Search Results

Search found 12472 results on 499 pages for 'remote debugging'.

Page 420/499 | < Previous Page | 416 417 418 419 420 421 422 423 424 425 426 427  | Next Page >

• Can't connect to MS SQL Server database using SSMS

  - by Charles

  I have a database on line with Godaddy (who uses SQL Server 2005). They provide basic management tools, but tell you that for more advanced tools you can connect directly using SSMS. I followed their instructions to ensure my online database will accept remote connections, and can apparently log in using SSMS with success (after giving my hostname and access data). However: Now from in SSMS, when attempting to expand the "Databases" folder tree, I get the following error: Failed to retrieve data for this request. (Microsoft.SqlServer.Management.Sdk.Sfc) An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo) The server principal "cmitchell" is not able to access the database "3pointdb" under the current security context. (Microsoft SQL Server, Error: 916) The irony is that 3pointdb isn't my database. It is just another in a long list of databases that show up when I access my Godaddy backend. From SSMS, I selected the default database to be the name of my database, which it did locate on the list when I browsed. Still same error message. It is trying to connect to a database that isn't mine! :( Godaddy support, after a bit of testing, said the problem isn't on their end. it's on mine. – Charles

  Read the article

• Why can a local root turn into any LDAP user?

  - by Daniel Gollás

  I know this has been asked here before, but I am not satisfied with the answers and don't know if it's ok to revive and hijack an older question. We have workstations that authenticate users on an LDAP server. However, the local root user can su into any LDAP user without needing a password. From my perspective this sounds like a huge security problem that I would hope could be avoided at the server level. I can imagine the following scenario where a user can impersonate another and don't know how to prevent it: UserA has limited permissions, but can log into a company workstation using their LDAP password. They can cat /etc/ldap.conf and figure out the LDAP server's address and can ifconfig to check out their own IP address. (This is just an example of how to get the LDAP address, I don't think that is usually a secret and obscurity is not hard to overcome) UserA takes out their own personal laptop, configures authentication and network interfaces to match the company workstation and plugs in the network cable from the workstation to their laptop, boots and logs in as local root (it's his laptop, so he has local root) As root, they su into any other user on LDAP that may or may not have more permissions (without needing a password!), but at the very least, they can impersonate that user without any problem. The other answers on here say that this is normal UNIX behavior, but it sounds really insecure. Can the impersonated user act as that user on an NFS mount for example? (the laptop even has the same IP address). I know they won't be able to act as root on a remote machine, but they can still be any other user they want! There must be a way to prevent this on the LDAP server level right? Or maybe at the NFS server level? Is there some part of the process that I'm missing that actually prevents this? Thanks!!

  Read the article

• Are there any wireless webcams/cameras that Windows will recognize as a capture device?

  - by Keithius

  I'd like to have a webcam in a different room from my computer, and the distance means USB is out of the question. I know there are many wireless cameras, but what I can't seem to find out is if any of them would be recognized by Windows as a capture device (just like a locally connected USB webcam). Most of the wireless cameras I can find (e.g., D-Link DCS920; Cisco-Linksys WVC54GCA, etc.) can all stream video directly from the camera itself, which is fine if you're using the camera as a "security" camera (for private use only), but not for other uses (say, sending the video to an online video streaming service, e.g., Ustream). It seems like this should be possible; after all, wireless (WiFi) printers with scanners are recognized by Windows. Are there any wireless (WiFi) cameras out there that would be recognized by Windows as a capture device in the same way as a USB webcam would? Alternatively, a camera that's not wireless (e.g., connects via Ethernet) would do the trick too - but I imagine if anyone is going to make a remote camera like this, they'd go the extra step and make it wireless, too.

