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• RRAS VPN on windows 2k3 AD, can access rras server only.

  - by nopsax

  I'm setting up a test lab and here is the current configuration: 192.168.86.201 - a windows 2003 machine acting as PDC with AD/DNS/DHCP/WINS. 192.168.86.62 - windows 2003 machine is the RRAS server with IAS, also a file/print server. 192.168.86.6 - gateway/router to internet 192.168.86.21 - Windows XP Workstation Everything works on the internal network, File/Print/AD etc. Whenever a user connects via vpn to the RRAS server remotely using their domain credentials, they are assigned an ip address from the 192.168.86.201 machine along with the wins server address etc. The vpn user can then ping/access resources on the RRAS server, but cannot ping/access resources of any other machines by name or ip. However, if I ping by name, it does resolve to the correct ip address, just no replies. I did notice that on the RRAS server the 'internal' interface gets an ip address of 192.168.86.75 when a remote user connects, and the remote user is assigned, for example 192.168.86.71 . The RRAS server responds on both the .62 and .75 ip addresses. The client also unchecks the 'use remote default gateway option'. Also, I tried connecting a laptop to the physical network, joining the domain, then going remote and dialing the connection before domain login, and everything seems to work, e.g. browse-able shares via network neighborhood. But I can't really join the domain remotely if I cannot access any other resources. I really need to monitor traffic to see whats happening to those packets but won't be able to until this weekend. Any help is appreciated, will provide whatever configurations are needed.

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• Problem with TL-R480T+ and static routes

  - by Globulopolis

  Hi! I've some question about this router. Before starting, some configurations, specified by my provider. Wan1 VPN IP - 192.168.172.84 Mask - 255.255.255.0 Gateway - 192.168.172.253 DNS - 195.110.6.7 Wan2 Dynamic IP DHCP - 168.120.1.34 Mask - 255.255.255.0 Router IP 192.168.1.1 Computer IP 192.168.1.7 Routes: route -p add 192.168.0.0 mask 255.255.0.0 192.168.172.253 route -p add 195.110.6.0 mask 255.255.254.0 192.168.172.253 route -p add 88.135.112.0 mask 255.255.240.0 192.168.172.253 route -p add 178.219.160.0 mask 255.255.240.0 192.168.172.253 For first provider I need to provide a routes. 'Cause router does not support different routes for different WAN interfaces I put them in "Static routes". But when I try to save them I've got an error: Destination IP address can not be set in a same subnet with the WAN or LAN IP address. If I change IP's to local like 192.168.x.x router tell me: Gateway must be set in a same subnet with WAN or LAN IP address. Changing mask on WAN1 interface to 255.255.0.0 doesn't help. Any ideas? PS! Or maybe I'm must email to TP-Link support?

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• NAT ports - how do they work?

  - by Davidoper

  I have the following network schema: Computer A: three nics: NIC 1 (eth0): dhcp, public internet NIC 2 (eth1): static 192.168.1.1, gateway for Computer B NIC 3 (eth2): static 192.168.2.1, gateway for Computer C Computer B: static 192.168.1.2, using gateway 192.168.1.1 (NIC 2). Computer C: static 192.168.2.2, using gateway 192.168.2.1 (NIC 3). So I applied this to get NAT working: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE Every computer can connect to the internet now. I have been applying rules to the main computer (Computer A), like dropping connections to some ports, e.g ssh: iptables -A INPUT -p tcp --dport 22 -j DROP But for instance, now I would like only allow connections for ports 20,21,22,53 and 80 in Computer C, and ignore the outside traffic if it's not related to those ports. The allowed connections should be FROM Computer C to outside, but not from outside to Computer C (I mean - Computer C is not hosting any HTTP or SSH, but it is going to use them as a client). I guess this sould be done like this: iptables -A OUTPUT -i eth2 -o eth0 -p tcp --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth2 -o eth0 -p tcp --sport 21 -m state --state ESTABLISHED -j ACCEPT The last rule (dropping any other traffic different from those) is at the end of the configuration, so -A should be working correctly. The thing is... it is not working. If I put the last rule like this: iptables -A FORWARD -i eth2 -o eth0 -j DROP It just drops everything and, for instance, port 21 (previously opened as you can see above) is not either working. Can you tell me what could I have done wrong? I have been struggling with this problem for some time and I am unable to solve it. Thanks!

