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• Windows 7 - ICS - Xbox360

  - by Hailwood

  I am trying to connect my xbox360 to the internet through ICS using my laptop. I have done this a few days ago using the exact same hardware(so no hardware problems) The laptop can browse the internet. The laptop gets its settings though DHCP. I have enabled ICS on the Wireless connection (where the internet is coming from) I have set the xbox and the Wired connection on the laptop to obtain settings automatically. The issue is that the Wired connection only shows 'Unidentified Network'. What could i be doing wrong?

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• Binding services to localhost and using SSH tunnels - can requests be forged?

  - by Martin

  Given a typical webserver, with Apache2, common PHP scripts and a DNS server, would it be sufficient from a security perspective to bind administration interfaces like phpmyadmin to localhost and access it via SSH tunnels? Or could somebody, who knew eg. that phpmyadmin (or any other commonly availible script) is listening at a certain port on localhost easily forge requests that would be executed if no other authentication was present? In other words: could somebody from somewhere in the internet easily forge a request, so that the webserver would accept it, thinking it originated from 127.0.0.1 if the server is listening on 127.0.0.1 only? If there were a risk, could it be somehow dealt with on a lower level than the application, eg. by using iptables? The idea being, that if someone found a weakness in a php script or apache, the network would still block this request because it did not arrive via a SSH-tunnel?

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• Map localhost to IP address on Windows XP & Internet Explorer 7+?

  - by roblocop

  I'm trying to map 'localhost' to an IP address elsewhere on the network, say '10.0.1.1' for example. I've tried editing my hosts file, changing the entry from: 127.0.0.1 localhost to 10.0.1.1 localhost with no luck. The closest I've gotten is using DNS spoofing via Charles. Adding a DNS spoof entry mapping the host name 'localhost' to '10.0.1.1' works fine in Firefox, but fails in Internet Explorer, basically showing IE's 404 page. I'm wondering if there's some specific setting or way I can get DNS spoofing to work in IE? The main issue I'm trying to resolve is that our development environment points to 'localhost' and rather than setting the dev env up in a legacy Windows laptop to try and debug, point to a server that has it all setup and I can make the changes remotely.

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• Outlook and exchange 2010 stalls email

  - by lbanz

  User found an old pst file which is around 15GB and imported to his exchange mailbox. It imported fine. Outlook client starts syncing the emails to exchange. It stalls and then the user will need to reopen the client for it to sync again. The client doesn't crash and still continues to receive new emails but it just doesn't sync the old emails. Sits on Updating folders but doesn't do anything. Shows no sync or conflicts in the client. No errors on progress and Outlook network connection seems fine.

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• What is the "real" difference between a NAS and 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 standard ethernet, 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 NFS on servers?

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• Slow performance with WAMP localhost access from other devices

  - by Adam

  I setup a localhost WAMP server and other device can access my localhost site on my win8 laptop with computer name instead of IP (bc I have use DCIP so that the wireless router can assign me IP otherwise it will not work). However, problem is that the website (WordPress), access speed is extremely slow on other devices other than my localhost computer, usually a 3s task take at least 10 seconds. (i.e. view my localhost site with computer name in a phone within the same wireless network.) Is that normal? What could be the reason causing it? Thank You

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• Ubuntu, connecting to WEP

  - by Holly

  Hello, I successfully installed Ubuntu onto my usb hard drive. However, I'm not sure what the issue is with my internet. I'm not familiar enough with ubuntu to know whether this is a problem with recognizing my wireless card or with my internet, etc. So I suppose my question is, how do I tell whether it's recognizing my wireless card? (Network manager isn't showing any wireless signals, though I wasn't sure if it was supposed to. ) And, if it's not working, how do I go about troubleshooting that issue? Thanks!

