Search Results

Search found 23782 results on 952 pages for 'claims based authorizatio'.

Page 724/952 | < Previous Page | 720 721 722 723 724 725 726 727 728 729 730 731  | Next Page >

• How can I tell which page is creating a high-CPU-load httpd process?

  - by Greg

  I have a LAMP server (CentOS-based MediaTemple (DV) Extreme with 2GB RAM) running a customized Wordpress+bbPress combination . At about 30k pageviews per day the server is starting to groan. It stumbled earlier today for about 5 minutes when there was an influx of traffic. Even under normal conditions I can see that the virtual server is sometimes at 90%+ CPU load. Using Top I can often see 5-7 httpd processes that are each using 15-30% (and sometimes even 50%) CPU. Before we do a big optimization pass (our use of MySQL is probably the culprit) I would love to find the pages that are the main offenders and deal with them first. Is there a way that I can find out which specific requests were responsible for the most CPU-hungry httpd processes? I have found a lot of info on optimization in general, but nothing on this specific question. Secondly, I know there are a million variables, but if you have any insight on whether we should be at the boundaries of performance with a single dedicated virtual server with a site of this size, then I would love to hear your opinion. Should we be thinking about moving to a more powerful server, or should we be focused on optimization on the current server?

  Read the article

• What service do you use for music on hold?

  - by Russ Warren

  This may not be a sysadmin question for some, but it is definitely a hurdle I have to jump as the sysadmin for my company. We recently rolled-out a company wide VoiP system (Switchvox, to be exact) that has come preloaded with some royalty-free music on hold. Our customers have been complaining that the music on hold sounds like "funeral music." This may be the case (although I wouldn't want it played at my funeral), but it is all we have and we aren't willing to be sued over using music that isn't properly licensed. So, that brings me to the question asked in the title -- what and/or how do you provide decent music on hold? I'm assuming many people here use a PBX that allows customized music, so this has to apply to many of you. We've been looking at some sites that allow you to download royalty-free music for a one-time fee, but the music seems...lame. Something like a one-year subscription from ibaudio.com seems to be the best bet so far. Have you been able to discover something a little more mainstream for a decent licensing fee? Thank you. EDIT: Our PBX allows the playback of MP3 and OGG files, but does not allow streaming of a live audio source, Internet-based or otherwise. It also does not allow the use of a "line-in" source such as a CD player or radio. Don't let this stop you from sharing your setup, though. I'm interested in hearing what everyone uses!

  Read the article

• IIS 7 URL Rewrite to GeoServer running on Apache

  - by Maxim Zaslavsky

  I'm building a mapping application based on OpenLayers that uses GeoServer to serve up mapping data. The problem I'm having is that besides the map images I'm requesting through WMS, I'm using jQuery AJAX to get information from GeoServer. As GeoServer is running on a different port, my requests are being blocked due to cross-site scripting security policies in JavaScript. As a Java application, GeoServer runs on Apache on port 8080, while my IIS instance is running on port 80. Instead of building a proxy, I've decided to use URL Rewriting in IIS7 to fix this problem. I'm following this guide, but it's still not working. Here are my URL Rewrite rule settings: Matches URL: (.*) Condition: {HTTP_URL} matching /geoserver Action: rewrite to http://localhost:8080/{R:1}, appending query string When I request http://localhost/geoserver/wms?QUERY_LAYERS=SanDiego:FWSA_sandiego&LAYERS=SanDiego:FWSA_sandiego&SERVICE=WMS&VERSION=1.1.1&FEATURE_COUNT=20&REQUEST=GetFeatureInfo&EXCEPTIONS=application/vnd.ogc.se_xml&BBOX=-13009123.590156,3862057.2905992,-13006066.109025,3865114.7717302&INFO_FORMAT=text/html&x=20&y=20&width=40&height=40&srs=EPSG:900913, however, all I get is a 404, although the same request on port 8080 returns the proper result. What am I doing wrong? Thanks in advance.

