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  • Alfa AWUSO36H 1W dysfunctional driver

    - by BrainStorm
    I recently purchased an Alfa AWUSO36H 1W wireless USB adapter for my notebook, in order to improve signal strength and quality. I'm currently using Linux Mint 11, and the it uses the RTL8187 driver for this adapter, I'm also using a 4dbi antenna, though I have others. The problem is that this adapter does exactly the opposite of what it should, actually my internal Broadcom BCM4313 adapter works way better than the alfa. Browsing is slow, some network applications don't even work, pings against Google.com on the internal adapter runs smooth, while in the alfa it gets like 25% packets lost or more! I'm less them 50 feet from my AP, the internal adapter gets 44/70 link quality, and the alfa gets around 60/70 (iwconfig output). Also the system always sets alfa power to 20dbm(100mw), then I have to do sudo iw set reg B0 to make it 30dbm(1000mw), but apparently no significant change. I've installed wireless-compat drivers, no change either. And worst of all, in Windows 7 it works way more smoothly for browsing, though I couldn't test it properly there. I hope its a driver problem, even if it's a pain to find/compile Linux drivers for a starter, I prefer it to a hardware problem where I would need to buy another adapter, since I have no money left (except for the cantenna pieces).

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  • Strange problem with Google Mail and IMAP on Outlook 2007

    - by Alex C.
    I work for a small non-profit organization. We have about 35 administrative employees who use e-mail. We're on a Windows network with a domain. Everyone is running XP Pro and Office 2007 with all updates/patches. We used to use POP3 mail through a local provider. However, we recently signed-up for a free Google Apps account, and we switched to IMAP mail through Google. Everyone uses Outlook 2007 as the client. For about ten days, everything was working fine. Yesterday afternoon, we suddenly developed a strange and annoying problem. Every time you send an e-mail message, a copy of your outgoing message shows up in your inbox. It's as if you're adding your own address to the CC: line of every message. Nothing has changed on our end. I was hoping that the problem was a temporary glitch that would resolve itself, but here we are about 24 hours later, and it's still happening. I searched Twitter, and there were a handful of vague messages about issues with Google mail and IMAP, but I didn't see any references to this specific problem. Any thoughts on what's going on here and how to fix it?

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  • Computer slow after installing 32GB RAM

    - by John Gilmore
    I'm currently running very large network simulations for my PhD research, for which I need lots of RAM. I have a Core i7 2600K processor with a Gigabyte GA-Z68AP-D3 motherboard, running Windows 7 professional 64bit. I bought the system with 8GB (2x4GB) DDR3 1600 MHz Corsair Vengeance RAM and the system ran like a dream. I'm planning to upscale my simulations so I removed the 2x4GB RAM and installed 4x8GB DDR 1600 MHz Corsair Vengeance RAM. When I rebooted the system, boot time was much longer than usual (10 mins just to get to login screen). After logging in, the whole system was unresponsive. I tried playing some games (Bioshock 2), but it was unplayable. I've not had this problem before and I have an ATI Radeon HD 5850 graphics card, so that's not the problem. The only thing that's changed is the RAM. I've looked through the specifications of Windows, my motherboard and my CPU and they all state that 32GB of RAM is supported. Does anyone have an idea of what's going on? Any help would be greatly appreciated.

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  • XP box with 3 NICs on Server 2003 Domain

    - by Hannibal
    I have assigned all three NICs IP addresses that are outside the DHCP pool. I have 2 NICs are connected to 1 switch and the 3rd to my second switch. I want to assign one of the two NICs on the 1st switch to "normal" network activity (e.g. internet access, RDP, etc.) The other two NICs I want to reserve for mirroring ports on their respective switches. While this machine is connected to the domain I can access the internet and Remote Desktop. I have no idea which NIC I am using until I start mirroring a port, at which time, if I happen to be connected through one of the NICs I have dedicated to mirroring, I lose my remote desktop. I am aware that I would have more control over the NICs using Linux. I want to explore Windows solutions before I go that route because reinstalling another OS would be inconvenient (but not impossible). I would likely use a version of Backtrack (3 or 4 not sure). I would also have to learn how to access the machine remotely but I've done it before so this would be a minor obstacle. Thank you for your assistance.