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• Advertising on personalized pages behind a login

  - by johneth

  I am currently building a web app which requires a user to log in. After they log in, they can see the content they've added to the web app, and things that the web app has done with the content they added. The URL structure won't differentiate different users (e.g. all user's 'homepage' would be example.com/home, not something like example.com/username/home). This is much the same way that Facebook works (all FB user's messages are at facebook.com/messages, for example). This presents a problem with advertising. I know that you can use AdSense behind a login, but as far as I'm aware, that's for things like forums, where everyone sees the same things (which wouldn't be the case in this site). I also know that I could put AdSense on the pages without allowing it to log in, which would produce inferior ads. I'm fairly certain it would be against the Terms of Service to give AdSense a login to a 'dummy' account with typical content, as it would not be seeing the same thing as every other user (which is impossible, as they all see different things). So, my question is: Is there an ad network, or other method, that can serve ads behind a login, maybe based on keywords rather than content?

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• Ubuntu 9.10 Dowload Speed Very Slow

  - by Don

  I'm running Ubuntu 9.10 desktop and I'm new to the Linux world, so bear with me. I'm on a corporate network of 3 T1s shared across 50-60 users. I typically get about 300 KB/sec for downloads, but for whatever reason, the Linux box will start out in that range, then drop to less than 1KB/Sec sometimes. Doesn't seen to matter where I'm downloading from. Right now I'm trying to get Eclipse for PHP and it's running at 3-6KB/sec. Getting the updates for the system will also drop to very slow rates. Our IT person has set up the machine to get the same 10.0.0.x address when it starts, and moved this IP to bypass our Proxy/Firewall going out, so that shouldn't be the issue. Can anyone recommend something I can try to better diagnose the problem. Again, I'm new to the Linux world and the hardware/OS setup side in general (coming form more of a coding background). Thanks for any advice.

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• Windows 7 is blocking ports

  - by Caleb1994

  I am trying to open port 80 and 3690 for HTTP and svnserve respectively. I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. According to http://www.yougetsignal.com/tools/open-ports/, both ports 80 and 3690 are still blocked. I can't think of what would be blocking them if Windows Firewall and my antivirus are disabled. Here is the output of netsh firewall show state Firewall status: ------------------------------------------------------------------- Profile = Standard Operational mode = Disable Exception mode = Enable Multicast/broadcast response mode = Enable Notification mode = Enable Group policy version = Windows Firewall Remote admin mode = Disable Ports currently open on all network interfaces: Port Protocol Version Program ------------------------------------------------------------------- 3690 TCP Any (null) 22 TCP Any (null) 80 TCP Any (null) 1900 UDP Any (null) 2869 TCP Any (null) Any help? I'm not sure what each item on the list of enabled/disabled items is, but "Operational Mode" is disabled, so I assume that one refers to me disabling Windows Firewall. I know that since Windows Firewall is off, this output might not be useful, but I figured I'd include it just in case, haha.

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• Windows 7 is blocking ports

  - by Caleb1994

  I am trying to open port 80 and 3690 for HTTP and svnserve respectively. I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. According to http://www.yougetsignal.com/tools/open-ports/, both ports 80 and 3690 are still blocked. I can't think of what would be blocking them if Windows Firewall and my antivirus are disabled. Here is the output of netsh firewall show state Firewall status: ------------------------------------------------------------------- Profile = Standard Operational mode = Disable Exception mode = Enable Multicast/broadcast response mode = Enable Notification mode = Enable Group policy version = Windows Firewall Remote admin mode = Disable Ports currently open on all network interfaces: Port Protocol Version Program ------------------------------------------------------------------- 3690 TCP Any (null) 22 TCP Any (null) 80 TCP Any (null) 1900 UDP Any (null) 2869 TCP Any (null) Any help? I'm not sure what each item on the list of enabled/disabled items is, but "Operational Mode" is disabled, so I assume that one refers to me disabling Windows Firewall. I know that since Windows Firewall is off, this output might not be useful, but I figured I'd include it just in case, haha.