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• Providing access to a Samba server for VPN clients

  - by Kamil Kisiel

  We have some Windows users that connect to our network via VPN from home. They need to be able to connect to our Samba server and access a mapped network drive just as they do as when they are on our LAN. The complication is that VPN clients are placed on a subnet other than our office LAN, and behind a firewall. What's the easiest way for me to allow them to still connect to the network share? The solutions I've currently seen involve setting up a WINS server for name resolution purposes and then tunnelling a bunch of the NetBIOS stuff through the firewall. However that means I'd have to set up the VPN DHCP server to hand out the WINS address, something I'm not even sure is possible on the Cisco hardware we have. I'm thinking there must be an easier way. Should I use an LMHOSTS file? Or just map by IP address? Also, I'm not terribly familiar with Windows networking, so which ports would I need to pass through my firewall in order to get the file sharing through?

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• Windows 7 Multi-NIC woes

  - by Eric

  I have Comcast business Internet here. It gives me 5 static IPs. Most of the machines in my house connect to a router like every other household. It has a 192.168.117.x subnet, DHCP Server, etc. and all is well. However, I have a second machine on MY desk that has a life Internet IP. Up until yesterday, this machine was running XP Pro. The primary NIC was manually set to 192.168.117.241 with no gateway, and the secondary NIC was manually set to 173.x.x.171 with a gateway of 173.x.x.174. This worked just fine for years. Yesterday I replaced that XP machine with a brand new Windows 7 x64 box. Again, I configured it the same way. The onboard NIC was given a static 192.168.117.x address with no gateway, and the secondary NIC was given a live Internet IP address with the proper router, etc. 2 Problems. First is that the internal network (192.168.117.x) is listed as a public network because there's no gateway, so that means no homegroup, no file sharing, none of that. And I can't change it from what I'm reading... The second is that the machine reports the "router" ip address as it's address, and not the address that it's supposed to. I'm ready to tear my hair out over this. Any ideas?

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• Setting up 802.1X wireless connection on OSX

  - by hizki

  I am an OSX user, I have Snow Leopard 10.6.5 and an updated AirPort (version 5.5.2). I am trying to connect to my university's wireless network, but it has a 802.1x security that I am having trouble defining... Here there are instructions for connecting with Windows XP, Windows 7 and Linux. Can someone please instruct me what should I do to set up this network on my Mac? I have had previous success in setting up this network, but I have no idea what I did that made it work. Since I updated my AirPort (to version 5.5.2) it worked only seldomly and very slowly... Before the update, even when it worked it never remembered my password. Update: I have already tried to create a new "location", removed all the 802.1x user profiles and all the remembered networks, and made sure the in the TCP/IP tab 'Configure IPv4' is set to "Using DHCP". I also moved /Library/Preferences/SystemConfiguration/preferences.plist to my desktop in attempt to force the system to create a new set of settings. Still I can define the connection to work.

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• Is there a small business router that shows bandwidth usage graphs in the admin panel?

