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• Can't ping Ip over bridge

  - by tmn29a

  I'm unable to ping another host over a bridge I created, I can't see the error -.- It's a remote machine running debian stable with some backports for which I want to set up DHCP on the new Subnet 172.30.xxx.xxx to be used for KVM-Guests. ifconfig : bond0 Link encap:Ethernet HWaddr e4:11:5b:d4:94:30 inet addr:10.54.2.84 Bcast:10.54.2.127 Mask:255.255.255.192 inet6 addr: fe80::e611:5bff:fed4:9430/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:34277 errors:0 dropped:0 overruns:0 frame:0 TX packets:18379 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2638709 (2.5 MiB) TX bytes:2887894 (2.7 MiB) br0 Link encap:Ethernet HWaddr f2:fc:4d:7f:15:f0 inet addr:172.30.254.66 Bcast:172.30.254.127 Mask:255.255.255.192 inet6 addr: fe80::f0fc:4dff:fe7f:15f0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:252 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:10800 (10.5 KiB) Pings : ping -I br0 172.30.xxx.65 PING 172.30.xxx.65 (172.30.xxx.65) from 172.30.xxx.66 br0: 56(84) bytes of data. --- 172.30.xxx.65 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2017ms ping -I bond0 172.30.254.65 PING 172.30.xxx.65 (172.30.xxx.65) from 10.54.2.84 bond0: 56(84) bytes of data. 64 bytes from 172.30.x.65: icmp_req=1 ttl=64 time=0.599 ms 64 bytes from 172.30.x.65: icmp_req=2 ttl=64 time=0.575 ms 64 bytes from 172.30.x.65: icmp_req=3 ttl=64 time=0.565 ms --- 172.30.x.65 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1999ms rtt min/avg/max/mdev = 0.565/0.579/0.599/0.031 ms Route : Destination Gateway Genmask Flags Metric Ref Use Iface 172.30.x.64 * 255.255.255.192 U 0 0 0 br0 10.54.x.64 * 255.255.255.192 U 0 0 0 bond0 default 10.54.x.65 0.0.0.0 UG 0 0 0 bond0 default 172.30.x.65 0.0.0.0 UG 0 0 0 br0 The Interface : cat /etc/network/interfaces auto lo br0 iface lo inet loopback # Bonding Interface auto bond0 iface bond0 inet static address 10.54.x.84 netmask 255.255.255.192 network 10.54.x.64 gateway 10.54.x.65 slaves eth0 eth1 bond_mode active-backup bond_miimon 100 bond_downdelay 200 bond_updelay 200 iface br0 inet static bridge_ports bond0 address 172.30.x.66 broadcast 172.30.x.127 netmask 255.255.x.192 gateway 172.30.x.65 bridge_maxwait 0 If you need more info please ask. Thanks for your help !

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• BASH - Run command for each line in output of previous command

  - by user1582375

  All, I am want to request all network services using: networksetup -listallnetworkservices I then want to run the below command for each line in produced from the above command: networksetup -setautoproxyurl "A LINE FROM ABOVE" http://etc... Adiitonally, I only want to issue the setautoproxyurl command for service with "Ethernet" or "Wi-Fi" in the name networksetup -listallnetworkservices | while read line; do networksetup -setautoproxy $line http://etc...

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• Can Oracle Label Security be configured with an alternative LDAP server?

  - by Joshua

  Oracle mentions the ability to connect to their LDAP server - the Oracle Internet Directory http://download.oracle.com/docs/cd/B19306_01/network.102/b14267/olsoid.htm. Can Oracle Label Security be configured with an alternative LDAP server such as Active Directory?

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• Why would you use IPv6 internally?

  - by KCotreau

  Of course, I realize the need to go to IPv6 out on the open Internet since we are running out of addresses, but I really don't understand why there is any need to use it on an internal network. I have done zero with IPv6, so I also wonder: Won't modern firewalls do NAT between internal IPv4 addresses, and external IPv6 addresses? I was just wondering since I have seen so many people struggling with IPv6 questions here, and wonder why bother?

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• Why does starting a process in the background prevent me from recalling previous commands in the command prompt?

  - by leeand00

  I'm running asynchronous command prompt commands in cmd on Windows 7 64-bit and for some reason it effects my ability to recall previous commands just after I run them; for example: I might run something like: start /B rmdir /Q /S .\some_massive_directory And next I try to press the up arrow to recall the text of the previous command..but nothing happens...is this because whatever data structure is holding my commands is locked by the process I sent to the background, or is it because I am using a network mapped drive to run my command on?

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• Store ESX5 images on a NAS?