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• Syncing Large Directories/Filesystems using USB Drive [closed]

  - 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

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• mySQL Optimization Suggestions

  - by Brian Schroeter

  I'm trying to optimize our mySQL configuration for our large Magento website. The reason I believe that mySQL needs to be configured further is because New Relic has shown that our SELECT queries are taking a long time (20,000+ ms) in some categories. I ran MySQLTuner 1.3.0 and got the following results... (Disclaimer: I restarted mySQL earlier after tweaking some settings, and so the results here may not be 100% accurate): >> MySQLTuner 1.3.0 - Major Hayden <[email protected]> >> Bug reports, feature requests, and downloads at http://mysqltuner.com/ >> Run with '--help' for additional options and output filtering [OK] Currently running supported MySQL version 5.5.37-35.0 [OK] Operating on 64-bit architecture -------- Storage Engine Statistics ------------------------------------------- [--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM [--] Data in MyISAM tables: 7G (Tables: 332) [--] Data in InnoDB tables: 213G (Tables: 8714) [--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 17) [--] Data in MEMORY tables: 0B (Tables: 353) [!!] Total fragmented tables: 5492 -------- Security Recommendations ------------------------------------------- [!!] User '@host5.server1.autopartsnetwork.com' has no password set. [!!] User '@localhost' has no password set. [!!] User 'root@%' has no password set. -------- Performance Metrics ------------------------------------------------- [--] Up for: 5h 3m 4s (5M q [317.443 qps], 42K conn, TX: 18B, RX: 2B) [--] Reads / Writes: 95% / 5% [--] Total buffers: 35.5G global + 184.5M per thread (1024 max threads) [!!] Maximum possible memory usage: 220.0G (174% of installed RAM) [OK] Slow queries: 0% (6K/5M) [OK] Highest usage of available connections: 5% (61/1024) [OK] Key buffer size / total MyISAM indexes: 512.0M/3.1G [OK] Key buffer hit rate: 100.0% (102M cached / 45K reads) [OK] Query cache efficiency: 66.9% (3M cached / 5M selects) [!!] Query cache prunes per day: 3486361 [OK] Sorts requiring temporary tables: 0% (0 temp sorts / 812K sorts) [!!] Joins performed without indexes: 1328 [OK] Temporary tables created on disk: 11% (126K on disk / 1M total) [OK] Thread cache hit rate: 99% (61 created / 42K connections) [!!] Table cache hit rate: 19% (9K open / 49K opened) [OK] Open file limit used: 2% (712/25K) [OK] Table locks acquired immediately: 100% (5M immediate / 5M locks) [!!] InnoDB buffer pool / data size: 32.0G/213.4G [OK] InnoDB log waits: 0 -------- Recommendations ----------------------------------------------------- General recommendations: Run OPTIMIZE TABLE to defragment tables for better performance MySQL started within last 24 hours - recommendations may be inaccurate Reduce your overall MySQL memory footprint for system stability Enable the slow query log to troubleshoot bad queries Increasing the query_cache size over 128M may reduce performance Adjust your join queries to always utilize indexes Increase table_cache gradually to avoid file descriptor limits Read this before increasing table_cache over 64: http://bit.ly/1mi7c4C Variables to adjust: *** MySQL's maximum memory usage is dangerously high *** *** Add RAM before increasing MySQL buffer variables *** query_cache_size (> 512M) [see warning above] join_buffer_size (> 128.0M, or always use indexes with joins) table_cache (> 12288) innodb_buffer_pool_size (>= 213G) My my.cnf configuration is as follows... [client] port = 3306 [mysqld_safe] nice = 0 [mysqld] tmpdir = /var/lib/mysql/tmp user = mysql port = 3306 skip-external-locking character-set-server = utf8 collation-server = utf8_general_ci event_scheduler = 0 key_buffer = 512M max_allowed_packet = 64M thread_stack = 512K thread_cache_size = 512 sort_buffer_size = 24M read_buffer_size = 8M read_rnd_buffer_size = 24M join_buffer_size = 128M # for some nightly processes client sessions set the join buffer to 8 GB auto-increment-increment = 1 auto-increment-offset = 1 myisam-recover = BACKUP max_connections = 1024 # max connect errors artificially high to support behaviors of NetScaler monitors max_connect_errors = 999999 concurrent_insert = 2 connect_timeout = 5 wait_timeout = 180 net_read_timeout = 120 net_write_timeout = 120 back_log = 128 # this table_open_cache might be too low because of MySQL bugs #16244691 and #65384) table_open_cache = 12288 tmp_table_size = 512M max_heap_table_size = 512M bulk_insert_buffer_size = 512M open-files-limit = 8192 open-files = 1024 query_cache_type = 1 # large query limit supports SOAP and REST API integrations query_cache_limit = 4M # larger than 512 MB query cache size is problematic; this is typically ~60% full query_cache_size = 512M # set to true on read slaves read_only = false slow_query_log_file = /var/log/mysql/slow.log slow_query_log = 0 long_query_time = 0.2 expire_logs_days = 10 max_binlog_size = 1024M binlog_cache_size = 32K sync_binlog = 0 # SSD RAID10 technically has a write capacity of 10000 IOPS innodb_io_capacity = 400 innodb_file_per_table innodb_table_locks = true innodb_lock_wait_timeout = 30 # These servers have 80 CPU threads; match 1:1 innodb_thread_concurrency = 48 innodb_commit_concurrency = 2 innodb_support_xa = true innodb_buffer_pool_size = 32G innodb_file_per_table innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size = 2G skip-federated [mysqldump] quick quote-names single-transaction max_allowed_packet = 64M I have a monster of a server here to power our site because our catalog is very large (300,000 simple SKUs), and I'm just wondering if I'm missing anything that I can configure further. :-) Thanks!