  Read the article

• Web SMTP Server(foo.com) will not send mail to exchange server which is also(foo.com)

  - by Atom

  I think I understand this problem fully, but I do not know how to approach it or where to go in terms of troubleshooting. I've got my one domain http://foo.com that runs a Zen Cart installation that needs to be able to send emails to users(order confirmation, password reset). This works fine to send to any other domain BUT foo.com. I'm running a locally hosted exchange server that is foo.com, and we can send and receive email just fine. If I run tail -f /usr/local/psa/var/log/maillog I recieve this error: Apr 1 10:08:51 foo qmail-local-handlers[25824]: Handlers Filter before-local for qmail started ... Apr 1 10:08:51 foo qmail-local-handlers[25824]: from= Apr 1 10:08:51 foo qmail-local-handlers[25824]: [email protected] Apr 1 10:08:51 foo qmail-local-handlers[25824]: cannot reinject message to '[email protected]' Apr 1 10:08:51 foo qmail: 1270141731.583139 delivery 32410: failure: This_address_no_longer_accepts_mail./ Apr 1 10:08:51 foo qmail: 1270141731.584098 status: local 0/10 remote 0/20 I understand that the foo.com SMTP service doesn't have any account but the one that is used to authenticate mail being sent, so of course, I understand why it's saying 'this address no longer accepts mail'. My question is, how can I get the foo.com(web) SMTP service to handle emails meant for my exchange server([email protected]) or how do I handle the mail that needs to be sent to our exchange server? Is this something to do with MX records? Thanks in advance A

  Read the article

• RemoteApp .rdp embed creds?

  - by Chris_K

  Windows 2008 R2 server running Remote Desktop Services (what we used to call Terminal Services back in the olden days). This server is the entry point into a hosted application -- you could call it Software as a Service I suppose. We have 3rd party clients connecting to use it. Using RemoteApp Manager to build RemoteApp .rdp shortcuts to distribute to client workstations. These workstations are not in the same domain as the RDS server. There is no trust relationship between domains (nor will there be). There is a tightly controlled site to site VPN between workstations and the RDS server, we're quite confident we have access to the server locked down. The remoteApp being run is an ERP application with its own authentication scheme. The issue? I'm trying to avoid the need to create AD logins for every end user when connecting to the RemoteApp server. In fact, since we're doing a remoteApp and they have to authenticate to that app, I'd rather just not prompt them at all for AD creds. I certainly don't want them caught up in managing AD passwords (and periodic expirations) for accounts they only use to get to their ERP login. However, I can't figure out how to embed AD creds in a RemoteApp .rdp file. I don't really want to turn off all authentication on the RDS server at that level. Any good options? My goal is to make this as seamless as possible for the end-users. Clarifying questions are welcome.

  Read the article

• Windows Server 2003 SBS domain in multiple sites

  - by E3 Group

  We have about 25 employees in our current office and are looking to open up another office in another capital city housing about 15 employees. In our current office, we are running a domain hosted by a 2003 SBS server and I've been tasked by the boss to expand our infrastructure to the new office in the cheapest way possible (cheapest way in the short run that is, because my boss doesn't think more than 6 months ahead). So I'm looking to get a second hand server and have it run Server 2003 Std with exchange server 2003. These are the things that it needs to do: Replicate shared folders that are hosted in the parent LAN. Deliver emails hosted in the parent Exchange Server Somehow link up with the parent domain controller and push the AD to the remote site I'm pretty sure 3 is impossible but the DC would be available if a VPN connection is present, right? On that note, would I be looking at hardware VPN connections? I'm not sure how to deploy the new site as this is my first time doing it and i'm making it especially difficult for myself, seeing as the AD and DC is on an SBS server. Would I first start by establishing a VPN connection and then joining the new server to the domain? Will things 'just work' if I install exchange onto the new server and point outlooks to it? and how would I be able to replicate shared folders?