  Read the article

• Mod_rewrite (CakePHP routing functionality) forbidden after Snow Leopard upgrade

  - by Ryan Ballantyne

  Hello ServerFault, I am using the standard Apple-provided installations of PHP 5.3 and Apache 2 to do web development on a Mac Pro that I just upgraded to Mac OS X 10.6 (Snow Leopard). The upgrade went well enough, if I ignore the fact that it destroyed my ability to get work done. ;) After the update, the CakePHP application I was developing started giving me 403 Forbidden errors when accessed. Based on the errors in the log file, I've determined that Apache is choking on the mod_rewrite rules in Cake's .htaccess file. Here's the file, in its entirety: <IfModule mod_rewrite.c> RewriteEngine on RewriteRule ^$ app/webroot/ [L] RewriteRule (.*) app/webroot/$1 [L] </IfModule> It's not that the rules themselves are wrong, but that Apache is forbidding the use of mod_rewrite altogether. All other pages on the machine work fine, and the 403 errors go away if I comment out the .htaccess file (but nothing works, of course). In my httpd.conf file, I've tried changing this: <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> To this: <Directory /> Options FollowSymLinks AllowOverride All Order deny,allow Allow from all </Directory> ...which has no effect. I don't know much about Apache configuration files, and I'm quite stuck on this. In fact, I know little enough that I'm not sure which information about my setup is needed to enable people to provide useful answers. I'm just using the vanilla OS X setup, nothing fancy. Googling has yielded no fruits for me this time, so I'm turning to you. Any ideas?

  Read the article

• Setting up SSL for phpMyAdmin

  - by Ubuntu User

  I would like to run phpmyadmin using my SSL certificate. I read that if I placed the following within the file: /etc/phpmyadmin/config.inc.php, it would force it to use SSL. And now it does... $cfg['ForceSSL'] =true; However, my issue is when I did this, now I get an error stating "cannot connect to server." I do a port scan and my port 443 is closed for one, but I am connecting via https:// for my secure web based email admin panel. This tells me this may not be the issue. Second, is that I have a SSL certificate I purchased but I am not sure how to apply this cert. mydomain.com.crt is sitting on my desktop, how should I be utilizing this? I remember creating a self signed cert for my web-email access. Do I have to do this for phpmyadmin as well? At least this way, since I am the only one who will ever access the DB, it will never expire. Also the phpmyadmin used to come up as: http://mydomain/phpmyadmin/ of course I am now trying to get to https://mydomain.com/phpmyadmin/ however, I do not have any pages on my website that requires https:// currently. In the future I may add this. But for now, I only want to access phpmyadmin via ssl. I can use my own -- but if this causes problems with future ecommerce apps under mydomain.com I would rather use the SSL cert I already purchased. Thank you!

  Read the article

• How to remove all Couchdb versions in Ubuntu 10.04 (server)? ( after multiple installs )

  - by DjangoRocks

  Hi all, I have done multiple installs of CouchDB using sudo aptitude install couchdb sudo ap-get install couchdb and more recently based on the instructions found at L http://wiki.apache.org/couchdb/Installing_on_Ubuntu May I know how do I uninstall or remove all the above installations? Best Regards. +++++++++++++++++++UPDATE++++++++++++++++++++++++ I've tried running the following commands: apt-get remove couchdb apt-get purge couchdb but received the following errors: (Reading database ... 39814 files and directories currently installed.) Removing couchdb ... invoke-rc.d: initscript couchdb, action "stop" failed. dpkg: error processing couchdb (--remove): subprocess installed pre-removal script returned error exit status 1 invoke-rc.d: initscript couchdb, action "start" failed. dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: couchdb E: Sub-process /usr/bin/dpkg returned an error code (1) May I know how do i fix this? ON issuing the command : dpkg -l | grep couchdb I received the following response: rF couchdb 0.10.0-1ubuntu2 RESTful document oriented database, system D iF couchdb-bin 0.10.0-1ubuntu2 RESTful document oriented database, programs How do i uninstall CouchDB ? I think there's some file corruption?

  Read the article

• How to let hard drive sleep in RAID1 configuration?

  - by Al Kepp

  Normally in Windows 7 a hard drive stops spinning when it is not used for a longer while. This can be configured in Windows and I use it on computers which are turned on 24/7 but not used much often. My problem is on a computer with Intel X79 chipset with an integrated RAID controller. There is Windows 7 installed on an SSD drive, and there is RAID1 array with two SATA HDD drives for data. Those SATA drives aren't used much so I'd like to let them sleep (i.e stop spinning). But they ignore settings in Windows. How to let them sleep when using RAID1? It seems to me that those drives are "unstoppable", they are spinning 24/7 even when they aren't used at all. Maybe they would behave normally if I used Windows-based software RAID, but I use hardware RAID controller. Is there a way to let them stop spinning and sleep after for example 3 or 5 hours of inactivity (i.e. the same way as they would behave in Windows without RAID)?