  - by Robert Drake

  I support a large number of public libraries that are having their networks upgraded in response to a grant application. These libraries are generally home to between 6-15 computers and have little or no tech services either onsite or contracted remotely. In order to justify current and future purchases, a number of the libraries have requested routers that can provide bandwidth usage graphs that they can show to their managing boards. Is there a small business router that displays traffic graphs in the router administration web interface? The router needs to suppport DHCP and basic firewalling. No other features are required. Further, the reports just need to show overall trends. It is not necessary to show traffic by IP, by protocol/application, or by time of day. They just need an overall week to week, month to month, trend line. I'm familiar with MRTG/PRTG/tools that collect SNMP data from the router, but the libraries don't have the expertise for the configuration. I've considered installing the tomato firmware on some cheap home/home office routers, but if there's a commercial product that can be purchased that would be significantly simpler. Also the library boards would be much more likely to approve the purchase of a commercial product over a 'hacked' one. Any assistance would be appreciated.

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• How to use Python to read the physical address(MAC ID) [closed]

  - by getjoefree

  I want to read the physical address of the NIC model, i can get the results that i want to with SED.EXE before, but SED.EXE does not support my environment but Python ok, who have the means to do it. The general situation (not plug the network cable, it is impossible to obtain IP address): Ethernet adapter: Connection-specific DNS Suffix.: Chianet Description ...........: Marvell Yukon 88E8040 PCI-E Fast Ethernet Controller Physical Address .........: A4-BA-DB-9D-1E-8E Dhcp Enabled ...........: Yes Autoconfiguration Enabled ....: Yes Ethernet adapter 3: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Dell Wireless 1510 Wireless-N WLAN Mini-Card Physical Address. . . . . . . . . : 00-23-4D-D9-C0-28 The description of the NIC different, we can use this to fetch the corresponding physical address, base on Physical Address does not work, because the computer with the WLAN Card, I want to use Python to read my computer the card information and after Python handles an output file, output file format: SET MAC = A4BADB9D1E8E and sed format: ipconfig -all|sed -nrf getmac.sed | sed -e "s/-//g" > WINMAC.BAT getmac.sed: /Marvell Yukon 88E8040/ { n; s/.*: ([-0-9A-F]+)/set winmac=\1/p; }

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• OpenVPN: ERROR: could not read Auth username from stdin

  - by user56231

  I managed to setup openvpn but now I want to integrate a user/pass authentication method so, even though I haven't added the auth-nocache in the server config, whenever I try to connect it returns with the following message on the client side: ERROR: could not read Auth username from stdin My server.conf file contains basic stuff, everything works up untill I try to implement this for of authentication. mode server dev tun proto tcp port 1194 keepalive 10 120 plugin /usr/lib/openvpn/openvpn-auth-pam.so login client-cert-not-required username-as-common-name auth-user-pass-verify /etc/openvpn/auth.pl via-env ca /etc/openvpn/easy-rsa/2.0/keys/ca.crt cert /etc/openvpn/easy-rsa/2.0/keys/server.crt key /etc/openvpn/easy-rsa/2.0/keys/server.key dh /etc/openvpn/easy-rsa/2.0/keys/dh1024.pem user nobody group nogroup server 10.8.0.0 255.255.255.0 persist-key persist-tun #persist-local-ip status openvpn-status.log verb 3 client-to-client push "redirect-gateway def1" push "dhcp-option DNS 10.8.0.1" log-append /var/log/openvpn comp-lzo I searched all over the net for a solution and all answers seems to be related to the auth-nocache param which I haven't set. The directive auth-user-pass-verify /etc/openvpn/auth.pl via-env points to a script which is executed to perform the authentication. A false authentication should result in a exit 1 while a true one should result with exit 0. For testing, that script auth.pl returns exit 0 no matter what the input is but it seems that the file is not executed before the error raises. auth.pl file contents: #!/usr/bin/perl my $user = $ENV{username}; my $passwd = $ENV{password}; printf("$user : $passwd\n"); exit 0; Any ideas?

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• How can I use two Internet connections in Ubuntu?