  Read the article

• Linux (DUP!) ping packages

  - by Darkmage

  i cant seem t figure out what is going on here. The Linux machine I am using is running as a VM on a Win7 machine using Virtual Box running as a service. If i ping the win7 Host i get ok result. root@Virtual-Box:/home/glennwiz# ping -c 100000 -s 10 -i 0.02 192.168.1.100 PING 192.168.1.100 (192.168.1.100) 10(38) bytes of data. 18 bytes from 192.168.1.100: icmp_seq=1 ttl=128 time=1.78 ms 18 bytes from 192.168.1.100: icmp_seq=2 ttl=128 time=1.68 ms if i ping localhost im ok root@Virtual-Box:/home/glennwiz# ping -c 100000 -s 10 -i 0.02 localhost PING localhost (127.0.0.1) 10(38) bytes of data. 18 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.255 ms 18 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.221 ms but if i ping gateway i get DUP packets root@Virtual-Box:/home/glennwiz# ping -c 100000 -s 10 -i 0.02 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 10(38) bytes of data. 18 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=1.27 ms 18 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=1.46 ms (DUP!) 18 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=22.1 ms 18 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=22.4 ms (DUP!) if i ping other machine on same LAN i stil get dups. pinging remote hosts also gives (DUP!) result root@Virtual-Box:/home/glennwiz# ping -c 100000 -s 10 -i 0.02 www.vg.no PING www.vg.no (195.88.55.16) 10(38) bytes of data. 18 bytes from www.vg.no (195.88.55.16): icmp_seq=1 ttl=245 time=10.0 ms 18 bytes from www.vg.no (195.88.55.16): icmp_seq=1 ttl=245 time=10.3 ms (DUP!) 18 bytes from www.vg.no (195.88.55.16): icmp_seq=2 ttl=245 time=10.3 ms 18 bytes from www.vg.no (195.88.55.16): icmp_seq=2 ttl=245 time=10.6 ms (DUP!)

  Read the article

• Can OpenVPN invoke DHCP Client?

  - by Ency

  I have got working VPN connection through openvpn, but I would like to use also my DHCP server and not openvpn's push feature. Currently everything works fine, but I have to manually start dhcp client, eg. dhclient tap0 and I get IP and other important stuff from my DHCP, is there any directive which start DHCP Client when connection is established? There is my client's config: remote there.is.server.com float dev tap tls-client #pull port 1194 proto tcp-client persist-tun dev tap0 #ifconfig 192.168.69.201 255.255.255.0 #route-up "dhclient tap0" #dhcp-renew ifconfig 0.0.0.0 255.255.255.0 ifconfig-noexec ifconfig-nowarn ca /etc/openvpn/ca.crt cert /etc/openvpn/encyNtb_openvpn_client.crt key /etc/openvpn/encyNtb_openvpn_client.key dh /etc/openvpn/dh-openvpn.dh ping 10 ping-restart 120 comp-lzo verb 5 log-append /var/log/openvpn.log Here comes server's config: mode server tls-server dev tap0 local servers.ip.here port 1194 proto tcp-server server-bridge # Allow comunication between clients client-to-client # Allowing duplicate users per one certificate duplicate-cn # CA Certificate, VPN Server Certificate, key, DH and Revocation list ca /etc/ssl/CA/certs/ca.crt cert /etc/ssl/CA/certs/openvpn_server.crt key /etc/ssl/CA/private/openvpn_server.key dh /etc/ssl/CA/dh/dh-openvpn.dh crl-verify /etc/ssl/CA/crl.pem # When no response is recieved within 120seconds, client is disconected keepalive 10 60 persist-tun persist-key user openvpn group openvpn # Log and Connected clients file log-append /var/log/openvpn verb 3 status /var/run/openvpn/vpn.status 10 # Compression comp-lzo #Push data to client push "route-gateway 192.168.69.1" push "redirect-gateway def1"

  Read the article

• New AD-DC in a new Site is refusing cross-site IPv4 connections

  - by sysadmin1138

  We just added a new Server 2008 (sp2) Domain Controller in a new Site, our first such config. It's over a VPN gateway WAN (10Mbit). Unfortunately it is displaying a strange network symptom. Connections to the SMB ports (TCP/139 and TCP/445) are being actively refused... if the connection is coming in on pure IPv4. If the incoming connection is coming by way of the 6to4 tunnel those connections establish and work just fine. It isn't the Firewall, since this behavior can be replicated with the firewall turned off. Also, it's actually issuing RST packets to connection attempts; something that only happens with a Windows Firewall if there is a service behind a port and the service itself denies access. I doubt it's some firewall device on the wire, since the server this one replaced was running Samba and access to it from our main network functioned just fine. I'm thinking it might have something to do with the Subnet lists in AD Sites & Services, but I'm not sure. We haven't put any IPv6 addresses in there, just v4, and it's the v4 connections that are being denied. Unfortunately, I can't figure this out. We need to be able to talk to this DC from the main campus. Is there some kind of site-based SMB-level filtering going on? I can talk to the DC's on campus just fine, but that's over that v6 tunnel. I don't have access to a regular machine on that remote subnet, which limits my ability to test.

