Search Results

Search found 18700 results on 748 pages for 'isolated network'.

Page 580/748 | < Previous Page | 576 577 578 579 580 581 582 583 584 585 586 587  | Next Page >

• Create True VLAN over RAS

  - by Bigbohne

  Hi, I was wondering if it's possible. I want to create a virtual network over RAS using Windows Server 2003. The Client should be able to connect to the server using L2TP and should get an IP Adress from a private Range (lets say 192.168.1.100 - 192.168.1.200 and a subnetmask of 255.255.255.0). Now each client connected to the server should be able to ping another connected client. e.g. 192.168.1.123 <- 192.168.1.145 via RAS via the server. Is this possible? And ... how ? best regards, andre

  Read the article

• What is the "real" difference between a NAS and NFS? Or, why pick a NAS device over "mere" NFS?

  - by warren

  From an end-user perspective, what is the difference between a NAS device and using NFS exports from a file server? They seem to accomplish the same end result. The difference between a SAN and other file storage is related (in my experience) to how they are connected to the server infrastructure. However, the difference between a NAS, connecting over a standard ethernet port, and NFS (sharing storage off specific servers, also over the network), seems more nebulous. Is there a good reason to pick a NAS filer over just running NFS on servers?

  Read the article

• How to check the OS is running on bare metal and not in virtualized environment created by BIOS?

  - by Arkadi Shishlov

  Is there any software available as a Linux, *BSD, or Windows program or boot-image to check (or guess with good probability) the environment an operating system is loaded onto is genuine bare metal and not already virtualized? Given recent information from various sources, including supposed to be E.Snowden leaks, I'm curious about the security of my PC-s, even about those that don't have on-board BMC. How it could be possible and why? See for example Blue Pill, and a number of papers. With a little assistance from network card firmware, which is also loadable on popular card models, such hypervisor could easily spy on me resulting in PGP, Tor, etc. exercises futile.

  Read the article

• How much does a IPtables router slow down a connection?

  - by RayQuang

  Hi, I would like to know if introducing a new gateway in my network will slow things down. The question may sound unclear but here is an illustration: Before Installing gateway server Main Router <=> switches <=> servers after installing gateway Server Main Router <=> IPtables router <=> switches <=> servers My question is. How much will this delay incoming outgoing requests / file transfers. thanks, RayQuang

  Read the article

• Best way to backup Active Directory with a single domain controller

  - by John Hall

  I have a domain with about 15 users and a single Windows Server 2008 domain controller. Some recent issues with my RAID controller have made me reconsider how I go about securing the AD data. Currently I run a System State Backup nightly. However, it seems that it is impossible (or at least difficult and unsupported) to restore that to any other machine than the one from which it was taken. Adding a second DC to the domain seems expensive and overkill for such a small network. Is there no other way to backup the AD data?

  Read the article

• Vim: How can I :cd to an sftp directory?

  - by ChrisInCambo

  Hi, I'm currently an emacs user, but thought I would come back and take another look at Vim for fun. My client machine is Ubuntu, and I frequently work on other ubuntu servers within my network, emacs and tramp is really nice in this regard, I can just connect to a file via sftp and then easily navigate to it's parents/children/sibling, just as if I was dealing with a file on the local file system. With Vim I can sftp to a file, but none of the navigation stuff works, when I use :e or fuzzy file search, vim still thinks I'm back on the client machine. If I try to :cd to the sftp directory I get an error. Is there anyway I can get the same file/folder navigation regardless of whether I'm looking at an sftp folder or a folder on my client machine? Cheers, Chrsi