  - by Cylindric

  I have a basic NAS device (Buffallo LinkStation Duo) that can only present SMB fileshares to the network. For testing annd for getting a dying physical machine working I would like to store my VMDK on here. Is that possible, or will I have to find some way of presenting this as an iSCSI target of some sort? I've only used iSCSI or local storage in the past, but this isn't possible at the moment. Thanks.

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• How does Windows 7 detect my switches?

  - by Daniel

  I notices in the Network overview of Windows 7 that my switches are found on the path to the gateway, which baffled me completely. The last time I checked they just took the ethernet packages and transported them to the "right" location. How does this switch detection work? Do switches alter the packages? Do they react on ICMP messages?

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• How to find a user's (or mine) access rights on Windows Server 2008?

  - by Faiz

  I was given access to a Windows Server 2008 box and I need to check what all permissions I have on that box (if possible in the entire domain). I don't have access to domain controller and I don't want to write LDAP queries but just some GUI option or some command line stuff. Is there anyway? PS: I am not in to network administration, I am a BI developer. Pardon me if asked a stupid question.

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• Server to server replication and CPU and 32k\ corrupt doc

  - by nick wall

  Summary: if database contains a doc with 32K issue or corrupt, on server to server replication it causes marked increase in CPU in nserver.exe task, which effectively causes our server(s) to slow right down. We have a 5 server cluster (1 "hub" and 4 HTTP servers accessed via reverse proxy and SSO for load balancing and redundancy). All are physically located next to each other on network, they don't have dedicated network\ ports for cluster or replication. I realise IBM recommendation is dedicated port for cluster. Cluster queues are in tolerance and under heavy application user load, i.e. the maximum number of documents are being created, edited, deleted, the replication times between servers are negligible. Normally, all is well. Of the servers in the cluster, 1 is considered the "hub", and imitates a PUSH-PULL replication with it's cluster mates every 60mins, so that the replication load is taken by the hub and not cluster mates. The problem we have: every now and then we get a slow replication time from the hub to a cluster mate, sometimes up to 30mins. This maxes out the nserver.exe task on the "cluster mate" which causes it to respond to http requests very slowly. In the past, we have found that if a corrupt document is in the DB, it can have this affect, but on those occasions, the server log will show the corrupt doc noteId, we run fixup, all well. But we are not now seeing any record of corrupt docs. What we have noticed is if a doc with the 32K issue is present, the same thing can happen. Our only solution in that case is to run a : fixup mydb.nsf -V, which shows it is purging a 32K doc. Luckily we run a reverse proxy, so we can shut HTTP servers down without users noticing, but users do notice when a server has the problem! Has anyone else seen this occur? I have set up DDM event handlers for many of the replication events. I have set the replication time out limit to 5 mins (the max we usually see under full user load is 0.1min), to prevent it rep'ing for 30mins as before. This ia a temporary work around. Does anyone know of a DDM event to trap the 32K issue? we could at least then send alert. Regarding 32K issue: this prob needs another thread, but we are finding this relatively hard to find the source of the issue as the 32K event is fairly rare. Our app is fairly complex, interacting with various other external web services, with 2 way data transfer. But if we do encounter a 32K doc, we can't look at field properties, so we can't work out which field has issue which would give us a clue as to which process is culprit. As above, we run a fixup -V. Any help\ comments on this would be gratefully received.

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• 'Save as' dialogue box in Vista/Win7

  - by DrZaiusApeLord

  Is there a way to get this box to list the local and network drives first instead of listing favorites and libraries first? I have a user who claims this is how this box was until fairly recently but I have not made any changes nor pushed out any big updates. Now that he mentions it, its starting to bug me too. Thanks.

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• Capture virtual machine traffic in Fiddler

  - by HtS

  I'm running Ubuntu in a virtual machine (host machine is Windows 7). Is it possible to use Fiddler in the host machine to capture the traffic from the virtual machine? Seeing as the virtual machine's network must be passing through the host computers NIC, can Fiddler capture the packets? (I don't know of any free alternative to Fiddler for Linux, except Tamper Data, but I need a bit more control). Thanks.

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• Can I connect two routers to one switch?

  - by vanneto

  I want to connect two routers to a switch which will then be connected to a modem. Now as far as I know a switch does not do network translation and this won't work with one IP address. So I bought two addresses at my ISP. Attached is a simple schematic that explains what I want to do. Is there any additional configuration needed on either of the routers (Linksys WRT54GL) to make this work or will it "Just Work"?