  Read the article

• Game login server

  - by Tar

  I have a setup like this: A website, with a database. This database houses accounts and all details. Password hashes/salts/join dates/etc. What I want to do is to be able to use this same database for our game database. The game will be on servers in the United States while the web server and web server database is in the Netherlands. I know there is a big problem with using remote SQL and we really don't want to do that as operation of the website is just as vital as operation of the game server. We had one solution that involved sending account details to another database hosted on the same server that the gameserver is hosted on, but that was incredibly unreliable because if the website was down, no new people could register to play the game. The solution that we want is to have a log in server that is used to check credentials for everything. Is this possible/viable and could anyone point in the right direction? So, in summation: 2 game servers 1 web servers 1 central database used for authorization. The game accounts and website accounts need to be one in the same.

  Read the article

• Rsync when run in cron doesnt work. Rsync between Mac Os x Server and Linux Centos

  - by Brady

  I have a working rsync setup between Mac OS X Server and Linux Centos when run manually in a terminal. I enter the rsync command, it asks for the password, I enter it and off it goes, runs and completes. Now I know thats working I set out to fully automate it via cron. First off I create an SSH authorized key by running this command on the Mac server: ssh-keygen -t dsa -b 1024 -f /Users/admin/Documents/Backup/rsync-key Entering the password and then confirming it. I then copy the rsync-key.pub file accross to the linux server and place in the rsync user .ssh folder and rename to authorized_keys: /home/philosophy/.ssh/authorized_keys I then make sure that the authorized_keys file is chmod 600 in the folder chmod 700. I then setup a shell script for cron to run: #!/bin/bash RSYNC=/usr/bin/rsync SSH=/usr/bin/ssh KEY=/Users/admin/Documents/Backup/rsync-key RUSER=philosophy RHOST=example.com RPATH=data/ LPATH="/Volumes/G Technology G Speed eS/Backup" $RSYNC -avz --delete --progress -e "$SSH -i $KEY" "$LPATH" $RUSER@$RHOST:$RPATH Then give the shell file execute permissions and then add the following to the crontab using crontab -e: 29 12 * * * /Users/admin/Documents/Backup/backup.sh I check my crontab log file after the above command should run and I get this in the log and nothing else: Feb 21 12:29:00 fileserver /usr/sbin/cron[80598]: (admin) CMD (/Users/admin/Documents/Backup/backup.sh) So I asume everything has run as it should. But when I check the remote server no files have been copied accross. If I run the backup.sh file in a terminal as normal it still prompts for a password but this time its through the Mac Key chain system rather than typing into the console window. With the Mac Key Chain I can set it to save the password so that it doesnt ask for it again but Im sure when run with cron this password isnt picked up. This is where I'm asuming where rsync in cron is failing because it needs a password to connect but I thought the whole idea of making the SSH keys was to prevent the use of a password. Have I missed a step or done something wrong here? Thanks Scott

  Read the article

• Domain joined computer unable to access servers through VPN

  - by kscott

  Our servers are in a virtual off site hosting center, our office has a vpn connection to the data center, but for reasons I don't understand we also have to connect to the Citrix Access Gateway (CAG) client in order to access the servers. I am a programmer with rather limited ops knowledge including a weak grasp of networking and terminology. Bear with me. I was just given a new laptop, which is a 64 bit Windows 7 system unlike my previous 32 bit Windows XP desktop which was able to connect without issue. My laptop has been joined to the domain so that I login with my AD credentials, I am able to connect to the CAG and get authenticated, and after doing this I can ping our servers and they resolve to the correct internal IP addresses, but I am unable to use remote desktop to the servers, connect to SQL servers through my local SQL Management Studio, navigate to them through the file system, or view any of our internal intranet websites. All of which I was able to do previously. I have tried turning off my Windows firewall and the problem remains, the DNS servers are set to the correct IPs of our domain controllers, and the ops guys here are a little stumped. Does any one have any suggestions?

