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• Sharing VPN access between two computers on the LAN

  - by Axelle Ziegler

  I have VPN access to several machines in my office from my home machine. I'd like to be able to access those machines from another computer on my LAN, without setuping a second VPN access. Both computers are Windows 7 machines. Is there a way for my "main" computer to share its VPN access to another machine on the LAN? How would one setup this share? I don't think "simple" Internet connection sharing fits my needs because: My LAN already has its own DHCP/Router to access the Internet, and I'd like to keep it this way I can't access the Internet through my VPN connection

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• backup, sync and search files over internet and intranet

  - by Cawas

  There are many online backup options out there. Dropbox, Sugarsync, Mozy, Carbonite, Jungledisk and my favorite so far, Crashplan. Some of them allow searching, all of them sync with their online servers, none of those (or many many others I didn't listed here) have what I want. I'm _not_ looking for an online backup service in here. Sure, some people might say "use rsync", "linux" and/or "set up apache" and so on... But that's just too much for maintenance, if it's even viable of building up. It needs to be simple. So, anyone knows of a really good solution out there? Picture mostly Google Desktop Search (or quick search) awesome searching, mixed with Crashplan Desktop, which is able to do everything by itself, and something like Dropbox's file versioning, along with dropbox the ability to seamless sync over intranet and internet like crashplan, switching between them when needed. I bet there's nothing like this yet, but well, I'm not sure. It would be great!

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• How can I offer 2.4 ghz wi-fi in a building with strong interference?

  - by user49995

  I have a few access points on one floor of a high-rise building. They support both 2.4 ghz and 5ghz. When I used 2.4 ghz, the channel management features did not seem to work and we experienced frequent problems. When I switched to 5 ghz the problems went away. However, the 5ghz standard is much less accepted. And when clients come in, they want 2.4ghz. What can I do? How can I offer 2.4ghz wi-fi in an area with a lot of interference?

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• Monitor number of bytes transferred to/from IP address on port.

  - by Mike

  Can anyone recommend a linux command line tool to monitor the number of bytes transferred between the local server and a specified IP address/port. The equivalent tcpdump command would be: tcpdump -s 0 -i any -w mycapture.trc port 80 host google.com which outputs : 46 packets captured 131 packets received by filter 0 packets dropped by kernel I'd like something similar that outputs: 54 bytes out, 176 bytes in I'd like it to work on RHEL and be free/open-source. It would be good if there was an existing tool which I was just missing too!

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• Problem installing CanonMF5880dn

  - by Paul

  Just got a CanonMF5880dn and cannot print to it from Suse 11.1 MacBook prints w/o issue ping 192.168.1.103 no problem cups sees it as Canon MF5880/MF5840 PCL at URI socket://192.168.1.103:9100 cups test print appears to submit and complete job but no action from printer Yast also seems to install printer correctly CQue2 also seems to install printer correctly all attempts to print yield same results: Suse indicates job processed correctly and completely but no printing happens. firewall is off http://192.168.1.103 in FF gives me the printer config menus correctly What have I failed to do?

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• Auditing bandwidth of remote sites

  - by keithosu

  I would like to do an automatic audit of bandwidth of my remote offices. I understand that there are many websites where I could ask each user to go to a webpage and run the test. I was hoping there was some software that I could run on our web server and a script that I could send out that would run the test and record the results to a central web interface. The remote sites are all running some form of Windows and the server environment can be Linux or Windows based.

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• Why does windows (file) explorer try to connect to port 80 (http) instead just using smb?

  - by Erik

  Background: On an almost freshly installed pc I get a message along the lines of : "windows cannot find some-file-server-name. Check the spelling and try again"... when trying to access any fileshare. Troubleshooting so far: pinging works. Both by ip and by name the almost identical pc next to this one can access the file server everyone else can access the file server the pc in question can not access other open fileshares but it can connect to the internet And now for what I think is the interesting part: running wireshark with ip.addr == local.ip.add.ress and ip.addr == server.ip.add.ress tells me that it tries to connect over http. the server replies but after a few messages back and forth it stops the other machine of course just uses smb I guess port 80 just means it defaults to webdav, but I haven't been able to find anything that can cause this. Googling it the closest thing I found was this http://www.techrepublic.com/article/get-vista-and-samba-to-work/6353849 but then again this was an XP pc and I wasn't able to connect to other native Windows shares (and I tried the solution anyway and it didn't work.)