  Read the article

• Overriding routes on Openvpn client, iproute, iptables2

  - by sarvavijJana

  I am looking for some way to route packets based on its destination ports switching regular internet connection and established openvpn tunnel. This is my configuration OpenVPN server ( I have no control over it ) OpenVPN client running ubuntu wlan0 192.168.1.111 - internet connected if Several routes applied on connection to openvpn from server: /sbin/route add -net 207.126.92.3 netmask 255.255.255.255 gw 192.168.1.1 /sbin/route add -net 0.0.0.0 netmask 128.0.0.0 gw 5.5.0.1 /sbin/route add -net 128.0.0.0 netmask 128.0.0.0 gw 5.5.0.1 And I need to route packets regarding it's destination ports for ex: 80,443 into vpn everything else directly to isp connection 192.168.1.1 What i have used during my attempts: iptables -A OUTPUT -t mangle -p tcp -m multiport ! --dports 80,443 -j MARK --set-xmark 0x1/0xffffffff ip rule add fwmark 0x1 table 100 ip route add default via 192.168.1.1 table 100 I was trying to apply this settings using up/down options of openvpn client configuration All my attempts reduced to successful packet delivery and response only via vpn tunnel. Packets routed bypassing vpn i have used some SNAT to gain proper src address iptables -A POSTROUTING -t nat -o $IF -p tcp -m multiport --dports 80,443 -j SNAT --to $IF_IP failed in SYN-ACK like 0 0,1 0,1: "70","192.168.1.111","X.X.X.X","TCP","34314 > 81 [SYN] Seq=0 Win=5840 Len=0 MSS=1460 TSV=18664016 TSER=0 WS=7" "71","X.X.X.X","192.168.1.111","TCP","81 > 34314 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1428 TSV=531584430 TSER=18654692 WS=5" "72","X.X.X.X","192.168.1.111","TCP","81 > 34314 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1428 TSV=531584779 TSER=18654692 WS=5" "73","192.168.1.111","X.X.X.X","TCP","34343 > 81 [SYN] Seq=0 Win=5840 Len=0 MSS=1460 TSV=18673732 TSER=0 WS=7" I hope someone has already overcome such a situation or probably knows better approach to fulfill requirements. Please kindly give me a good advice or working solution.

  Read the article

• Split horizon, route filtering, and having RIPv2 announce a non-attached route to host...

  - by Paul

  Routers A, B & C live at 10.1.1.1, 10.1.1.2 and 10.1.1.3 on a /24 metro Ethernet subnet. Each router also has its own private subnet on another interface. Router B's private subnet links thru a firewall to a 10.20.20.0 network at another organization. Router B redistributes to A and C several static routes for hosts on 10.20.20.0. However, a new host 10.20.20.5/32 must be reached via a different path that goes through router C. I know that C can advertise this host-based route with no problem, but I'd like to keep all my 10.20.20.x static routes in one place. So, how can B tell A via RIPv2 to send packets for 10.20.20.5/32 to C? So far it looks like I need no ip split-horizon on router B's 10.1.1.2 interface, perhaps because B has already learned from C other routes with a next hop of 10.1.1.3. But how does RIPv2 split horizon with no auto-summary and network 10.0.0.0 really work? If B learns a route to ANY 10.x.x.x network or host from A or C, is that enough for split horizon to keep it from redistributing ip route 10.20.20.5 255.255.255.255 10.1.1.3? And if I want to suspend split horizon only for this one new host, how do I filter out the mess of regurgitated routes that B advertises when I try no ip split-horizon? Thanks much.