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• iTunes Home Sharing with VPN

  - by Philip Crumpton

  I'm trying to set up a VPN on a Windows machine that contains my iTunes library, then connect my iPhone ot it, wirelessly, using Home Sharing (remotly). I have read that this can easily be set up if the iTunes library is on a Mac (Network Beacon and YazSoft ShareTool are two products I found). I can't find anyone who has had success on a Windows machine, though. In my thinking, there are a few options to getting this done. Find a utility that takes care of this for me (like the Mac-only options listed above) and is compatible with iPhone (Hamachi is NOT compatible with iPhone VPN). Manually configure a VPN to allow Bonjour multicast (I'm not sure what this really is...) Emulate a Mac on my Windows PC. FYI my router is a Linksys WRT54GL running Tomato 1.28 Note question is related to this

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• Strange ports on default install of W7

  - by Sabre

  I have a base new install of windows 7, and when I went to look for something else I saw the attached netstat output. What concerns me is that this is Windows + Truecrypt + drivers, nothing else installed. The sequential high ranged ports belonging to several different seemingly not out of place services seemed odd. So I torched the install, used Active@ to scrub the disk, re-downloaded the ISO from MSDN, and did a fresh reinstall, viola, they are there again. It just seems out of place, I have seen a many netstats over the years, this one just strikes me as odd, so I started thinking rootkit? (JUst FYI, when I reloaded I named the machine "Error" so that is why the task manager reads the computer name as such.) So I would like to know if anyone else could explain it, and therefore is may be normal, or would they be worried as well, and should I start considering I have some very strange thing occuring on my network?

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• HP Virtual Connect and VLAN Tagging

  - by JaapL

  We have a c7000 chasis with the ability to have 8 uplinks per ESX host. Only 6 are currenlty active. I have a Virtual Switch with multiple vlan port groups and all the VMs are working fine. Recently we've been asked to setup network load balancing for one of our VMs, so we had our Virtual Connect engineer activate the last two uplinks. We then created a new vSwitch and added the two new uplinks to this vSwitch. We then moved the VM to this new vSwitch, but we get no connectivity. What could be the issue? We also added the appropriate VLAN ID. The VConnect engineer says everything is configured correctly and networking TEAM says the appropriate trunking is setup, so we are at a loss...

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• How secure is cloud computing?

  - by Rhubarb

  By secure, I don't mean the machines itself and access to it from the network. I mean, and I suppose this could be applied to any kind of hosting service, when you put all your intellectual property onto a hosted provider, what happens to the hard disks as they cycle through them? Say I've invested million into my software, and the information and data that I have is valuable, how can I be sure it isn't read off old disks as they're recycled? Is there some kind of standard to look for that ensures a provider is going to use the strictest form of intellectual property protection? Is SAS70 applicable here?

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• Is it possible to hide the SSID of the Windows 7 soft AP

  - by Goro

  I know it is possible to create a sofware AP in windows 7 using command prompt: netsh wlan set hostednetwork ... But is it possible to set such a network not to broadcast its SSID? I realize that this does not gain any security - or may even make the system more secure, but I am not asking about security here. I want to know if it is possible, through the netsh command interface, to hide the SSID. If my client wants to hide the SSID, then I will make them aware of security implications, but in the end it is their decision.