  Read the article

• OpenVPN connected but not internet access on the client

  - by Stefan

  I've setup OpenVPN following this tutorial, and everything works fine except that I don't have an internet connection on the client while connected to VPN. http://www.howtoforge.com/internet-and-lan-over-vpn-using-openvpn-linux-server-windows-linux-clients-works-for-gaming-and-through-firewalls My VPS server config is as follows (Ubuntu): dev tun proto udp port 1194 ca /etc/openvpn/easy-rsa/keys/ca.crt cert /etc/openvpn/easy-rsa/keys/server.crt key /etc/openvpn/easy-rsa/keys/server.key dh /etc/openvpn/easy-rsa/keys/dh1024.pem user nobody group nogroup server 10.8.0.0 255.255.255.0 persist-key persist-tun status /var/log/openvpn-status.log verb 3 client-to-client push "redirect-gateway local def1" #set the dns servers push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" log-append /var/log/openvpn comp-lzo plugin /usr/lib/openvpn/openvpn-auth-pam.so common-auth My client config is as follows (Windows 7): dev tun client proto udp remote XXX.XXX.XXX.XXX 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert stefan.crt key stefan.key comp-lzo verb 3 auth-user-pass redirect-gateway local def1 I've turned off the firewall on the server for testing purposes (it doesn't help), and tried both wired and wireless connecting on the client. I've tried many Google results... but nothing seems to help. Can you help me? Thanks so far...

  Read the article

• How do I get "Back to My Mac" (using MobileMe) from Windows?

  - by benzado

  I have a MobileMe subscription and a Mac at home with "Back to My Mac" enabled. When I'm away from home, this service lets me use another Mac to connect to my Mac back home and access file sharing, screen sharing, etc. As far as I know, the service doesn't use any proprietary protocols, so in theory I should also be able to get "Back to My Mac" from a Windows PC. This MacWorld article explains how it works. Basically, it uses Wide-Area Bonjour to give your Mac a domain name like hostname.username.members.mac.com. Remote computers can find your Mac using that address, then connect to it using a private VPN. The "Wide Area Bonjour" part seems to make it a little more complicated than simply a regular domain name, though. Note that I'm not interested in using the methods described by LifeHacker, which doesn't use the MobileMe service at all. I don't want to use a totally different dynamic DNS service. I'd like to use the one I'm already paying for, or at least find out why that's not possible from Windows. Also, my primary problem is finding a network route back to my mac... once I've got that I know how to enable services so that Windows can talk to it. UPDATE: Based on some additional research, it appears that Apple is only assigning IPv6 addresses to the hostname.username.members.mac.com names. So any solution will require enabling IPv6 support on Windows, if possible.

  Read the article

• Mapped networkdrive on logout

  - by Robuust

  I'm using a script to keep a mapped networkconnection alive, but ofcourse the mapped connection is gone when I logout. The point is now, that I'm running this on Windows Server 2008 R2, where I use remote desktop to login on the administrator account. However, it should remain logged in and not remove the mapped connection as this script takes care of not logging out on MS office 365 sharepoint. Is there a way to keep the mapped networklocation (L:) available after logout? So the script can run to remain the connection? # Create an IE Object and navigate to my SharePoint Site $ie = New-Object -ComObject InternetExplorer.Application $ie.navigate('https://xxx.sharepoint.com/') # Don't need the object anymore, so let's close it to free up some memory $ie.Quit() # Just in case there was a problem with the web client service # I am going to stop and start it, you could potentially remove this # part if you want. I like it just because it takes out a step of # troubleshooting if I'm having problems. Stop-Service WebClient Start-Service WebClient # We are going to set the $Drive variable here, this is just # going to tell the command what drive letter to map you can # change this to whatever you want (if you change it to a # drive that is already mapped it will overwrite it, so be careful. $Drive = "L:" # You can change the drive destiniation to whatever you want, # it has to be a document library or folder of course. $DrvDest = "https://xxx.sharepoint.com/files/" # Here is where we create the object to map the network drive and # then map the network drive $net = New-Object -ComObject WScript.Network; $net.mapnetworkdrive($Drive,$DrvDest) # That is the end of the script, now schedule this with task # scheduler and every so often and you should be set.