  Read the article

• WIFI/LAN not working after Installing Ubuntu 13.10

  - by user183025

  I can't connect to my WIFI after installing Ubuntu 13.10. I tried re-installing it three times (thinking that I did something wrong during the installation) but I still can't connect to my WIFI. It just gives me the message that I'm offline and that I can't connect to my WIFI. I also tried connecting to the internet using LAN cable but with the same results. I tried google but it seems that there's no solution to this yet.... Anybody knows how to solve this? Thanks! FYI: H/W path Device Class Description ====================================================== system RC530/RC730 (To be filled by O.E.M.) /0 bus RC530/RC730 /0/0 memory 64KiB BIOS /0/4 processor Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz /0/4/5 memory 32KiB L1 cache /0/41 memory 4GiB System Memory /0/41/0 memory DIMM [empty] /0/41/1 memory 4GiB SODIMM DDR3 Synchronous 1333 MHz (0.8 ns) /0/100 bridge 2nd Generation Core Processor Family DRAM Controller 02:00.0 Network controller: Intel Corporation Centrino Wireless-N 130 (rev 34) Subsystem: Intel Corporation Centrino Wireless-N 130 BGN Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at f7200000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: iwlwifi Kernel modules: iwlwifi 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: Samsung Electronics Co Ltd Device c0c1 Flags: bus master, fast devsel, latency 0, IRQ 41 I/O ports at b000 [size=256] Memory at f2104000 (64-bit, prefetchable) [size=4K] Memory at f2100000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: r8169 Kernel modules: r8169

  Read the article

• Number of malicious attacks defended/done on the average user daily [closed]

  - by DalexL

  As a web hoster, it is very easy to notice the large amounts of exploit/abuse attempts done on my servers. Out of curiosity, how often are these attempts done on the average user? I'm assuming almost all of them are prevented just by simple security protocols in place by their browsers, local network, etc. How many attempts, on average, are committed against a single user daily through any method? (email, internet, downloads, etc.)? If known, what percentage of these things are blocked by the average users security? I tried googling but I was having a hard time getting the right search terms together.

  Read the article

• Can an UPS be too powerful?

  - by Andy

  Our old network admin bought the top range UPS a few months ago but never came around to setting it up and is no longer with the company. Now the old UPS broke down and needs to be replaced, but an external company that did an audit said that that UPS won't work. Now we are no hardware specialists, but the difference in specs is a higher output from 5A to 8.8A meaning a higher output. But isn't the UPS supposed to give the server the required output anyway? This 'independent' audit does sell its own hardware including UPSes so I'm not sure how much bias they have. Is there a reason why we can't replace the old broken UPS with the new more powerful one? Is there a way we can check to see if the UPS works with our server? ok, i wrote down the numbers again, the Volts and Amps are what are on the back (where you connect up the plugs which seem diffrent from on the front label.) old one APC SmartUPS 1500 220-240V -- 6.8A new one Dell UPS 1920W 250V -- 10A

  Read the article

• Syncing Large Directories/Filesystems using USB Drive

  - by Alan Lue

  Does anyone have a solution for syncing large directories/filesystems using just a USB flash drive (and specifically without using a network connection)? The objective is simply to sync a user directory between two computers. The contents of the user directory could amount to a large quantity of data—say, a quantity larger than could be stored on any single USB drive—but the aggregate size of changes that must be propagated by a single sync could easily fit on a USB drive. As an example, suppose a user directory is already synchronized between a desktop and a laptop computer. Here's a use case: Some changes are made in the user directory on the desktop. We mount a USB drive onto the desktop and copy whatever changes need to be applied to the laptop user directory in order to synchronize the desktop and laptop user directories. We now mount the USB drive onto the laptop and apply the changes. The desktop and laptop user directories are now synchronized. Any ideas? Alan

  Read the article

• Where does traffic shaping typically take place?

  - by eekmeter

  As part of upgrading our network infrastructure we are looking to traffic shape our bandwidth since we only have about 3Mb down / 1 Mb up. We're looking to prioritize it so that web browsing gets priority and in the future some VOIP might be added in as well. Internal LAN traffic doesn't need to be controlled just our outbound connection. I've been looking at Cisco hardware and it seems that several of their products do shaping at the core switch, firewall, and router level. I'm wondering where does shaping normally take place? Is it normally done at the router, core switch, or firewall?