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  • SSH Connection Error : No route to host

    - by dewbot
    There are three machines in this scenario: Desktop A : [email protected] Laptop A : [email protected] Machine B : [email protected] All the machines have Ubuntu 11.04 (Desktop A is a 64bit one) and have both openssh-server and openssh-client. Now when I try to connect Desktop A to Laptop A or vice-versa by ssh [email protected] I get an error as port 22: No route to host in both the cases. I own both the machines, now if I try same commands from my friend's machine, i.e. via Desktop B, I can access both my Laptop and Desktop. But if I try to access Desktop B from my Laptop or by Desktop I get port 22: Connection timed out I even tried changing ssh port no. in ssh_config file but no success. Note: that 'Laptop A' uses WiFi connection while 'Machine A' uses Ethernet Connection and 'Machine B' is on an entirely different network. Laptop A && Desktop A - Router/Nano_Rcvr provided to me by ISP. So to one Router two Machines are connected and can be accessed at the same time. here is my ifconfig output for both the machines :- Laptop wlan0 Link encap:Ethernet HWaddr X:X:X:X:00:bc inet addr:1.23.73.111 Bcast:1.23.95.255 Mask:255.255.224.0 inet6 addr: fe80::219:e3ff:fe04:bc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:108409 errors:0 dropped:0 overruns:0 frame:0 TX packets:82523 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:44974080 (44.9 MB) TX bytes:22973031 (22.9 MB) Desktop eth0 Link encap:Ethernet HWaddr X:X:X:X:c5:78 inet addr:1.23.68.209 Bcast:1.23.95.255 Mask:255.255.224.0 inet6 addr: fe80::227:eff:fe04:c578/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10380 errors:0 dropped:0 overruns:0 frame:0 TX packets:4509 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1790366 (1.7 MB) TX bytes:852877 (852.8 KB) Interrupt:43 Base address:0x2000

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  • Want to send my neighbors to a certain website via DNS, but don't have a clue how. [closed]

    - by Akku
    My neighbors have an unsecured WIFI router, and over the administration web-UI of the router I could log in as there was no password set. I don't know which of my neighbors these are, and I'd like to configure their router in a way that they come to my website instead of Google and Facebook, where I set up a warning in german. It this page: http://www.abelssoft.de/liebenachbarn/ Basically, I just want to see if and how this is possible - I'm aware that I could just set the WiFi-password and have them call their network provider to reset the thing, but I really want to see if this could work, because it would be a way cooler effect :-). So this router interface doesn't allow custom redirects, only filters. BUT I can set the DNS that is used, so I thought there might be the possibility to set up a custom DNS on a server, set it as the main DNS and redirect from Google to the URL above. Is this possible? If so, please try to detail a way that I have to go though to achive this. Note that I'm not the super-Linux-skilled person, I have a dyndns account and a Windows machine it points to as well as an Apache+Tomcat if that helps. I could also set up virtual machines on the windows server and redirect to those using a different port. Or is there maybe a webservice that provides such custom DNS?

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  • Does migrating 2 domain controllers between 2 datacentre requires both virtual machines to be shut down at the same time?

    - by Imagineer
    I was attempting to migrate 2 virtual machines that are domain controllers between 2 datacentres running ESX 3.5 and ESX 4.1. I was advised to shut down both domain controller at the same time during the migration process. This is to avoid USN Rollback and other replication issues. The following are the steps that I was planning to perform: 1. Shutdown both DC. 2. Copy both VMs files across to new datacentre using Veeam FastSCP (connection to both vCentre through IP address instead of hostname) 3. Power them up at new datacentre. 4. Configure Network interface/DNS/DHCP for both DCs in new datacentre I have tried to use Veeam FastSCP rather than VMware Standalone Converter is because its copying rather than converting. Someone also suggested that I use backup and restore app like Veeam backup and replication software. Sounds like a simple job, but after shutting down both DCs, the transfer rate using FastSCP is so slow registering only 1KB/s as oppose to the normal 1MB/s (or more). When that attempt to transfer failed, I tried to cold clone both DCs resulted in the both ESX hosts get disconnected. I have tried troubleshooting by referring to this - VMware KB - Diagnosing an ESX Server that is Disconnected or Not Responding in VirtualCenter It seems that the DNS being down is the caused of all unusual occurrence. The moment I powered up the DCs via VMware console command, the ESX host were able to connect to the vCentre again. How can I avoid such a pitfall again? Am I doing it correctly? Any help would be greatly appreciated! Thank you.