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• Best practice for migrating Shares and Permissions?

  - by TryTryAgain

  We have a Windows 2008 R2 server which is replacing an old Windows Storage Server. The datastore is attached via iSCSI so I do not need to transfer any data. The iSCSI connection is setup on the new machine, and now I'm wondering: How should I transfer the shares and permissions? Do I use PERMCOPY for permissions or is there something better as of Windows 2008 R2 (compared to Windows 2000): PERMCOPY //SourceServer ShareName //DestinationServer ShareName Is exporting/importing registry still a valid option? from: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Shares Any help/tips would be greatly appreciated.

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• Can you print from a MS Remote Assistance session to your local printer?

  - by Craig Johnston

  Can you print from a MS Remote Assistance session to your local printer?

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• How do I create a wireless ad-hoc network?

  - by Vinaychalluru

  Hello., Whenever i need to copy some files and couldnt find a pen drive, [ i dont have bluetooth enabled in my lap], I create a new ad hoc (wireless) network in windows and share the necessary files on the network and share files with the other system. Now, i want to do the same with Ubuntu. But, i couldn't. I could create a new network, but i am not able to chare or send or even dont know how to access the system connected to the network. So, how can i do this? Thanks

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• Remotely Managing Storage on Hyper-V 2012 Core

  - by Vazgen

  I have a core Hyper-V Server 2012 that I am remotely managing from a Windows 8 client. I can connect in Hyper-V Manager, Server Manager, and MMC. However, I don't understand how I can manage the physical hard drive (for ex, deleting vhdx files, creating folders, etc) from my Windows 8 client. I tried to attach the remote share as follows: q: \\MyServer\c$ It said command completed successfully, but I don't see the drive on my client's Explorer. I can get to it in cmd.exe on the client but how can I manage it in a GUI? explorer q: Throws error:

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• Shared folder on mac: mounted on ubuntu but not writable

  - by Max Williams

  I've got a mac (called 'maxw-hackbook') with a folder (called 'work') which i've shared, making it "read & write" by me, "staff" and everyone. I've then mounted it to a folder on my ubuntu laptop, as follows: #on ubuntu laptop $ smbtree -s WORKGROUP \\MAXW-HACKBOOK maxw-hackbook \\MAXW-HACKBOOK\IPC$ IPC Service (maxw-hackbook) \\MAXW-HACKBOOK\work work $ sudo smbmount //MAX-HACKBOOK/work/ /mnt/hackbook-work -o ip=192.168.1.228,username=Max,password=passwordonmacbook,w This has successfully mounted the "work" folder on the macbook to the /mnt/hackbook-work folder in ubuntu. But, it's read-only, even though i've set the shared folder (on the mac) to be "read and write" by everybody. I need to have write access to that folder on the mac. Can anybody see what i've done wrong? thanks, max

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• Word 2007 consistently crashes when I use my VPN

  - by tsahilevi

  Hi, My Office 2007 consistently crashes when I use it while connected to the VPN. This happens even with local files. When I try to paste stuff, it tries to connect to the printer (over VPN) and if I stop the process (which in itself blocks for about a minute), then Word 2007 is bound to crash a few seconds afterwords. My VPN is Check Point VPN-1 SecureClient Anyone knows what can be done with this problem?

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• How to map to Windows Server shares in Linux (Ubuntu) easily?

  - by TheCleaner

  I know how to get connected to a Windows share easy enough, and I've read how to change the fstab file to get it to mount at boot. The real question here is...can I create a few shortcuts on a common user desktop so that regardless of who logs into Ubuntu machine they can open that shortcut and it will open the Windows share? I would also need to allow AD credentials during login, so a link to that will help as well, but I'm sure I can search google for that part.

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• Linux (Ubuntu): How to get the path to a mounted Windows folder?

  - by StackedCrooked

  I have mounted a Windows share using the GUI in Ubuntu. Now I would like to access it using the Terminal application. However, I don't know its path. I thought it should be in /mnt, but it isn't there.

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• extra managed+unmanaged switches @ home/office -- best (mis)usage scenario? what would you do?