  Read the article

• Adding port forwardings programmatically on a ControlMaster SSH session

  - by aef

  I just found out about the ControlMaster/ControlPath feature of OpenSSH, which allows you to use a single SSH connection to run multiple terminals. As I often use SSH to use port forwarding to get encrypted and authenticated VNC sessions I instantly recognized that you can't add port forwardings to a remote server to which you already have an established connection. This sucks. Sometimes later I found out that you can circumvent this limitation by typing ~C in a running SSH terminal session. This opens up a command-line which allows you to add or remove port forwardings. My quesion now is: How can I add port forwardings on an existing SSH session which is using the ControlMaster/ControlPath feature, without the need to have access to a terminal session inside that SSH session. I need this to enable my script which starts a secure tunneled VNC connection for me to add and later remove its port forwardings. (I know I could use a terminal multiplexer such as GNU Screen or tmux, actually I'm doing this already. But I like the idea of using just one SSH session for serveral reasons.)

  Read the article

• cannot connect to vpn server (error 721)

  - by callmeblessed

  I got 2 internet connections in my computer. One is using 3.5G HSDPA modem (vodafone huawei e220) and the other using mobile phone (cdma zte c261). Both are using different ISP and i have both. at the moment, i can connect to my office vpn using the HSDPA modem one. But when i tried to use cdma modem (dial up - mobile phone modem), i am just able to get "verifying username and password" and then after a few minutes it display error : Error 721 The Remote Computer didn't respond. I tried to ping into my office ip address, it got good result but still cannot connect to the vpn. I tried to turn off all my firewall (i'm using commodo) and has no response as well. In my cdma mobile phone modem Network connections I tried to allow iNternet connection sharing as well ... and turn on all Internet Protocol TCP/IP, File & Printer Sharing & Client for microsoft networks. But all of my effort has no effect. How to fix this problem ? note: my office using windows vpn as well. thank you .

  Read the article

• how to automatically mount ~/Private using ecryptfs when logging in via ssh pubkey

  - by andreash

  Raionale: I want to be able to automatically make backups to a remote machine, which will be encrypted with ecryptfs. The title says it all: I set up ecryptfs-utils on my Debian Squeeze box, and set up one user to use it via ecryptfs-setup-private. When I log in via SSH using password authentication, the ~/Private directory automatically gets mounted. How can I achieve that ~/Private also automatically gets mounted when logging in via SSH using public key authentication? Obviously, the best solution would be if ecryptfs could somehow 'use' the SSH public key to en/decrypt the data (I know that then using the user's password would not be able to en/decrypt the data any more; this would be acceptable). Probably, this will not work. So perhaps somehow call ecryptfs-mount-private via ssh before logging in via public key? Probably, then I would need to somehow pipe the passphrase through the SSH connection, right? So I would need to store it on the source machine's file system. Not nice either. Any other ideas?

  Read the article

• Apache2 process stuck at 100% cpu, CLOSE_WAIT socket lingering

  - by mmazing

  I've troubleshooted the heck out of this today, and I can't seem to find any information on how to determine what is happening exactly. Basically, on my development server, another developer is causing CLOSE_WAIT connections that eat up one or more apache2 processes for several hours if I don't restart apache2. strace on any of the processes yields no information, only that it was able to attach. mod_proxy is not enabled. KeepAlive is on, KeepAliveTimeout is 15 seconds, MaxKeepAliveRequests is 100. From what I've been reading, this may or may not be an apache issue at all, just that that's how CLOSE_WAIT works (the server is waiting for a FIN packet to close the connection). I just can't believe that a server would be crippled so easily by not receiving a packet from a remote host telling it to close the connection. Especially without any intervention for well over an hour. Any tips? I'm about to pull my hair out. Edit : Also, there are no unusual entries in any apache log files. Edit 2: lsof -i shows only a single CLOSE_WAIT per hanging process. (That's what has been bothering me about this, as most other discussions talk about many CLOSE_WAIT connections, while I only have one per process.) The nature of the code that is running (php) doesn't really lend itself to closing open connections and whatnot. I can run the same code that he is executing with the same session data, and not result in a hanging process.