  Read the article

• Access server bound to localhost:5000 from different computer

  - by Jesse

  I am working on a web application using the Pylons framework. The web server is binding to localhost:5000 so I am able to access my application by going to localhost:5000 in my browser. I would like to be able to access the server from another computer on the same network. The computer that is hosting the server and application is running Mac OSX and the computer I would like to be able to access the application is running Windows 7 (I have cygwin with SSH installed as well as PuTTY). I could work around this by binding to the host name of the computer but would rather leave it running only on localhost. I was thinking I could do something with SSH tunneling but have not had any luck so far. Any ideas?

  Read the article

• Tell the linux kernel to put a file in the disk cache?

  - by Rory

  Is there any command to for a file to be read in and loaded into the linux disk cache? This is on an up-to-date debian system. I know in the general case, it's better to let the linux kernel figure this out. But I have an edge case. I have a laptop that has an NFS director mounted, and i want to play a long video file, but I don't want to have a network problem interrupt the playnig. I know that (largeish) file will be read in it's entirety later on. I know that nothing else (really) will be running while playing this video. There is enough free memory to store this file. (I know I could just copy the file into a new tmpfs filesystem, but I'm curious if there's an even shorter way to do it)

  Read the article

• Nagios: Is it possible to have multiple IPs for a host?

  - by Aknosis

  In our office we have dual WAN setup, if our cable connection drops we still get connectivity via our T1. The only issue is that our office network is no longer available on the same IP so all Nagios check go critical because they can't connect. What'd be awesome is if I could have Nagios try IP 1 by default but if for some reason its failing on that IP try IP 2. I doubt this is possible with a default install but I'm wondering if there is any add-ons or some other magic that could make this work?

  Read the article

• What is involved with writing a lobby server?

  - by Kira

  So I'm writing a Chess matchmaking system based on a Lobby view with gaming rooms, general chat etc. So far I have a working prototype but I have big doubts regarding some things I did with the server. Writing a gaming lobby server is a new programming experience to me and so I don't have a clear nor precise programming model for it. I also couldn't find a paper that describes how it should work. I ordered "Java Network Programming 3rd edition" from Amazon and still waiting for shipment, hopefully I'll find some useful examples/information in this book. Meanwhile, I'd like to gather your opinions and see how you would handle some things so I can learn how to write a server correctly. Here are a few questions off the top of my head: (may be more will come) First, let's define what a server does. It's primary functionality is to hold TCP connections with clients, listen to the events they generate and dispatch them to the other players. But is there more to it than that? Should I use one thread per client? If so, 300 clients = 300 threads. Isn't that too much? What hardware is needed to support that? And how much bandwidth does a lobby consume then approx? What kind of data structure should be used to hold the clients' sockets? How do you protect it from concurrent modification (eg. a player enters or exists the lobby) when iterating through it to dispatch an event without hurting throughput? Is ConcurrentHashMap the correct answer here, or are there some techniques I should know? When a user enters the lobby, what mechanism would you use to transfer the state of the lobby to him? And while this is happening, where do the other events bubble up? Screenshot : http://imageshack.us/photo/my-images/695/sansrewyh.png/

  Read the article

• 2 Nics - Same Subnet..Route backup traffic through one of them

  - by Matthewhall58

  I have a windows server and a centos linux server. I want the nightly backup file (targz) that copies to the windows machine to use a different nic so that the main nic is not burdenend with moving the large file. Each server has 2 Nics in it. the network is 10.173.10.0 mask 255.255.255.192 Centos Linux Box: Eth0 is configured with 10.173.10.80 mask 255.255.255.192 gw 10.173.10.65 Eth 1 is configured with 10.173.10.71 mask 255.255.255.192 gw 10.173.10.65 Windows Box Eth 0 is 10.173.10.72 mask 255.255.255.192 gw 10.173.10.65 Eth 1 is 10.173.10.70 mask 255.255.255.192 gw 10.173.10.65 I can ping each machine from each machine. On the linux machine I use the command route add -host 10.173.10.70 dev eth1 but then when i ping 10.173.10.70 it is unreachable..... WHY?