  Read the article

• IIS High use & Server Performance issues

  - by HaydnWVN

  Have an SBS2011 running Exchange, a database app and a few other things serving 5 users (3 low use, 1 high). The server was never specced for the database app so it isn't as powerful as I'd like... Only 12GB RAM. We have increasingly found performance problems with this server, last week it was so bad I couldn't even connect remotely. To free up some available RAM I have (over the past month or so): Restricted the Exchange Message Store to 1GB with (so far) no ill effects. Restricted SQL Databases (including SBSMonitoring and Sharepoint/##SSEE (Which isn't used)). Now I am finding that IIS Worker threads are using up the available memory and I have (so far) been unable to track down much useful information about restricting them. This server is not 'serving' anything web-based apart from OWA that I am finding people using because Outlook is so slow (again related to the Servers performance). I am aware that Exchange on SBS2011 is designed to use up available resources (and concede when other applications request). But it is not doing so (or anywhere near fast enough) for our needs. Opening the database application (using Postgres) takes 5+ minutes from client machines and regularly times out or crashes due to this. After a reboot (before SQL/Exchange/IIS databases are very large/totally cached) we get the performace we need and expect. Previously a reboot once a month was enough... Then once a week... Now they have taken to rebooting it almost daily!

  Read the article

• Disabled FRS replication on a DFS link, but the targets still list the replica set in their FRS conf

  - by Graeme Donaldson

  It's been a while since I've had to deal with the wonders of FRS, so I'm doing some testing to refresh my memory. This is what I've done so far. I am stuck with FRS rather than DFS-R for the moment since not all of my link targets are running R2. Created a domain-based DFS root, hosted on 4 servers. Created a DFS link under the root, targeted at 2 servers. The shares on both servers were empty. Dropped about 500MB of data into the target folder on one server and waited for replication to complete. Added/removed/modified files on both targets and confirmed that changes are replicated within a few seconds. Deleted the contents of the target folder on 1 server and waited for the other server to replicate the deletion. All of this worked perfectly, so now I want to remove my DFS link since I only created it for testing purposes. This is where it gets weird. I'm pretty sure that in the past I've disabled replication on the DFS link and after a short amount of time each target would log an info event in the FRS event log, something along the lines of "this server is no longer a member of replica set X". I have waited about 3 hours and I haven't seen this happen. ntfrsutl ds tells me that the server is not a member of any set, which is expected because when I disable replication on the link, the AD attributes on the computer object are removed. The weird part is... ntfrsutl sets still shows me the replica set, with all the properties, etc. So it seems like the FRS-related attributes of the target server's AD object are gone, but the FRS service for some reason hasn't removed the replica set. Can anyone see what I have done wrong?

  Read the article

• Karmic iptables missing kernel moduyles on OpenVZ container

  - by luison

  After an unsuccessful p2v migration of my Ubuntu server to an OpenVZ container which I am stack with I thought I would give a try to a reinstall based on a clean OpenVZ template for Ubuntu 9.10 (from the OpenVZ wiki) When I try to load my iptables rules on the VM machine I've been getting errors which I believe are related to kernel modules not being loaded on the VM from the /vz/XXX.conf template model. I've been testing with a few post I've found but I was stack with the error: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/. FATAL: Could not load /lib/modules/2.6.24-10-pve/modules.dep: No such file or directory iptables-restore v1.4.4: iptables-restore: unable to initialize table 'raw' Error occurred at line: 2 Try `iptables-restore -h' or 'iptables-restore --help' for more information. I read about the template not loading all iptables modules so I added modules to the XXX.conf of the VZ virtual machine like this: IPTABLES="ip_tables iptable_filter iptable_mangle ipt_limit ipt_multiport ipt_tos ipt_TOS ipt_REJECT ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_LOG ipt_length ip_conntrack ip_conntrack_ftp ip_conntrack_irc ipt_conntrack ipt_state ipt_helper iptable_nat ip_nat_ftp ip_nat_irc" As the error remained I read that I should build dependencies again on the virtual machine: depmod -a but this returned an error: WARNING: Couldn't open directory /lib/modules/2.6.24-10-pve: No such file or directory FATAL: Could not open /lib/modules/2.6.24-10-pve/modules.dep.temp for writing: No such file or directory So I read again about creating the directory empty and redoing "depmod -a" it. I now don't get the dependancies error but get this and I don't have a clue how to proceed: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/. FATAL: Module ip_tables not found. iptables-restore v1.4.4: iptables-restore: unable to initialize table 'raw' Error occurred at line: 2 Try `iptables-restore -h' or 'iptables-restore --help' for more information. I understand that iptables rules have to be different on the VM machine and perhaps some of the rules we are trying to apply (from our physical server) are not compatible but these are just source IP and destination port checks that I would like to be able to have available . I've heard that on the CentOS template there are no issues with this, so I understand is to do with VM config. Any help would be greatly appreciated.