  Read the article

• Public-to-Public IPSec tunnel: NAT confusion

  - by WuckaChucka

  I know this is possible -- and apparently fairly common with larger companies that don't/can't route private addresses for overlap reasons -- but I can't wrap my head around how to get this to work. I'm playing around with pfSense, Vyatta and a Cisco 5505 right now, hardware-wise. So here's my setup: WEST: Vyatta outside: 10.0.0.254/24 inside: 172.16.0.1/24 machine a: 172.16.0.200/24 EAST: Cisco 5505 outside: 10.0.0.210/24 inside: 192.168.10.1 machine b (webserver): 192.168.10.2 So what we're trying to do is this: route traffic across the tunnel from machine A to machine B without using private addresses. i.e. 172.16.0.200 makes a TCP request to 10.0.0.210:80, and as far as EAST is concerned, it sees a src IP of 10.0.0.254. On WEST, I have your typical many-to-one Source NAT to translate 172.16.0.0/24 to 10.0.0.254 and that's confirmed to be working. Also on WEST, I have the following IPSec config: Local IP: 10.0.0.254 Peer IP: 10.0.0.210 local subnet: 10.0.0.254/32 remote subnet: 10.0.0.210/32 I have the reversed configuration on EAST. What happens when I make a request from machine A to 10.0.0.210:80 is that the SNAT translates the private address of machine A to 10.0.0.254 and it's routed out (and discarded at the other end) without establishing the tunnel. What I'm assuming is happening is that the inside interface on WEST receives a packet from 172.16.0.200 and since this doesn't match the local subnet defined in the tunnel configuration, it's not processed by the IPSec engine and the tunnel is not established. How do you make this work? Seems like a chicken and egg thing with the NAT and IPSec and I just can't wrap my head around how this can be done: can I say, "if a packet is received on the inside interface with a destination of 10.0.0.210, translate it to 10.0.0.254 before the IPSec engine inspects it"?

  Read the article

• Migrate Domain from Server 2008 R2 to Small Business Server 2011

  - by josecortesp

  I'm looking for some advice here, rather than the big how to do it I'm looking for what do to I have this home server, quad core and 4 GB of ram (I really can't afford more right now). With a Windows Serve 2008 R2 With ActiveDirectory and a Hyper-V-Virtual machine with SharePoint, TFS and a couple of more thigs. I have a least 10 remote users, all of them joined a Hamachi VPN (working great by the way). But I want to migrate that to a Small Business Server 2011 Standard. I tried to make a VM to join the domain and then promote that VM, back up it and then format the physical server, boot up the VM, Promote the Phisical and then erase the VM, but I can't do that because of SBS requiring a least 4 GB of ram to install (so I can't give all the 4 GB of physical ram to a VM). I was thinking in using a laptop (All the clients are laptop) as a temporal server, join the domain, promote it, then format the server and install SBS on the server and do all again. I really need some advice. Thanks in advance. BTW, I know that the software I'm using is kindda expensive, and I can't afford more hardware. I have access to MS downloads by a University partnership so I have all this software for free.