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  • IP to IP forwarding with iptables [centos]

    - by FunkyChicken
    I have 2 servers. Server 1 with ip 1.1.1.1 and server 2 with ip 2.2.2.2 My domain example.com points to 1.1.1.1 at the moment, but very soon I'm going to switch to ip 2.2.2.2. I have already setup a low TTL for domain example.com, but some people will still hit the old ip a after I change the ip address of the domain. Now both machines run centos 5.8 with iptables and nginx as a webserver. I want to forward all traffic that still hits server 1.1.1.1 to 2.2.2.2 so there won't be any downtime. Now I found this tutorial: http://www.debuntu.org/how-to-redirecting-network-traffic-a-new-ip-using-iptables but I cannot seem to get it working. I have enabled ip forwarding: echo "1" > /proc/sys/net/ipv4/ip_forward After that I ran these 2 commands: /sbin/iptables -t nat -A PREROUTING -s 1.1.1.1 -p tcp --dport 80 -j DNAT --to-destination 2.2.2.2:80 /sbin/iptables -t nat -A POSTROUTING -j MASQUERADE But when I load http://1.1.1.1 in my browser, I still get the pages hosted on 1.1.1.1 and not the content from 2.2.2.2. What am I doing wrong?

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  • Two internet connections at once in Windows 7

    - by webmasters
    I have a 3G wireless modem and I have a LAN - Right now they are both connected. I need a way to choose which applications will use the 3G connection and which applications will use the LAN. My Operating System is windows 7. How can I do this? Any ideas? Here is a route print: - the 3G modem's IP is 10.81.132.96 Lets say, for example, map google.com to using the 3G internet connection. IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.2.1 192.168.2.102 20 0.0.0.0 0.0.0.0 10.81.132.97 10.81.132.111 286 10.81.132.96 255.255.255.224 On-link 10.81.132.111 286 10.81.132.111 255.255.255.255 On-link 10.81.132.111 286 10.81.132.127 255.255.255.255 On-link 10.81.132.111 286 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.2.0 255.255.255.0 On-link 192.168.2.102 276 192.168.2.102 255.255.255.255 On-link 192.168.2.102 276 192.168.2.255 255.255.255.255 On-link 192.168.2.102 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.2.102 276 224.0.0.0 240.0.0.0 On-link 10.81.132.111 286 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.2.102 276 255.255.255.255 255.255.255.255 On-link 10.81.132.111 286 ===========================================================================

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  • The Story of secure user-authentication in squid

    - by Isaac
    once upon a time, there was a beautiful warm virtual-jungle in south america, and a squid server lived there. here is an perceptual image of the network: <the Internet> | | A | B Users <---------> [squid-Server] <---> [LDAP-Server] When the Users request access to the Internet, squid ask their name and passport, authenticate them by LDAP and if ldap approved them, then he granted them. Everyone was happy until some sniffers stole passport in path between users and squid [path A]. This disaster happened because squid used Basic-Authentication method. The people of jungle gathered to solve the problem. Some bunnies offered using NTLM of method. Snakes prefered Digest-Authentication while Kerberos recommended by trees. After all, many solution offered by people of jungle and all was confused! The Lion decided to end the situation. He shouted the rules for solutions: Shall the solution be secure! Shall the solution work for most of browsers and softwares (e.g. download softwares) Shall the solution be simple and do not need other huge subsystem (like Samba server) Shall not the method depend on special domain. (e.g. Active Directory) Then, a very resonable-comprehensive-clever solution offered by a monkey, making him the new king of the jungle! can you guess what was the solution? Tip: The path between squid and LDAP is protected by the lion, so the solution have not to secure it. Note: sorry if the story is boring and messy, but most of it is real! =) /~\/~\/~\ /\~/~\/~\/~\/~\ ((/~\/~\/~\/~\/~\)) (/~\/~\/~\/~\/~\/~\/~\) (//// ~ ~ \\\\) (\\\\( (0) (0) )////) (\\\\( __\-/__ )////) (\\\( /-\ )///) (\\\( (""""") )///) (\\\( \^^^/ )///) (\\\( )///) (\/~\/~\/~\/) ** (\/~\/~\/) *####* | | **** /| | | |\ \\ _/ | | | | \_ _________// Thanks! (,,)(,,)_(,,)(,,)--------'

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  • How to minimize the risk of employees spreading critical information?