  - by Martin

  My goal is to be able to do something like this: curl google.com --interface ppp0 curl google.com --interface p2p2 ppp0 is a DSL connection, and p2p2 is a separate direct Internet connection. Currently I can only get one of these to work at a time. When I enable one, the other one stops working. /etc/network/interfaces: # The loopback network interface auto lo iface lo inet loopback # DSL auto p2p1 iface p2p1 inet manual auto dsl-provider iface dsl-provider inet ppp pre-up /sbin/ifconfig p2p1 up # line maintained by pppoeconf provider dsl-provider # DIRECT auto p2p2 iface p2p2 inet dhcp ifconfig: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 p2p1 Link encap:Ethernet inet6 addr: fe80::20a:ebff:fe21:99c6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 p2p2 Link encap:Ethernet inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20a:ebff:fe17:1249/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 ppp0 Link encap:Point-to-Point Protocol inet addr:53.193.231.167 P-t-P:53.193.224.1 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 10.0.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 53.193.224.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 p2p2 By default, only ppp0 works. If I run "route add default gw 192.168.1.1 p2p2" then I can use p2p2 but ppp0 stops working. If I then run "route add default gw 53.193.224.1 ppp0" then I can use ppp0 again but p2p2 stops working. What can I do to be able to use both interfaces selectively?

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• vmware vcenter 5.1 installation with FQDN error

  - by CSG

  I'm trying to install vCenter 5.1 on a windows 2012 dedicated (with SQL express standalone) During the installation of the Single Sign On module i've a warning "the fully qualified domain name cannot be resolved with nslookup. if you continue the installation some features might not work correctly. for detailed requiments see the installation and setup guide" The only indication that i've found are about the reverse zone dns resolution.. and this works! i've verified that the dns works properly with nslookup C:\Users\admin>nslookup srv6.mydomain.local Server: srv2.mydomain.local Address: 172.25.4.22 Nome: srv6.mydomain.local Address: 172.25.1.26 C:\Users\admin>nslookup 172.25.1.26 Server: srv2.mydomain.local Address: 172.25.4.22 Nome: srv6.mydomain.local Address: 172.25.1.26 (all ip are right: I've the vCenter=srv6 and DC+DNS=srv2 on different vlan) i've tryed to force the resolution of the ip changing the [..]\drivers\etc\hosts file i've disabled the IPv6 support i've used all combination with domain prefixes (explicit, by dhcp, undefined..) i've disabled all antivirus/firewall (kaspersky end point 10) is this a bug of vcenter 5.1.0-1065152 ? have you got any suggestions for me?

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• How to set up multiple DNS servers on an intranet

  - by Brent

  We have an Active Directory network, with a mixture of Windows DNS, linux BIND servers, and want to use OpenDNS as our external DNS provider. I am wondering What is the best way to set up these servers (regarding forwarders, recursion, etc.)? Active Directory is our main internal DNS for our domain, and has 3 redundant servers. DHCP and all our servers use these as their DNS servers. Then we have a legacy AD server from an old network that is still authoritative for a bunch of domains. Finally, we have a couple of Linux Bind servers that are authoritative for a bunch of websites we host. Should our main AD servers point to our legacy AD server, which points to one of our BIND servers, which points to the other BIND server, which finally points out to openDNS? Or should our main AD servers point to all of these directly? - or is there a better option? What happens if a domain is listed in 2 places? Does DNS process the forwarders in order? What about root servers - if I want to use OpenDNS for "everything else", do I just list them as the last forwarders, and delete the root servers from all my DNS servers? How does recursion work - in this scenario, should I be using recursion or not?