  Read the article

• DNS issues on my iPhone

  - by mattalexx

  I'm trying to call up "https://m.google.com" on my iPhone on my home WiFi. It's saying Safari "cannot verify server identity" of m.google.com, then when I press Details, it refers to https://m.google.com as "mattserver". "mattserver" is the name of my development server, a Linux box on my home network. This stinks of DNS issues to me. Accessing the unsecure version of that URL ("http://m.google.com") gives me a blank page. What could be going on here? Is there a way to look at the logs of my router somehow?

  Read the article

• Error page for OWA users on a different server?

  - by W_P

  We are getting ready to do a network-wide upgrade to Exchange 2010. The url for the old 2007 mailboxes is at https://mail.example.com and users who have had their mail box moved will have to go to https://Email.example.com If a user that has a 2010 mailbox attempts to login at the 2007 OWA location, they get a standard 403 Forbidden page. We would like to show them a page of our own making, that includes a link to the 2010 OWA login page. I assumed we could do this with an IIS Custom Error page, but setting the 403.4 error page in IIS on the Default web site doesn't seem to be working. Does anyone know how we could get around this? BTW, our OWA for the 2007 boxes in on Windows Server 2003, and IIS 6

  Read the article

• High CPU Steal percentage on Amazon EC2 Instance

  - by Aditya Patawari

  I am experiencing high CPU steal percentage in a Amazon EC2 large instance. I know it means that my virtual CPU is waiting on the real CPU of the machine for time. My question is that what can I do to reduce this percentage and get maximum out of the CPU? Steal percentage is consistently at 20%. System load crosses 10 when this happens. I have checked memory and network and I am sure that they are not the bottleneck. Is that normal for such environment? Also are there any system level optimization techniques for reducing steal percentage form the virtual instance? avg-cpu: %user %nice %system %iowait %steal %idle 52.38 0.00 8.23 0.00 21.21 18.18

  Read the article

• Finding the length of files and file path of directory structure in a Linux file system.

  - by Robert Nickens

  I have a problem on a Linux OS running a version of SMB where if the absolute path to a directory within a Shared Folder is greater than 1024 bytes and the filename component is greater than 256 bytes the SMB service crashes and locks out all other services for network access like, SSH and FTP rendering the machine mute. To keep the system for crashing I’ve temporarily moved a group of folders where I think the problem path may be located outside of Shared Folder. I need to find the file and file path that exceeded this limitation and rename them or remove them allowing me to return a bulk of the files to the Shared Folder. I’ve tried the find and grep commands without success. Is there a chain of commands or script that I can use to hunt down the offending files and directory? Please advise.

  Read the article

• Build Advise for Home Web/NAS Server with Ubuntu Server 12.04 [closed]

  - by razor7

  I need to have a personal Webserver with NAS capabilities. The Webserver to test some LAMP projects I develop for clients, and also NAS to be able to stream media to local network. I want to have full control of the box, so I'm planning to build it with some spare parts and Ubuntu Server. The services/software that will run are (remember, is for personal and testing use only): SAMBA/CIFS SSH Server Apache 2 MySQL 5 Mercurial Repo PHP 5.3 Ruby on Rails OwnCloud Dovecot Webmin Postfix PureFTPd ClamAV The Hardware: Intel Dual Core E2180 2.0 GHz MSI P35 Neo Kinkston 1GB DDR2, 667 MSI Nvidia 7300le PCIe x16 256mb RAM HDD SATA WD Green 2TB x2 (RAID-1 with MDADM RAID Controller) 16 GB USB Pendrive (For server system installation) My idea is to build this system, using the pendrive for the Ubuntu Server software, and packages, and the RAID-1 for gross data storage. What do you think? Thanks a lot!