  Read the article

• If spambots are filling out forms on my website, should I mark the mail as spam?

  - by rob

  Apparently spambots have discovered the contact forms my website. I'm considering adding a CAPTCHA, but in the meantime I've been getting dozens of completed website forms in my Gmail account each day. I know I can configure a filter to always allow e-mails from my website to be delivered (i.e., "never send to spam"), but I'm wondering whether there are also larger implications. At first, I was marking the spam forms as spam because I figured it would block the sender's e-mail address from getting through again. But since then, I've given it some more thought. I know many spam filters use Bayesian filters and other techniques to identify spam based on its content. If I mark all these e-mails as spam, will legitimate e-mails from my website be marked as spam? Even if I stop marking the messages as spam, I can see another potential problem. My form is pretty standard (in fact, it's probably very similar to other online forms). If I mark my spambot-submitted website forms as spam, will Gmail begin to mark other people's similar-looking messages as spam?

  Read the article

• Can't include Javascript variable in PHP mysql_query call? [on hold]

  - by user198895

  I want the PHP mysql_query call to retrieve user values based on the Agency drop-down value but I can't get this to work. Am I unable to include the Javascript variable agency.value in PHP? <script type="text/javascript"> var agency = document.getElementById("agency"); var user = document.getElementById("user"); agency.onchange = onchange; // change options when agency is changed function onchange() { <?php include 'dbConnect.php'; ?> <?php $q = mysql_query("select id as UserID, CONCAT(LastName, ', ' , FirstName) as UserName from users where Agency = " . ?>agency.value<?php . " order by UserName");?> option_html = "<option value=0 selected>- All Users -</option>"; <?php while ($row1 = mysql_fetch_array($q)) {?> if (agency.value == 0 || agency.value == '<?php echo $row1[AgencyID]; ?>') { option_html += "<option value=<?php echo $row1[UserID]; ?>><?php echo $row1[UserName]; ?></option>"; } <?php } ?> user.innerHTML = option_html; } </script>

  Read the article

• SSD, AHCI and write performance

  - by Dan

  We've started to deploy SSD drives to our developers workstations. At this moment we're having the unpleasant surprise that the systems using the new SSDs often freeze, with the HDD activity led blinking or being continuously on. Benchmarks shows read speeds around 180 MB/s, but write speeds around 5 MB/s. All developers are using Windows 7 Enterprise, 64 bit, SP1. One of our developers suggested (based on his experience) the following sequence: backup the workstation use a tool to completely erase the SSD make sure AHCI is enabled in BIOS install Windows restore from backup So far, this procedure seems to work (we're still testing, but write speed seems to be 120 MB/s). There are some questions in this context: why do we have to completely reinstall Windows? Is it possible to clean the SSD without reinstalling Windows? Is there a reliable tool? If AHCI was disabled when Windows was installed and we enable it, shouldn't this be enough to correct the write performance issue? If we have to completely erase the SSDs, does this mean the SSDs we've received were used before (SH)? I'm wondering this because the package I've got was open (I didn't think about it at that time, as I considered one of my coworkers simply took a peek inside the package). Has anyone seen a similar problem before?

  Read the article

• What breaks in a Windows domain if a member has a high time skew?

  - by Ryan Ries

  It's taken for granted by most IT people that in a Windows domain, if a member server's clock is off by more than 5 minutes (or however many minutes you've configured it for) from that of its domain controller - logons and authentications will fail. But that is not necessarily true. At least not for all authentication processes on all versions of Windows. For instance, I can set my time on my Windows 7 client to be skewed all to heck - logoff/logon still works fine. What happens is that my client sends an AS_REQ (with his time stamp) to the domain controller, and the DC responds with KRB_AP_ERR_SKEW. But the magic is that when the DC responds with the aforementioned Kerberos error, the DC also includes his time stamp, which the client in turn uses to adjust his own time and resubmits the AS_REQ, which is then approved. This behavior is not considered a security threat because encryption and secrets are still being used in the communication. This is also not just a Microsoft thing. RFC 4430 describes this behavior. So my question is does anyone know when this changed? And why is it that other things fail? For instance, Office Communicator kicks me off if my clock starts drifting too far out. I really wish to have more detail on this. edit: Here's the bit from RFC 4430 that I'm talking about: If the server clock and the client clock are off by more than the policy-determined clock skew limit (usually 5 minutes), the server MUST return a KRB_AP_ERR_SKEW. The optional client's time in the KRB-ERROR SHOULD be filled out. If the server protects the error by adding the Cksum field and returning the correct client's time, the client SHOULD compute the difference (in seconds) between the two clocks based upon the client and server time contained in the KRB-ERROR message. The client SHOULD store this clock difference and use it to adjust its clock in subsequent messages. If the error is not protected, the client MUST NOT use the difference to adjust subsequent messages, because doing so would allow an attacker to construct authenticators that can be used to mount replay attacks.