  - by locuse

  up front -- definitely NOT a mission-critical kind of question. after a 'spring cleaning' of my local office, i've ended up with two 'spare' GigE switches at my home/office -- one managed, capable of VLANs, QoS, etc, and the other unmanaged. i've got more ports than i need. in fact EACH switch has more total ports than i need. but, since i can't have these just sitting around not doing SOMETHING ... ;-) i'm interested in ideas for best combined use of these switches. my local topology is simple: [ net ] -- [ adsl2 modem ] -- [linux firewall/router/DNS ] _______________| | [ some arrangement of the 2 GigE switches ] | ( ... stuff on the lan ... ) [WAP1] [voip ATA] [printer] [desktop1] [mail server] [Xen server [desktop2] ( mostly dev, [desktop3] + file server [desktop4] + media server)] the MailServer is a production mail server the XenServer serves some low vol to the 'net; the MediaServer guest serves ONLY to the LAN is there, e.g., any performance value in segmenting off any of the LAN using the managed switch (VLAN? QoS tagging? something?), feeding the rest into the connected unmanaged switch? or should i simply use one of the switches & be done with it, and use the other for a coffee-cup stand?

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• Route outbound connections from local network through VPN

  - by Sharkos

  I have a server A running OpenVPN, an OpenVPN client B (a rooted Android phone as it happens) and a third party C (a laptop, tablet etc.) tethered to B. B can use the VPN to access the internet via A; C can use the tethered connection WITHOUT the VPN to access the internet via B. However, with the VPN on B active, I cannot load information from the internet on C. A appears to log similar traffic inbound and outbound when B or C attempt to load a webpage, say, but the VPN on device B reports no inbound traffic when the connection originated from C. Where should I look for packets being dropped, and what ip rules should I use to make sure they are passed back through the VPN and into the local network B <- C? (I'll obviously post whatever further information is needed.) Further info Without VPN: root@android:/ # ip route default via [B's External Gateway] dev rmnet0 [B's External Subnet] dev rmnet0 proto kernel scope link src [B's External IP] [B's External Gateway] dev rmnet0 scope link 192.168.43.0/24 dev wlan0 proto kernel scope link src 192.168.43.1 With VPN: root@android:/ # ip route 0.0.0.0/1 dev tun0 scope link default via [B's External Gateway] dev rmnet0 [B's External Subnet] dev rmnet0 proto kernel scope link src [B's External IP] [B's External Gateway] dev rmnet0 scope link [External address of A] dev tun0 scope link 128.0.0.0/1 dev tun0 scope link 172.16.0.0/24 dev tun0 scope link 172.16.0.8/30 dev tun0 proto kernel scope link src 172.16.0.10 192.168.43.0/24 dev wlan0 proto kernel scope link src 192.168.43.1 192.168.168.0/24 dev tun0 scope link

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• Disable the "smoke" in SmokePing for multihost

  - by Tuinslak

  Hey, I'm running SmokePing to monitor the latency to several machines. I have been playing around with the multihost feature, allowing me to draw stats of multiple machines in one graph. However, on the details page, smoke is being drawn as well, resulting in this: Is there a way to disable this? As it makes the graph pretty much unreadable. Smoke is enabled for the stats per server, so it's duplicated data here.

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• A Single wireless network is not showing up in Ubuntu that used too, and other devices have no issue finding or connecting to it

  - by Kit Sunde

  Up until about a week ago I could connect to my wireless, but now I suddenly can't. Every other wireless in the area show up in the network manager. My kindle can connect to it, my friend can connect to it (in windows) without having connected to it before. My other netbook (Samsung NC10) can connect to it, but my other Samsung N150 now cannot even see it. I have tried deleting the old auto entry for it in the network manager Tried disabling and enabling both the networking and the wireless through the network indicator. Disabled the networking through the hardware shortkut key thing [fn] + [F9] Attempting to connect to it as if it was a hidden network. I'm at a loss, how would I go about debugging and unborking my computer?

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• Debian Squeeze - Monitor outgoing traffic

  - by Sam W.