    - by Industrial
    Hi everyone, What's common sense when it comes to minimising the risk of employees spreading critical information to rivalling companies? As of today, it's clear that not even the US government and military can be sure that their data stays safely within their doors. Thereby I understand that my question probably instead should be written as "What is common sense to make it harder for employees to spread business critical information?" If anyone would want to spread information, they will find a way. That's the way life work and always has. If we make the scenario a bit more realistic by narrowing our workforce by assuming we only have regular John Does onboard and not Linux-loving sysadmins , what should be good precautions to at least make it harder for the employees to send business-critical information to the competition? As far as I can tell, there's a few obvious solutions that clearly has both pros and cons: Block services such as Dropbox and similar, preventing anyone to send gigabytes of data through the wire. Ensure that only files below a set size can be sent as email (?) Setup VLANs between departments to make it harder for kleptomaniacs and curious people to snoop around. Plug all removable media units - CD/DVD, Floppy drives and USB Make sure that no configurations to hardware can be made (?) Monitor network traffic for non-linear events (how?) What is realistic to do in a real world? How does big companies handle this? Sure, we can take the former employer to court and sue, but by then the damage has already been caused... Thanks a lot

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  • SBS2011 Standard DNS suddenly not resolving some domains

    - by Matt
    Suddenly today I am unable to resolve common domains like serverfault.com, facebook.com; but other domains like google.com, cnn.com work fine. This is on a client machine (Win7 Pro) connected to an SBS2011 Standard domain. The only DNS server is the SBS2011 server. The same domains work fine on all client PCs I have tried, and the same ones do not work. Using nslookup, I get 'no such domain' errors for facebook.com, and the correct DNS entries for the ones that do work. When I add Google's Public DNS to my client PC as a backup (primary = local SBS server, secondary = 8.8.8.8), everything works fine for my client PC, but querying from the SBS server directly or from other client PCs are broken (so I don't believe it's a firewall issue). My main question is how can I see what servers the SBS2011 server queries if it doesn't know about a domain? There is nothing in our firewall logs that say it blocked any DNS-based packets, but I also wanted to query based on the IP/FQDN on the servers that the SBS server was likely to contact to find out about facebook.com for example. Update 23/05/2012: It appears DNS is working again this morning for the affected websites. Both the DC on its own and all client PCs can once again access the websites that were not loading last night, as well as the websites that were working. I haven't changed anything overnight, so it appears that there was some kind of temporary glitch, but I can't understand what would have caused it on the network.

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  • Cisco configuration for public library internet

    - by AlternateZ
    I'm a C/C++ computer programmer turned IT support guy working for a public library. My day is usually spent helping random grandparents learn how to use email, so my networking knowledge is limited to what I can glean from google. Here's the situation. We have a public library with 20 PCs on a LAN and also public wifi access. Previously we were running all of this on 1 ADSL connection and people complained about low speeds. We hired a networking company to set up a Cisco dual-WAN router for us, and purchased an additional ADSL connection. The intention was to give the LAN PCs a guaranteed amount of bandwidth each, and then let the wifi users split the rest. The results were far worse than what we expected, and all we got from the company was excuses and they've since washed their hands of us. During busy periods, net performance on the LAN PCs are so poor that attaching files to gmail etc often times out and fails - far from the "guaranteed amount of bandwidth each" that we hope for! Sometimes it feels like performance is worse than before when we had 1 ADSL link and an unconfigured router? Anyways, surely this is a problem encountered a million times over across the world? (Sharing internet across many users effectively.) What are standard solutions for something like this? I admit to not even knowing the right jargon to google for (load balancing?) I'd appreciate any links to resources/guides that might help me get a better understanding of the problem/solutions, and perhaps some stories of your own experience in solving similar problems. This will help us evaluate and negotiate with network consultants in the future. If its relevant, our router config contains a section "policy-map" with "bandwidth percent" for each class of user (LAN, wifi), and "fair queue".