  Read the article

• New AD-DC in a new Site is refusing cross-site IPv4 connections

  - by sysadmin1138

  We just added a new Server 2008 (sp2) Domain Controller in a new Site, our first such config. It's over a VPN gateway WAN (10Mbit). Unfortunately it is displaying a strange network symptom. Connections to the SMB ports (TCP/139 and TCP/445) are being actively refused... if the connection is coming in on pure IPv4. If the incoming connection is coming by way of the 6to4 tunnel those connections establish and work just fine. It isn't the Firewall, since this behavior can be replicated with the firewall turned off. Also, it's actually issuing RST packets to connection attempts; something that only happens with a Windows Firewall if there is a service behind a port and the service itself denies access. I doubt it's some firewall device on the wire, since the server this one replaced was running Samba and access to it from our main network functioned just fine. I'm thinking it might have something to do with the Subnet lists in AD Sites & Services, but I'm not sure. We haven't put any IPv6 addresses in there, just v4, and it's the v4 connections that are being denied. Unfortunately, I can't figure this out. We need to be able to talk to this DC from the main campus. Is there some kind of site-based SMB-level filtering going on? I can talk to the DC's on campus just fine, but that's over that v6 tunnel. I don't have access to a regular machine on that remote subnet, which limits my ability to test.

  Read the article

• Apache process consuming all memory on the server

  - by jemmille

  I have an apache process that suddenly appears on a particular server. When it shows up it starts consuming memory at a very rapid rate, then moves on to all the swap. In all it consumes about 11GB (including swap) of memory and the server eventually becomes unresponsive. The load on the server is under 1 at all other times. The process runs as nobody and I am having a hard time tracking down the source. If i run an strace on the process and all it did was continuously dump out mprotect over and over again If i run lsof -p <pid>, I get this, but only sometimes: httpd 19229 nobody 152u IPv4 175050 crawl-66-249-67-216.googlebot.com:62336 (CLOSE_WAIT) httpd 19229 nobody 153u IPv4 179104 crawl-66-249-71-167.googlebot.com:58012 (ESTABLISHED) As long as I catch it, I can kill the process and the server almost immediately stabilizes. I have on site on the server that is getting a few thousand hits a a day that I think might be the source, but I still can't find the exact reason. Also, this is a cPanel server and I have upcp'd the server, rebuilt apache with easy apache, and rebuilt httpd.conf. It is not spawing any related processes, meaning I can find any php, mysql, cgi, etc. processes that relate to this process. It's just a loner process that balloons fast and consumes ever last MB of memory. This is on a XenServer 5.6 based VM. No other servers in the cluster are having this issue.