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• Running DNS locally for home network

  - by Roy Rico

  I have a small home network that just got larger ( New roommate, My existing roommate got a laptop (on top of her computer)j, my friends coming over with laptop, etc ). I'd like to run a local DNS server for lookups of my local network stuff (fileserver.local, windowsTV.local, machineA.local, machineB.local, appletv.local). I used to have a business line with a static IP, and run bind/named internally. However, now, I have a normal account. My ISP's DNS servers are constantly changing (for whatever reasons my ISP doesn't like to keep the same IP range for long). I need my local DNS to be automatically updated to use my ISP's DNS for external traffic, but be able to maintain an internal DNS server (getting to update the hosts file is being a hassle with every new machine on top of rebuilding existing machines with win7 or Ubuntu 9.04). Additionally, My ISP's DNS servers often crash or become unresponsive. Are there any open DNS servers that are reliable (i don't want to reconfig every day) that I could use as my primary, then if those fail, then use my ISP's? UPDATE: Also looking for each workstation to be able to use dhcp to connect, but instead of getting ISP dns servers, getting my internal one.... Thanks

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• Networking problems in VMWare with wireless bridge

  - by Robert Koritnik

  Barebone data: virtualization: VMWare Workstation 6.5 (latest) Host: Windows Server 2008 x64 Guest: Windows Server 2008 x86 Host network adapter: Ethernet (see comment) Host network adapter: Wireless (see comment) Guest ethernet network adapter 1: Bridged VMNet (automatic) Guest ethernet network adapter 2: Host only VMNet comment: my host has LAN and Wifi but only one at the same time. I'm either wired or wireless. Never both. So bridged connection on VM goes either via wire or air. Problem When I'm wirelessly connected on the host and I access internet within VM my connection just gets stalled (not dropped). It doesn't experience any timeout whatsoever, it just stops downloading/communicating. For instance: I start downloading a file with a browser (IE/FF/CR doesn't matter) and I have to pause/restart download when speed drops to 0. I could wait indefinitely but connection won't pick-up automatically. What did I miss in my network configuration? Update 1 I've tested this in various combinations. This works fine when host is connected via Ethernet. But when host is connected via Wifi, the connection on the guest works as previously described. It connects fine. It gets a valid IP from DHCP... Everything is cool as long as you don't start doing some intensive network traffic (ie. download a 2MB file) In this case it starts downloading and stops after a while. Speed just drops to 0B/s... Sometimes it picks up back, sometimes it doesn't. Connection still stays and works. I can ping around with no problem.

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• Virtual Lan on the Cloud -- Help Confirm my understanding?

  - by marfarma

  [Note: Tried to post this over at ServerFault, but I don't have enough 'points' for more than one link. Powers that be, move this question over there.] Please give this a quick read and let me know if I'm missing something before I start trying to make this work. I'm not a systems admin professional, and I'd hate to end up banging my head into the wall if I can avoid it. Goals: Create a 'road-warrior' capable star shaped virtual LAN for consultants who spend the majority of their time on client sites, and who's firm has no physical network or servers. Enable CIFS access to a cloud-server based installation of Alfresco Allow Eventual implementation of some form of single-sign-on ( OpenLDAP server ) access to Alfresco and other server applications implemented in the future Given: All Servers will live in the public internet cloud (Rackspace Cloud Servers) OpenVPN Server will be a Linux disto, probably Ubuntu 9.x, installed on same server as Alfresco (at least to start) Staff will access server applications and resources from client sites, hotels, trains, planes, coffee shops or their homes over various ISP, using their company laptops or personal home desktops. Based on my Research thus far, to accomplish this, I'll need: OpenVPN with Bridging Enabled to create a star shaped "virtual" LAN http://openvpn.net/index.php/open-source/documentation/miscellaneous/76-ethernet-bridging.html A Road Warrior Network Configuration, as described in this Shorewall article (lower down the page) http://www.shorewall.net/OPENVPN.html Configure bridge addressesing (probably DHCP) http://openvpn.net/index.php/open-source/faq.html#bridge-addressing Configure CIFS / Samba to accept VPN IP address http://serverfault.com/questions/137933/howto-access-samba-share-over-vpn-tunnel Set up Client software, with keys configured for access (potentially through a OpenVPN-Sa client portal) http://www.openvpn.net/index.php/access-server/download-openvpn-as/221-installation-overview.html

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• ProCurve 1800 switch issue