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  • DNS lookup fails when with all the MAC workstations

    - by user39564
    Hi, I am having this insane problem. We are mac-heavy users. Around 10 workstations, one Xserve server, two windows workstation and one Linux (me). Last year I added an A record to our domain's DNS. However we had to change that a few months ago to a new IP. But all the Mac workstations fail to resolve the proper DNS and they still resolve to the old IP, even after 2 months. On both the windows workstation and my linux box a simple nslookup resolves to proper IP. However, on ALL the mac workstation, dig and nslookup report the old IP address. From my linux workstation: jp@lo:~$ nslookup - 208.67.222.222 client.xyz.com Server: 208.67.222.222 Address: 208.67.222.222#53 Non-authoritative answer: Name: client.xyz.com Address: 68.71.40.xx But when I am trying the exact same command from any Mac workstation, I get the old IP: $ nslookup - 208.67.222.222 client.xyz.com Server: 208.67.222.222 Address: 208.67.222.222#53 Non-authoritative answer: Name: client.xyz.com Address: 98.143.155.xx The strange thing is that this only happens in our internal network. No problem from home nor from another server. I did try to flush the DNS, don't worry. It did not help. I am starting to wonder if my router (OpenWRT) or Mac OS X Server is not in some way spoofing the DNS request and thus acting as a cache. Any suggestions/comments would be grateful. Thank you, JP

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  • Synchronize Dreamweaver over an SSH tunnel using an SFTP connection

    - by Aeo
    Maybe... Just maybe... I'm asking too much here. Maybe I'm even barking up the wrong tree. I'm looking to essentially have Dreamweaver establish an SSH tunnel to one machine, and then use that connection to synchronize a site that is on another machine entirely. Now for some details: We've got two connections here at work. We've got our office connection for day to day business, and then we've got some fancy connection hosting our web servers upstairs. For the most part they've been mutually exclusive until recently. We had been establishing an SFTP connection to synchronize our web sites by going out over the office connection to the web and coming back in over the fancy connection to our servers upstairs. Recently -ish, we established a LAN connection to one of our servers that makes a pleasant change in VNC connection quality. Thanks to Vinagre, this makes it really easy to connect to any of our servers over this LAN connection via SSH tunnel for VNC. However, in spite of that new addition of a LAN connection, we still synchronize over the 'net. Out the office connection and in on the fancy one upstairs. I'm looking to change this. I'd like to get Dreamweaver to first tunnel over our LAN connection to the servers, and then go from there to whatever connection it needs to. Am I asking too much? The current set up: Dreamweaver is installed on Windows XP which is running within VirtualBox on top of Ubuntu 10.10. The network connection for VirtualBox is currently made in NAT mode, but could easily be switched to a Bridged Connection should it need be. The LAN connection is to 1 of 5 servers running CentOS 5.

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  • ApplicationPoolIdentity IIS 7.5 to SQL Server 2008 R2 not working.

    - by Jack
    I have a small ASP.NET test script that opens a connection to a SQL Server database on another machine in the domain. It isn't working in all cases. Setup: IIS 7.5 under W2K8R2 trying to connect to a remote SQL Server 2008 R2 instance. All machines are in the same domain. Using the ApplicationPoolIdentity for the web site it fails to connect to the SQL Server with the following: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'. However if I switch the Process Model Identity to NETWORK SERVICE or my domain account the database connection is successful. I've granted the \$ access in SQL Server. I am not doing any sort of authentication on the web site, it is just a simple script to open a connection to a database to make sure it works. I have Anonymous Authentication enabled and set to use the Application pool identity. How do I make this work? Why is the ApplicationPoolIdentity trying to use ANONYMOUS LOGON? Better yet, how do I make it stop using the Anonymous logon?

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  • Windows 7 Taskbar resets on every login

    - by Arne Mertz
    I like to reorder my Taskbar a bit, other than the Windows 7 default is. I use two "rows", the lower is for quicklaunch and other toolbars: This works perfectly, as long as I don't log off from the computer. Every time I log in, Windows 7 has messed up/reset the toolbar positions like this: So I have to drag them into position again and again, every morning. Fixing the taskbar positions won't help, I tried to google for the problem but it does not seem to be very common. Does anyone recognize that problem and has a solution? Update: This is not the AutoLogon bug. AutoLogon is off. We have installed Novell at our company, and it does not matter wether I log directly onto the Novell network or only to the computer first and to Novell later. Update2: I get the same issue when I logon without Novell, i.e. when I log on only to the computer. When I boot in safe mode, the taskbar looks essentially the same: Update3: KB979155 says it's "not applicable to my system". Creating a neew user is not an option since I don't have the admin privileges to do that - I have almost any other local admin privileges, though.