  Read the article

• Improving abysmal 802.11n wireless network

  - by concept

  I am in desperate need of help to improve the abysmal performance of my 802.11n wireless network. At best I get 30Mbs (this is an internet download) from a technology that boasts 300Mbs, even worse is the LAN where to date best i have ever gotten is 1Mbs. It is literally quicker to copy the file to a USB and walk it to the other computer. Infrastructure is this AP 802.11n only broadcasting at both 2.4GHz and 5GHz Mac with 802.11a/b/g/n card is connected to the AP via 5GHz Linux with 802.11a/b/g/n card is connected to AP via 2.4GHz I have conducted the following tests (results at end of post) Internet based speed test wired and wireless LAN file copy wired and wireless I have read: http://nutsaboutnets.com/troubleshooting-wi-fi-problems/ http://www.smallnetbuilder.com/wireless/wireless-basics/30664-5-ways-to-fix-slow-80211n-- speed http colon //www.wi-fiplanet dot com/tutorials/7-tips-to-increase-wi-fi-performance.html Slow file transfer on network between two 802.11n laptops (connected directly together via access point) Wireless Network Performance Issues Slower than expected 802.11n wireless network speeds I have made the following optimizations AP broadcasts only 802.11n on both 2.4GHz and 5GHz frequencies 2.4GHz is on a channel with least interference (live in an apartment with lots of APs), this did make a 10Mb/sec improvement Our AP is the only one transmitting on the 5GHz freq. Security: WPA Personal WPA2 AES encryption Bandwidth: 20MHz / 40MHz (i assume this to be channel bonding) I have tried the following with 0 improvement Dropped the Fragment Threshold to 512 Dropped the Request To Send (RTS) Threshold to 512 and 1 Even thought of buying a frequency spectrum analyzer, until i saw the cost of them!!! Speed test results Linux Wired: DOWNLOAD 128.40Mb/s UPLOAD 10.62Mb/s www dot speedtest dot net/my-result/2948381853 Mac Wired: DOWNLOAD 118.02Mb/s UPLOAD 10.56Mb/s www dot speedtest dot net/my-result/2948384406 Linux Wireless: DOWNLOAD 23.99Mb/s UPLOAD 10.31Mb/s www.speedtest dot net/my-result/2948394990 Mac Wireless: DOWNLOAD 22.55Mb/s UPLOAD 10.36Mb/s www.speedtest dot net/my-result/2948396489 LAN NFS 53,345,087 bytes (51Mb) file Linux Mac NFS Wired: 65.6959 Mb/sec Linux Mac NFS Wireless: .9443 Mb/sec All help is appreciated, even testing methods will be accepted.

  Read the article

• Least CPU intensive way of streaming your screen on windows?

  - by sinni800

  Hello, sometimes I like capturing my screen for others to see. Only thing: I am playing games while I do it. I have tried a few streaming solutions where Windows Media Encoder coupled with my own Windows server appealed to me most, because I can change resolutions, etc. I also tried ustream coupled with the Flash applet and the Adobe Flash Encoder recording a Camtasia source. Camtasia has the disadvantage though that it shows the green-and-black-alternating borders and can not be targeted fullscreen. I like how xfire does it. But it doesn't work with every game, many are simply not supported. A few thoughts about this: Is there a program which captures like Fraps or XFire (based on Direct3D and OpenGL outputs) and exposes the output to a DirectShow source filter? Which brings me to: Is there hardware accelerated capturing directly from the graphics card? Maybe including direct encoding with help from OpenCL? Modern graphic cards decode BluRay content directly for example. I should have a modern enough graphics processor for this to be possible (see below). If using Windows Media Encoder: Which are the least CPU intensive settings? Which codec? Is there a newer codec than Windows Media 9? Is it less CPU intensive? I only have 7, 8 and 9 inside the Encoder Could the performance be massively increased by having a Quad-Core CPU (see below)? Bandwidth is no problem up to 1000 to 1500 kbit/s (I have 2048). My Computer specs: Intel Core 2 Duo E8400 4 GB DDR2-800 Ram Ati Radeon HD5770 Using Windows 7 Professional

  Read the article

• QNAP NAS 509 (LINUX) - how to unmout busy volume and find physical disk?

  - by Horst Walter

  On my NAS QNAP TS 509 I do have a technical issue. I need to run e2fsck. This works fine for me on md0 (see below), but how can I unmount the busy devices md9 and sda4 in order to do the same. Whenever I try, I fail because the device is busy. [This part is solved, see below] In order to further track down the issue, I'd need to sort out the physical disk to device relationship. How can I find out this, e.g. md0 is a stripped volume on 2 disk (but I need to find out on what physical disk). Remark: As you can easily derive from my questions, I am not a Linux expert, but manage to get along. /dev/ram0 124.0M 94.1M 29.8M 76% / tmpfs 32.0M 80.0k 31.9M 0% /tmp /dev/sda4 310.0M 103.9M 206.1M 34% /mnt/ext /dev/md9 509.5M 39.2M 470.2M 8% /mnt/HDA_ROOT /dev/md0 1.8T 1.4T 444.7G 76% /share/MD0_DATA tmpfs 32.0M 0 32.0M 0% /.eaccelerator.tmp -- Added -- QNAP seems to be based on Busybox. I do not find something like init / telinit / runlevel. At busybox docs it says that I need to run the below. But in /var/service sv is not available. I want to go to single user mode to unmount the devices. # cd /var/service # sv d * # sv u getty* -- Added, thanks A4L -- This QNAP Box runs a special flavor of Linux, so not all SOPs do apply. In my particular case I found a services.sh script, stopping all services. After that the drive could be unmounted. The information passed by A4L is valid and worth reading it, maybe I'll profit from it next time. Links: http://unix.stackexchange.com/questions/19918/umount-device-is-busy and http://unix.stackexchange.com/questions/15024/umount-device-is-busy-why So the unmount issue is solved, still looking for the best option to find the physical to volume mapping.