  - by user98651

  I recently deployed ProCurve 1800-24G switches in place of some older ProCurve 2424M switches in my network. However, I'm having a serious problem with the switch connected to the router. It seems, every night when our Windows 2008 R2 server (off site) runs a backup to a iSCSI target (on site) [facilitated through a PPTP tunnel] the LAN loses connectivity with the router. To clarify, there is only one router which is connected to the switch affected by this problem. The only way to resolve the issue is to either reboot the router or pull the ethernet cable that goes to the router and plug it back in. During the outage, clients cannot receive DHCP requests, DNS requests, ping, or do anything else with the router in this state. Now, neither the switch or router are configured extensively and the issue only seems to have surfaced with the new switch in place. I have tried a number of things including replacing cables, rebooting and checking the switch configuration (it is literally as basic as you can get at this point-- flat LAN, no trunking). Interestingly, the router shows (accessed externally) no changes in configuration or status during this state but similarly cannot ping or access other hosts on the network. This issue occurs in different stages of backup (ie, different amounts transferred). I've also dumped packets from the switch into WireShark but cannot seem to find any anomaly yet (I'm looking at packets around the time the issue appeared and at the time when I reset the NIC). Any suggestions for what to look for? Ideas on what could be causing this? I'm seeing some transmit/receive errors on the NIC from both the router and switch side but nothing serious when compared to the total packet counts. I'm seriously doubting hardware at this point, as I have tried another switch, different cables, and a different NIC on the router.

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• Datacenter IP Addressing and DNS Management

  - by user65248

  Hello everyone Basically we are setting up a small Datacenter, about 300 amps power and max 50 racks, Im saying these coz I wanna u imagine the size and requirements, I have studied networking mostly Microsoft and Windows based systems , but I cant get how the IP addressing and DNS management and configuration works in a Datacenter , and unfortunately I have to setup everything by myself but defe we will have some staff to do some job. Now my questions Datacenter IP Addressing Suppose we have got a block of 200 IP addresses from our ISP, How can I manage these block of IP addresses, is there any software out there to simplify this I heard that using DHCP server in a datacenter is not recommended, otherwise what would u say about MS DHCL server ofc considering we need to have backup serversin case of failur How can I assign a block of IPs to a specific rack, I know with different software and management its different but Im asking how it is done normally IP addresses are exposed to the whole network, what if a customer try to use an IP address and is not assigned to their server or rack , how can I prevent this or how can I track the IP usage DNS Management Im goin to setup at least two servers for our DNS servers, I know nothing about Datacenter DNS system, but I have configured DNS server in normal networks and also for webservers, Now I wanna know What exactly needs to be done for a DNS in a datacenter that is not done for normal networks. How can I configure PTR records why cant I configure PTR records on my webserver side DNS server and it should be done on datacenter DNS server , I mean what is the difference in DC DNS servers that allow us to to so , I know the question is very silly and simple but Im confused Is there any software outthere to allow doing the whole thing, I mean automatically add records to the DNS and also managin IP addresses !? Thanks in advance

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• Network Explorer Intermittently Fails to Display all Computers in Work Group

  - by graf_ignotiev

  I run a small computer lab of 10 computers and occasionally, when using the network explorer (a.k.a Network Browser) some or all of the remote computers will fail to appear. If I try to access a remote computer by its name I get an unspecified error (code 0x80004005), but I am still able to access it with the computer's IP address. The strangest part is that the problem will inexplicably go away after waiting awhile. Each computer is running Windows 7 x64 Enterprise and has identical hardware, software and configuration. They are all on the same subnet and in the same workgroup. I've spent days researching the problem and have tried the following solutions: Updated the BIOS, chipset and network adapter drivers Changed Power Settings in Network Adapter Properties so that the computer will not turn it off Disabled the Computer Browser service Changed the DHCP node type to broadcast Reviewed the Event Viewer logs Steps 3 and 4 have seemed to help the problem a little bit, but not completely. I'm beginning to suspect that the problem might lie with our router which is a ZyXEL ZyWALL 2WG, as the packets sent by Network Discovery may not be returning in time, but I wanted to get some perspective in the issue before I went any further.