  Read the article

• How to access Ubuntu Server from local PC?

  - by Roland

  Today I installed my first web server, which is Ubuntu 12.04 LTS. I got Apache, PHP and MySql working, there is even MyPHPAdmin! Everything is working fine on that PC, but the problem is that I have no idea how to connect to this server from my PC. Just to clarify- I got one PC that I work on and got another one, which has Ubuntu Server running. I even managed to connect them through the router, which I made to work as a switch. I can see the Ubuntu Server on my Windows PC in "Network", but it's empty, I can't see any files. I tried to share a folder etc/www on Server, but it shows an error saying something about right, that I'm not this folder's owner. I guess I'm not doing the right thing at all, am I? Even if I could see shared folder on my Windows PC- I would still be not able to type "somedomain.com" on Windows PC and access for example index.php or MySql database. So, the question is- how do I configure Ubuntu Server to be accessible from Windows PC?

  Read the article

• How to configure multiple addresses on a single interface using Fedora 16

  - by cg.

  I upgraded from Fedora 14 to 16, recently. I had two static IP v4 addresses configured on my ethernet interface by creating two files in /etc/sysconfig/network-scripts: ifcfg-eth0 -> first address ifcfg-eth0:1 -> second address After the upgrade, this resulted in an error message during the boot process and in only the second address being successfully configured on the interface. So, what is the correct way to configure multiple addresses on a single interface on Fedora 16? I could not find anything on this subject in the documentation so far.

  Read the article

• AD Local Admins without password sharing

  - by Cocoabean

  My team is building out an Active Directory environment in a small grad school with support for general computer labs, and staff/faculty machine and account management. We have a team of student consultants that are hired to do general help desk work. As of now we have a local admin account on every machine. It has the same password and all of us know it. I know it's not best practice and I want to avoid this with the new setup. We want to have local admin accounts in case there are network issues that prevent AD authentication, but we do not want this account to be generic with a shared password. Is there a way we can get each machine to cache the necessary information to authenticate a group of local admins so that if AD is somehow inaccessible, student consultants can still login with their AD admin accounts?

  Read the article

• Citrix Xen VM's lose networking

  - by Ash

  My client has a XenServer 6.0.2 installation with 2 Window Server 2008 R2 virtual machines. Whenever the virtual machines are rebooted they lose their IP settings (IP address, subnet, gateway). Each time after a reboot I need to login to each VM via XenCenter and re-apply the required static IP settings. This causes issues with connected iSCSI drives within each VM - drives need to be reconnected after each reboot. For example, a network adapter has the following settings pre-reboot: Description . . . . . . . . . . . : Citrix PV Ethernet Adapter #0 Physical Address. . . . . . . . . : C6-FB-A2-4F-2C-F3 IPv4 Address. . . . . . . . . . . : 10.101.0.101(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.101.0.10 DNS Servers . . . . . . . . . . . : 10.101.0.100 NetBIOS over Tcpip. . . . . . . . : Enabled Post-reboot: Description . . . . . . . . . . . : Citrix PV Ethernet Adapter #0 Physical Address. . . . . . . . . : C6-FB-A2-4F-2C-F3 Autoconfiguration IPv4 Address. . : 169.254.153.174(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : 10.101.0.100 NetBIOS over Tcpip. . . . . . . . : Enabled Under XenCenter -- Virtual Network Interfaces, each adapter is set to a static MAC address (i.e. "Use this MAC address"). I have tried the following commands within one VM but this had no effect: netsh winsock reset catalog netsh int ip reset Can someone please help?

  Read the article

< Previous Page | 576 577 578 579 580 581 582 583 584 585 586 587  | Next Page >