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  • Ubuntu - wireless connection works great but wired is totally dead

    - by Dan
    I am running Ubuntu 10.04 on my Acer Aspire One netbook. The wireless connection works great, but the wired is totally dead. When I plug the Ethernet wire, the little led next to the port doesn't blink. If I do ifconfig, this is the output: 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:16436 Metric:1 RX packets:1659 errors:0 dropped:0 overruns:0 frame:0 TX packets:1659 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:132304 (132.3 KB) TX bytes:132304 (132.3 KB) wlan0 Link encap:Ethernet HWaddr 18:f4:6a:65:48:1f inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::1af4:6aff:fe65:481f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:94823 errors:0 dropped:0 overruns:0 frame:0 TX packets:81390 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:93028474 (93.0 MB) TX bytes:18002558 (18.0 MB) There is no eth0. Is that normal? In the "Network Connections" GUI there is an entry "Wired connection 1", its "MAC address" field is blank. How can I make the wired connection work?

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  • Write once, read many (WORM) using Linux file system

    - by phil_ayres
    I have a requirement to write files to a Linux file system that can not be subsequently overwritten, appended to, updated in any way, or deleted. Not by a sudo-er, root, or anybody. I am attempting to meet the requirements of the financial services regulations for recordkeeping, FINRA 17A-4, which basically requires that electronic documents are written to WORM (write once, read many) devices. I would very much like to avoid having to use DVDs or expensive EMC Centera devices. Is there a Linux file system, or can SELinux support the requirement for files to be made complete immutable immediately (or at least soon) after write? Or is anybody aware of a way I could enforce this on an existing file system using Linux permissions, etc? I understand that I can set readonly permissions, and the immutable attribute. But of course I expect that a root user would be able to unset those. I considered storing data to small volumes that are unmounted and then remounted read-only, but then I think that root could still unmount and remount as writable again. I'm looking for any smart ideas, and worst case scenario I'm willing to do a little coding to 'enhance' an existing file system to provide this. Assuming there is a file system that is a good starting point. And put in place a carefully configured Linux server to act as this type of network storage device, doing nothing else. After all of that, encryption on the files would be useful too!

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  • bond0:0 + define virtual IP

    - by yael
    hi all in my linux server I have the follwoing: Linux Version - RedHat-Linux- 5.3.0.0 (this linux server only only one LAN) more /etc/sysconfig/network-scripts/ifcfg-bond0:0 DEVICE=bond0:0 ONBOOT=yes BOOTPROTO=static IPADDR=10.10.10.12 NETMASK=255.255.255.0 ifconfig -a bond0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 UP BROADCAST MASTER MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) bond0:0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:10.10.10.12 Bcast:1.1.1.255 Mask:255.255.255.0 UP BROADCAST MASTER MULTICAST MTU:1500 Metric:1 eth0 Link encap:Ethernet HWaddr 00:0E:0C:C7:F8:92 inet addr:1.1.1.1 Bcast:1.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::20e:cff:fec7:f892/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8600 errors:0 dropped:0 overruns:0 frame:0 TX packets:4764 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:717979 (701.1 KiB) TX bytes:598620 (584.5 KiB) Memory:b8820000-b8840000 my problems: why I get HWaddr 00:00:00:00:00:00 and not the real MAC address I cant ping to other server with 10.10.10.11 from my server is it posible to define bond0:0 when I have only one LAN (eth0) other info: more /etc/modprobe.conf alias eth0 e1000e alias eth1 e1000e alias eth2 e1000e alias eth3 e1000e alias scsi_hostadapter mptbase alias scsi_hostadapter1 mptsas alias scsi_hostadapter2 ata_piix alias bond0 bonding alias bond1 bonding

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  • bond0:0 + define virtual IP

    - by yael
    hi all in my linux server I have the follwoing: Linux Version - RedHat-Linux- 5.3.0.0 (this linux server only only one LAN) more /etc/sysconfig/network-scripts/ifcfg-bond0:0 DEVICE=bond0:0 ONBOOT=yes BOOTPROTO=static IPADDR=10.10.10.12 NETMASK=255.255.255.0 ifconfig -a bond0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 UP BROADCAST MASTER MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) bond0:0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:10.10.10.12 Bcast:1.1.1.255 Mask:255.255.255.0 UP BROADCAST MASTER MULTICAST MTU:1500 Metric:1 eth0 Link encap:Ethernet HWaddr 00:0E:0C:C7:F8:92 inet addr:1.1.1.1 Bcast:1.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::20e:cff:fec7:f892/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8600 errors:0 dropped:0 overruns:0 frame:0 TX packets:4764 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:717979 (701.1 KiB) TX bytes:598620 (584.5 KiB) Memory:b8820000-b8840000 my problems: why I get HWaddr 00:00:00:00:00:00 and not the real MAC address I cant ping to other server with 10.10.10.11 from my server is it posible to define bond0:0 when I have only one LAN (eth0) other info: more /etc/modprobe.conf alias eth0 e1000e alias eth1 e1000e alias eth2 e1000e alias eth3 e1000e alias scsi_hostadapter mptbase alias scsi_hostadapter1 mptsas alias scsi_hostadapter2 ata_piix alias bond0 bonding alias bond1 bonding