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• Why am I seeing MailSlot Browse messages on unrouted ports of my Linux box?

  - by nmichaels

  I have a Linux box (Debian squeeze) with several NICs. The ones of interest are: eth3 - my main link to the network (dhcp on 10.20.30.0/24) eth0 - the first connection to my test network (static: 192.168.1.2) eth4 - the second connection to my test network (static: 192.168.1.1) My routing table looks like this: $ sudo route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.20.30.0 * 255.255.255.0 U 0 0 0 eth3 default 10.20.30.254 0.0.0.0 UG 0 0 0 eth3 I have the 2 test net ports connected to each other with a crossover cable and an instance of wireshark running on each port. Every once in a while, I'll see a packet like the following show up. Who could be doing this, and how do I convince them to stop? I do have Samba running on the machine (for a cifs mount) but don't see why it would be sending packets out to unrouted ports. I had a Windows VM running in VMWare Client and thought that might be causing it, but it still happens without it. What I want is totally silent interfaces so I can run some tests with Scapy over them.

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• How can I parse/ transform text log data before it gets captured in SCOM 2007 R2?

  - by Abs

  I'm pretty much a noob with System Center Operations Manager 2007, and I'm probably missing something pretty basic, but I'm stumped anyway. We're setting up monitoring on some of our servers, and we'd like to capture data from some plain text log files (e.g. DNS debug logs, DHCP logs). It looks to me like I can set up a generic text file monitoring rule and get events captured into the main Ops Manager database, but my understanding is that the whole line of text from the plain text log gets captured as one field. In an ideal world, we'd be able to parse or transform that log file data to make it easier to query later. Is this possible? Is it easy? Do I have to buy expensive 3rd-party software to do it? One more thing: it would be even better if there was a way to stuff this data into the Audit Collection Services (ACS) database instead of the main one, but I'll take what I can get. Any help would be greatly appreciated.

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• How do I connect a 2008 server to a 2003 server active directory?

  - by Matt

  Our DC is running Windows Server 2003. I've just set up Windows Server 2008 and have terminal server running on it. When setting the terminal server permissions, it was able to allow a group name that was read from the domain. In the DC the new terminal server shows up as a computer in the domain. I can also log in as a user within the domain even though that user doesn't exist locally on the new server. However, when I go to set sharing permissions on the new machine it doesn't show my domain as a location. Instead it is only looking at location "machinename" and not allowing domain to be seen or added. Is there something I'm missing? Ok, lots of errors in the event log. We have this: The winlogon notification subscriber is taking long time to handle the notification event (Logon). Followed by this: The winlogon notification subscriber took 121 second(s) to handle the notification event (Logon). Followed by: The processing of Group Policy failed because of lack of network connectivity to a domain controller. This may be a transient condition. A success message would be generated once the machine gets connected to the domain controller and Group Policy has succesfully processed. If you do not see a success message for several hours, then contact your administrator. I think this might be the same problem I'm having http://serverfault.com/questions/24420/primary-domain-controller-slow Solved. The issue was that I had changed from DHCP to static and put the wrong DNS server IP in. i.e. firewall instead of DC/DNS server.