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• suddenly can't connect to Windows 7 PC from xbmc

  - by Damon

  I have xbmc installed on a softmodded classic xbox and all of a sudden I cannot connect to the shared folders on my Windows 7 PC. Well, it can connect but it wants a username and password, but none exist on my computer. It's been several weeks since I last used it, but it was working fine then! and no particular changes I can think of aside from I guess a few Windows updates. I've seen reference online to Windows Live essentials causing issues with file sharing, but I don't even have that installed. And I made sure to tick 'turn off password protected sharing' in my advanced network setup. I had the guest account turned off and working fine before, and tried turning it on but no luck. I can access my shared folders fine from other Computers and a ps3. I've read a couple threads of similar situations on various folders and none of their solutions have worked.

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• Danger in running a proxy server? [closed]

  - by NessDan

  I currently have a home server that I'm using to learn more and more about servers. There's also the advantage of being able to run things like a Minecraft server (Yeah!). I recently installed and setup a proxy service known as Squid. The main reason was so that no matter where I was, I would be able to access sites without dealing with any network content filter (like at schools). I wanted to make this public but I had second thoughts on it. I thought last night that if people were using my proxy, couldn't they access illegal materials with it? What if someone used my proxy to download copyright material? Or launched an attack on another site via my proxy? What if someone actually looked up child pornography through the proxy? My question is, am I liable for what people use my proxy for? If someone does an illegal act and it leads to my proxy server, could I be held accountable for the actions done?

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• DHCP server inside a virtual machine can't see other machines

  - by William

  Hi, I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. Any advice? I'm assuming I need to be able to connect to my next-server but maybe I'm wrong. Thanks.

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• Unauthorized computer use via keyboard or remote access?

  - by brydaverambo

  I’m suspecting my computer is being used when I’m not at home. This is happening either physically or remotely. My wireless switch is off. Is there any way possible to detect and/or monitor activity without purchasing software? My settings are being changed as well as passwords (Bios PW was changed and I cannot access Bios settings). I connect via the network cable. Is it possible for someone (in range) to connect to my laptop even if the wireless switch is off? This is a Dell Inspiron 1720 with the WLAN 1395 card. Here’s the kicker. When I try to download freeware for monitoring activity, I am not allowed to do this! ????

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• How to configure postfix to dynamically choose different relayhosts?

  - by user24315

  I use my laptop at work on wireless and wired networks, at home on a wireless network, and at various other places (such as conferences, friends houses, etc). When at work I'd like postfix to use the corportate mail server to route emails. When at home I'd like it to use my personal mail server to route emails. When elsewhere I'd like to have the laptop attempt to deliver email in the normal smtp fashion. Is this possible using just postfix? Do I need something else (such as Lamson http://lamsonproject.org/, or scripts that dynamically patch my postfix configuration) when I want to do routing that depends on my current location?

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• IOS not saving evaluate rule in access-list

  - by DeeJay1

  Hi. I have a basic firewall set up on an pretty od IOS in form of IPv6 access list exterior-in6 evaluate exterior-reflect sequence 1 permit ipv6 any host [my external address] sequence 10 permit tcp any host [my internal address] eq 22 sequence 11 permit icmp any any sequence 800 permit udp any any range 6881 6889 sequence 900 permit tcp any any range 6881 6889 sequence 901 deny ipv6 any any sequence 1000 IPv6 access list exterior-out6 permit ipv6 [my internal subnet] any reflect exterior-reflect sequence 10 Unfortunately the evaluate exterior-reflect sequence 1 line seems to get lost after each reboot, leaving my internal network without access. Any ideas?

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• Cannot connect Windows 7 PCs to a Windows 2011 SBS domain

  - by Alexander Miles

  I can connect XP machines just fine to our new domain, however, I get the following error when I try to bind any Windows 7 box on our network to the 2011 SBS domain: An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain. I am wondering if part of the problem might be related to the fact we still have our Win2k DC active (and running DNS) until this server is set up for good? Any help on this would be much appreciated.

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