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• Looking for a VNC (and or Remote Desktop) Profile Manager/Launcher

  - by zevlag

  I connect to many different computers via VNC and RDP. I'm looking for a windows client that can preferably do the following, though I'd accept software options that only meet some of the points: Save profiles (hostname, username, password, settings, etc.) Connect to VNC Servers Connect to RDP Servers Connect to SSH Servers (or ssh tunneling) Scan network for devices not in saved profiles Free (as in beer) Tools that do similar things, but not on windows: ARD on OSX iSSH on iPad Desktop Connect on iPad

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• Is there a difference between a self-signed certificate and one signed by your own CA?

  - by Max Schmeling

  We need to use SSL on our internal network for a few sensitive applications, and I need to know if there is a difference between a self signed certificate and one signed by a Windows Server CA that we setup? Do we need to setup a CA?

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• Do I really need to reboot my host machine to restore net' connectivity to my VMware machines?

  - by rasx

  I'm running VMware Workstation 6.54 on a Windows 7 host (64-bit). Whenever the host loses network connectivity the VMs never get their connection back until I reboot the machine (which I have to do right after I finish writing this). I've tried restarting the "relevant" services (like VMware Nat Service) but only a hard reboot works for me. Does this issue sound familiar?

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• PhpLdapAdmin - How to disable a user/uid?

  - by Jakobud

  Using PhpLdapAdmin, how do you disable/lock a user/uid so that it can't be used to login to anything on the network that uses LDAP?

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• Best way to connecting switches together to reach the best performance?

  - by user19049

  we got 3 Floors and almost 11 Switches. we are going to connect these switches so got the best performance. so this is how we got that. Network Diagram My Questions are: Is this Plan can get the best performance? Is it different to use 1x48 port Switch instead of 2x24 port switches? if no, Why? Any Suggestion!?

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• Are there any iPod Touch-like devices that run Android? [closed]

  - by Matthew

  A lot of people like iPod Touches because they're almost identical to iPhones, but without cell service (and the monthly fees that go along with it), while still being able to connect to a wireless network. Are there any alternative devices that run Android?

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• Hotel like Wifi manager

  - by flpgdt

  Does anyone knows which are these systems that manages paid wifi networks and some hotels and airports? Even better, would anyone know a open/free project that would do or could be adapted to that end? The idea is simple, I want to let the network open at physical level so anyone can connect. After connected however, the clients would have access only to a specified page where they can logging in, and doing the necessary validations the router would allow these of those ports (or even everything) for his IP.

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• How to access website hosted on iis of a virtual machine?

  - by user29402

  I have installed Windows Server 2008 on the latest version of Sun Virtual box. I have some web sites hosted in the Windows Server virtual machine. How can I access the websites hosted on the virtual machine from the host machine. Currently, the network adapter is set to work in NAT mode. Thanks in advance.

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• How can I connect directly to a mobile device over 3G?

  - by manwood

  I'd like to be able to deploy a lightweight web server on my mobile device (android) but there are obviously NAT issues with respect to the mobile provider's network. Is there anyway I can make my device publicly available/addressable over the internet?

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• how can i share my laptop 3g connection with another laptop using wifi?

  - by user23392

  Hello. i have an intel laptop with wifi running windows vista , and connected to internet using Huawei 3g key, can i share this connection using wifi with another laptop/device ? i can't find an Ad Hoc Wi-Fi Network option , maybe because i'm not using a wired connection. Any solution? Thanks

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• How to route traffic from one subnet through a specific SOCKS proxy in other subnet?

  - by Yegor Razumovsky

  Here is my network map: Internet | | Router (192.168.1.1) | | (192.168.1.100) (wireless) MacBook ( mac os x / windows 7 / ubuntu. It doesn't matter ) (192.168.2.1) (wired) | | TargetComputer (192.168.2.2) I want to route all traffic from TargetComputer 192.168.2.2 through socks proxy running on my macbook. On target computer i can only change IP settings ( ip address, subnetmask, gateway, dns ).

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• Satelite tv on my pc?

  - by jasondavis

  What would be a good solution for hooking up the satelite tv box (dish network) in my room to be abl;e to watch it on my PC and possibly record video from it? Please share with me the best cards, cables, software, anything else needed to do this in the most efficient way?

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• IIS serving locally, but not remotely

  - by cinqoTimo

  There is a router between the modem and the server. In the admin panel, I use single-port forward Internal Port External Port IP 80 80 to 192.168.1.100 (Web Server) Basically, I'm not on site, and there is a local IT person who is supposed to have this ready. I saw the port forward page, and it was configured as described above. So my question is, the only other thing it could be is firewall software, or some other device on the network that their not telling me about, right?

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