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• Vista WHS Client stopped resolving local names

  - by andrewcr

  I’m running Windows Home Server PP2 in my home, with 3 client computers: two XP and one Vista. I have a router that provides my local DHCP and the server has a static IP address. The other day the Vista machine hung, and on reboot stopped resolving local names. It will show the green home server client icon in the system tray, but if I attempt to log in to the console, I get a “This computer cannot connect to your home server” message. If I ping the server name from the command line, it does not resolve, and gives a “could not find host” message. Oddly enough, if I browse the network, I can see the server, but double clicking on it fails. The other machines on the local network have no problems seeing the server, and the Vista machine has no problems resolving names from the internet, it just can’t see any local machines. I’m aware that I can work around this by adding entries to my HOSTS file (it does work), but I’d like this to work the way it’s “supposed” to. I’m an experienced computer user and developer, but not a networking whiz. Can anyone tell me how local name resolution is supposed to work in my environment and/or suggest ways to troubleshoot this? Thanks, Andy

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• Possible DNS issue after a reinstall of Windows Server 2000 (get off my lawn)

  - by cop1152

  I just replaced a drive on a Win2000 Server that replicates AD and issues out DHCP at one of our offices. I successfully joined it to the domain, setup range of IP's, etc, but am still having issues. I cannot RDC to it with name or IP. I can ping it, browse to it with Windows Explorer, and remote to it with some other software, but not RDC. The other issue is this: Users are unable to authenticate on it. They receive the message 'username or password incorrect' (or something like that). Changes made on the main domain controller seem to take forever to trickle down. The most significant entry in the DNS Server Log is Event ID 7062: The DNS Server Encountered a Packet Addressed to Itself. At least, I think its significant. The Directory Services Log shows numerous Event IDs 1265: The attempt to establish a replication link with parameters failed with the following status: The DSA operation is unable to proceed because of a DNS lookup failure. Does this make any sense to anyone? I feel like its something very simple that I am overlooking. Thanks in advance.

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• windows Home Server backup error

  - by domen

  I've finally built my WHS, but some other problems have showed up. I've googled, binged and searched SU with no success. The problem is following: at the moment I've got a Win7 laptop and Win7 PC, which should be backed up by the WHS. Laptop is backed up just fine with no issues, but when I try to manually backup the PC, after "backup is starting" message, when backup service should be monitoring changes on partitions, PC gets disconnected from the home network and thus, the backup process is stuck. Disabling/enabling network adapter gets PC back on the network. The only thing I've tried was reinstalling connector software. no success. Also, I've downloaded connector troubleshooter and only thing it says is "DHCP server was not found". I'm not good with networks, so I couldn't figure out what could that indicate (all computers in the network are assigned static IPs). Any ideas what the problem can be? I can provide any additional information, I'm just not sure what may be helpful right now. Thanks.

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• apache2: ssl_error_rx_record_too_long when visiting port 80?

  - by John

  Hi, I have an Ubuntu 10 x64 server edition machine. I got a second IP and configured /etc/network/interfaces like so (actual IPs and gateways removed): auto lo iface lo inet loopback #iface eth0 inet dhcp auto eth0 auto eth0:0 iface eth0 inet static address [ my first IP ] netmask 255.255.255.0 gateway [ my first gateway ] iface eth0:0 inet static address [ my second IP ] netmask 255.255.255.0 gateway [ my second gateway ] /etc/apache2/ports.conf: Listen 80 NameVirtualHost [ my first IP ]:80 NameVirtualHost [ my second IP ]:80 <IfModule mod_ssl.c> # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to <VirtualHost *:443> # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 NameVirtualHost [ my first IP - some site is running SSL successfully using it ]:443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> /etc/apache2/sites-enabled/mysite.conf: <VirtualHost [my second IP ]:80> ServerName mysite.com Include /var/www/mysite.com/djangoproject/apache/django.conf </VirtualHost> Then when visiting http[mysite].com:80 or http[mysite].com (:// removed because serverfault doesn't allow me to post hyperlinks), I get: An error occurred during a connection to [mysite].com. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) My guess is that the configuration file is not being picked up, and apache is therefore looking for the default-ssl file, which is not in conf-enabled. If I were to configure that file properly, it seems I would successfully connect to whatever default directory is specified in the default-ssl file. But I want to connect to my website. Any ideas? Thanks in advance!

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