clicking on Dr. Web antivirus to do a scan, nothing happens. I have done this many times before reinstalling the server, and it never gave trouble before this. Any help given is appreciated.

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• postfix smtps issue

  - by DavidC

  Im currently experiencing the following issue with postfix over ssl (smtps) Apr 7 13:43:55 server88-208-248-147 postfix/smtpd[5777]: connect from xxxxxxxxxxxxxxx[xxx.xxx.xxx.xxx] Apr 7 13:45:09 server88-208-248-147 postfix/smtpd[5777]: lost connection after UNKNOWN from xxxxxxxxxxxxxxx[xxx.xxx.xxx.xxx] Apr 7 13:45:09 server88-208-248-147 postfix/smtpd[5777]: disconnect from xxxxxxxxxxxxxxx[xxx.xxx.xxx.xxx] my main.cf is as follows: smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_use_tls = yes smtp_use_tls = yes smtpd_tls_auth_only = no smtpd_tls_CAfile = /etc/postfix/caroot.crt smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_tls_loglevel = 1 when accessing smtp and running start tls i get the following: # telnet xxxxxxxxxxxxxxx 25 Trying xxxxxxxxxxxxxxx... Connected to xxxxxxxxxxxxxxx . Escape character is '^]'. 220 xxxxxxxxxxxxxxx ESMTP Postfix ehlo localhost 250-xxxxxxxxxxxxxxx 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN STARTTLS 220 2.0.0 Ready to start TLS please help as i'm lost of places to look now. os is Ubuntu 10.4 and the SSL is a wildcard SSL, imap/pop and apache work flawlessly with the same certificate.

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• Setting up virtual network in VMware workstation

  - by Saif Bechan

  I am playing around with VMware workstation and am trying to set up a small virtual network. I am having a little trouble with this I hope somebody can help me out. I want to have all the different virtual machines to have different internal IP adresses so I can ping them SSH etc, from within my windows machine. I am directly connected to the internet without a router, so using a bridged connection does not seem to work. The other options NAT and host-only do not seem to work also. I think i need to create a new adapter. I am testing this out with a virtual image of linux debain 5.0 lenny. I have WMware Workstation 7 with virtual network editor. Can anyone guide me in the right direction.

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