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  • Restoring a fresh home folder in a shared user domain environment

    - by Cocoabean
    I am using a tool called pGINA that adds another credential provider to my Windows 7 clients so we can authenticate campus users via campus LDAP. We have the default Windows credential providers setup to authenticate off of our Active Directory, but we have students in our classes that don't have entries in our AD, and we need to know who they are to allow them internet access. Once these LDAP users login using pGINA, they are all redirected to the same AD account, a 'kiosk' account with GPOs in place to prevent anything malicious. My concern is that my users will accidentally save personal login information or files in that shared profile, and another user may login later and have access to a previous user's Gmail account, as the AppData folder on each computer is shared by anyone logging into the kiosk user. I've looked into MS's 'roll-your-own' SteadyState but it didn't seem to have what I wanted. I tried to write a PS script to copy a pre-saved clean version of the profile from a network share, but I just kept running into issues with CredSSP delegation and accessing the share from the UNC path. Others have recommended something like DeepFreeze but I'd like to do it without 3rd party tools if possible.

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  • Consulting: Organizing site/environment documentation for customers?

    - by ewwhite
    Over time, I've taken on consulting and contract engineering work for various clients. More recently, customers are asking for certain types of documentation. These are small businesses and typically do not have dedicated technical staff. Within a single company, Wiki/Confluence/Sharepoint, etc. all make sense as a central repository for documentation and environment information. I struggle with finding a consistent method to deliver the following information to discrete customers. I'm shooting for a process that's more portable, secure and elegant than a simple spreadsheet or the dreaded binder full of outdated information. Important IP addresses, DHCP scope, etc. Network diagram (if needed). Administrative usernames and passwords and management URLs. Software license keys. Support contracts and warranty information. Vendor support contacts and instructions. I know there are other consultants here. Any suggestions or tips on maintaining documentation across multiple environments in a customer-friendly format? How do you do it?

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  • Server-side SSH jump hosts

    - by Dan Sosedoff
    Trying to figure out server side SSH jump hosts logic. Current network schema: [Client] <--> [Server A: hostname: a.com] <--> [Server B] [Client] <--> [Server A: hostname: b.com] <--> [Server C] Server A responds to both DNS records. Possible flow: Client opens a ssh connection with ssh [email protected]. Server A accepts it and should automatically jump user onto Server B with ssh user2@server_b.com. Client opens a ssh connection with ssh [email protected]. Server A accepts it and should automatically just user onto Server C with ssh user2@server_c.com. In other words, client should be able to connect to the target without performing any local configuration, assuming that we have a stock ssh config. The problem with ssh jumps is that user has to define hosts in local ~/.ssh/config file, which is not acceptable in my case. It needs to be a default sshd behavior. Im aware that you can define a custom command ~/.ssh/authorized_keys on server, but i dont think there is a way to properly detect source hostname where user tries to connect. It is possible at all ?

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  • Automatic o/s reset on a dedicated internet browsing Windows 7 pc.

    - by camelCase
    I have just purchased a new Acer Revo nettop PC for dedicated internet browsing. It will be the only pc on a home network. My original plan was to install one virtual PC for family browsing, another for remote web based server administration and ban browser use from the host Windows 7 o/s. The idea was that I could recover to a fresh VHD image once a week to eliminate any build up of malware inside the browser VMs. However now I am looking for alternative solutions since the Intel Atom cpu does not have hardware VT support which Windows Virtual PC requires. Would it be possible to engineer some type of routine overnight host o/s wipe and recovery? I guess cyber cafes do something like this? The only user data that would need to be retained across a recovery would be browser bookmarks but these could be exported to remote service. Edit 1: I am thinking the o/s reset could be done via some disk image recovery process. Edit 2: Just had a brainwave. Routine browsing could be done via the new Google Chrome O/S. I have just seen a video of the Google Chrome o/s booting off a usb pen drive in seconds.

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