  Read the article

• How to configure VirtualBox server for performance at home

  - by BluJai

  I currently have two physical Ubuntu Server 10.10 servers at home: one serves as our firewall/router/DHCP/VPN server and the other performs double-duty as a file server and a VirtualBox host for an Ubuntu Desktop 10.10 machine which I use from remote connections (via NoMachine) for many thin-client purposes which are irrelevant to my question. What I'd like to accomplish is to consolidate the two physical machines into one which is a dedicated VirtualBox host (most likely running Ubuntu Server 10.10). Note that I'd like to stick with VirtualBox (if possible) because I'm most comfortable with it and use it on a daily basis at both home and work. Specifically, I plan to have one VM set up as file server, another as the firewall/router/DHCP/VPN (or possibly split those a bit) and a third, which is the only current VM (already VirtualBox), which is the thin-client host. My question comes down to performance and/or recommendations about the file server VM. The file server hosts about 6 terabytes of data across 4 drives. What I'd like to do is use raw disk access from the VM directly to the existing disks. However, I'm curious what performance advantage/disadvantage that would have as compared to using shared folders from the VM host and basically just have the whole drive served as a shared folder to the VM which would then serve it to the other machines on the network. I don't know if virtual disks would even work in this scenario and I certainly wouldn't want a drive to be filled with just a single file which is 1.5 TB (disk image). To add understanding of context, but not to get additional advice, I want to virtualize these machines because I intend to regularly use the snapshot capabilities of VirtualBox for the system disks (which will be virtual drives) of the VMs and I have some physical space/power needs to address (as I mentioned, this is at home).

  Read the article

• Laptop authentication/logon via accelerometer tilt, flip, and twist

  - by wonsungi

  Looking for another application/technology: A number of years ago, I read about a novel way to authenticate and log on to a laptop. The user simply had to hold the laptop in the air and execute a simple series of tilts and flips to the laptop. By logging accelerometer data, this creates a unique signature for the user. Even if an attacker watched and repeated the exact same motions, the attacker could not replicate the user's movements closely enough. I am looking for information about this technology again, but I can't find anything. It may have been an actual feature on a laptop, or it may have just been a research project. I think I read about it in a magazine like Wired. Does anyone have more information about authentication via unique accelerometer signatures? Here are the closest articles I have been able to find: Knock-based commands for your Linux laptop Shake Well Before Use: Authentication Based on Accelerometer Data[PDF] Inferring Identity using Accelerometers in Television Remote Controls User Evaluation of Lightweight User Authentication with a Single Tri-Axis Accelerometer Identifying Users of Portable Devices from Gait Pattern with Accelerometers[PDF] 3D Signature Biometrics Using Curvature Moments[PDF] MoViSign: A novel authentication mechanism using mobile virtual signatures

  Read the article

• Connection timeout when trying to SSH

  - by dan

  The other day I tried to connect to my remote server via SSH as i always have. But now when I try to connect it just times out after about 60 seconds. I run service ssh start Which tells me that Job is already running: ssh. I then ran $netstat -tnlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 1972/dovecot tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 1972/dovecot tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 2030/mysqld tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 1972/dovecot tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 1972/dovecot tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN 2157/perl tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 3028/sshd tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 2273/master tcp6 0 0 :::80 :::* LISTEN 2618/apache2 tcp6 0 0 :::21 :::* LISTEN 2291/proftpd: (acce tcp6 0 0 :::22 :::* LISTEN 3028/sshd I am able to access subdomains on my site, and FTP, but don't have the ability to SSH or even ping remotely. Any thoughts?

  Read the article

• Understanding mail failure notices, 554

  - by goran

  I'd like to confirm the meaining of a mail failure notice. Here's the message Hi. This is the qmail-send program at mydomain.com I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. <[email protected]>: 1.2.3.4 does not like recipient. Remote host said: 554 <[email protected]>: Relay access denied Giving up on 1.2.3.4 The way I understand this is, that 1.2.3.4 is not setup to receive mail for this domain. dig domain.com MX shows ;; ANSWER SECTION: domain.com. 6245 IN MX 10 mail.domain.com. domain.com. 6245 IN MX 20 mx.anotherdomain.com. (1.2.3.4 is mx.anotherdomain.com.). The puzzling part is that I have reports that messages sent from gmail get delivered to this address. P.S. Is this a proper question for serverfault?

  Read the article

< Previous Page | 416 417 418 419 420 421 422 423 424 425 426 427  | Next Page >