  I have a small webserver that running on Lighttpd 1.4 which steadily uses 250GB or less bandwidth for the past couple of months. But since May the traffic spikeed to more than triple of what it was. Nothing special was on my site to make its spike like that. When I checked with vnstat I found that 70% of the bandwidth is tx. I suspect I've been hacked and my webserver is becoming some sort of bot. ClamAV comes out with nothing and I already replaced the Joomla installation with a fresh one, early in June. But right now the traffic stayed the same. My question, how can I monitor my server and look what is transmitting all that data out? My need to be done to pinpoint what is the culprit. Can someone please point to the right way to solve this? Thank you.

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• What is the best way to migrate to a new file share in a new domain?

  - by cbattlegear

  I am looking to move a file share (100 GB or so) from one domain/server to a new domain and server. I would like to do this with little to no downtime and if possible I would like to be able to map permissions from the groups/users in the current system to groups/users in the new domain. A side question, a large number of the files in the system are office documents with hard links to the old file server. Any way to programmatically change all those links to the new file server?

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• How to find the reason for a weekly downtime on an Ubuntu web server hosted by AWS?

  - by IceSheep

  We started monitoring our web server using Pingdom and found out that we have a downtime of a few minutes every Sunday at 0:00 UTC. The test runs every minute and checks if a successful HTTP response (code 200) is returned on port 80. The test fails due to a timeout (no response after 30 seconds). Here's what we've already checked – without success: Since we run our webserver behind a load balancer, I've set the Pingdom test on the load balancer's public DNS and the webserver's public DNS in order to find out if there's a problem with the AWS load balancer – both tests return the same result We set up Munin on our webserver. Everything looked fine even after the failure. Since the last failure lasted only 2 minutes I suppose Munin couldn't capture a potential problem (it only checks every 5 minutes) I have checked /var/log/apache2/error.log and /var/log/syslog for suspicious entries I have checked /etc/cron.weekly and /etc/crontab for suspicious entries I have searched for files created or last-modified during 0:00 and 0:15 using this method: touch -t 201209020000 start touch -t 201209020015 end find / -newer start -and ! -newer end (nothing found) Has anybody experienced a similar problem? Any proposals on how to find the reason for this behavior? It's Ubuntu 10.04 LTS running on an AWS m1.large instance. Thanks!

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• Windows 7, network transmit (send) not working

  - by user326287

  My Win 7 works 2 years without problem. But now, I can't transmit (send) big data on LAN/Internet. I can: - Ping anything - Browse Internet, download files at full speed - Send e-mails with very small attachments. - Testing download speed on Speedtest.net, measure stable full speed. I can't: - Testing upload speed on Speedtest.net. Upload stuck.. - Save/send email messages with big (128k) attachment, independent from e-mail provider or e-mail box. THIS IS NOT A HARDWARE/CABLE/CARD OR OTHER NETWORK DEVICES PROBLEM! When I boot from a Linux Live CD, without ANY hardware change, all data sending, testing works correctly, at full speed. I have tried already in Win 7: - Disable Windows/3rd party Firewall completely - Reset IP stack parameters (netsh int ip reset c:\resetlog.txt) - Computer restore - Reinstall LAN driver When I inspect the packets in Wireshark in Windows, I see lot's of (maybe 60% of sent packets) "TCP Retransmission". Sometimes receive "TCP Dup Ack" or "TCP Out-of-Order". Linux don't do this. Thank you for the help.

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• ldap samba user access issue

  - by ancillary

  I have a samba share that is on the LAN. It is auth'd via ldap. Users access file system via ad windows shares. There are shortcuts in directories that point to dir's on samba. Typically a user will click the shortcut to the smb dir, and will be met with a permission denied error. Upon closing explorer and reopening, it will work. DNS is handled by the domain controller, and that is the only server any of the machines use for DNS. Nothing in eventvwr. Only see successful auth entries in samba log. Any ideas?

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• Installing WiFi in a church for internet access

  - by Dave Griffiths

  Hi, a colleague at work asked this question: My local church want to get WiFi enabled in the whole of their offices and main church building. The offices and main building are in the same overall structure and so the signal does not need to travel outside to any other buildings outside this main structure. Where would I start on such a project and what kind of repeaters are needed (and how are they set up) given that some of the walls are pretty thick. Do you still have one ADSL line coming in to router or are there some options of having two lines coming in so that they isn't a single point of failure. Am looking at fibre for the broadband for increased speed. Any starting pointers appreciated.

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