  Read the article

• Does fast typing influence fast programming?

  - by Lukasz Lew

  Many young programmers think that their bottleneck is typing speed. After some experience one realizes that it is not the case, you have to think much more than type. At some point my room-mate forced me to turn of the light (he sleeps during the night). I had to learn to touch type and I experienced an actual improvement in programming skill. The most surprising was that the improvement not due to sheer typing speed, but to a change in mindset. I'm less afraid now to try new things and refactor them later if they work well. It's like having a new tool in the bag. Have anyone of you had similar experience? Now I trained a touch typing a little with KTouch. I find auto-generate lessons the best. I can use this program to create new lessons out of text files but it's only verbatim training, not auto-generated based on a language model. Do you know any touch typing program that allows creation of custom, but randomized lessons?

  Read the article

• Intermittent CNAME forwarding

  - by Godric Seer

  I host a personal website on an old desktop that is LAMP based. Since I have a dynamic IP, I use no-ip to make sure I have a working domain name at all times. I also have a domain I have bought on GoDaddy where I have a CNAME record forwarding the www subdomain to my no-ip domain. At all times, I can connect to my website through the no-ip domain without issue. For the past several weeks, I never had an issue using the GoDaddy domain to connect (ssh or https). As of today, however, the GoDaddy domain only works for about 10 minutes at a time. I get server not found errors most of the time. Also, if I happen to be using the GoDaddy domain for an ssh connection, the connection will freeze. I have attempted to run tests using a couple of online DNS check websites, but have not gotten any errors at any time. I also contacted GoDaddy support but they had no issues connecting to the website, and therefore did not see any issues. I would like advice on how I could debug/resolve this issue. Since the problem appeared without me changing anything on my end, I hope it will resolve itself, but knowing the cause in case it happens again would be preferable. EDIT: I changed the configuration in GoDaddy to create an A (Host) that points at my current IP. This works fine, so I can access the site through the GoDaddy domain without the preceding www. I am currently waiting for a new CNAME record to propagate that points the www subdomain at the main host, rather than my no-ip domain.

  Read the article

• Configuration for Router Behind Uverse 2Wire

  - by Nori

  I have a 2Wire Uverse router(RG). I'm not particularly fond of it and want to use it as a modem only. I have a Linksys router with Tomato firmware on it and want that to be configured as the router. Most of the "guides" I've seen in my searches has been to enable DMZ Plus mode, but I don't see a way to make that work while my router has a static IP address. I played with it for quite some time yesterday and didn't see a way to get it to work. Then I ran across a setting in broadband for configuring another network. I played with that for a little bit but ran out of time and couldn't get it to work. So my question is for anyone out there who has Uverse and successfully setup a Tomato based firmware router behind the RG. How did you get it configured? I'm sure if I continued playing with it I could get it to work, but if someone out there already has it working then that would make my life easier. Thoughts? Thanks.

  Read the article

• How to eliminate the downtime when a dynamic IP address changes?

  - by xenon

  We currently have a number of client computers linked up to a database server (MS SQL 2008) for replication. The database server recognises the computers based on their Windows hostname. We are using dynamic IP addresses at this time because we tend to change the computers’ hardware quite frequently, and so the MAC address may be different. Unless static IP has a good way for us to manage frequent changing of MAC addresses, we are keeping it to dynamic IP. The problem with dynamic IP addresses, however, is that when a client fetches an new IP from the DHCP, ie, there is a change in the IP address, there is going to have a downtime for the hostname to reflect the new IP address, the client’s DNS cache of the hostname to reload, and also the server’s DNS cache to reload to see the new IP from the hostname. All of these have different timings and the delay can be really bad at times. Restarting the computer doesn't work all the time too. The clients are on Windows 7. How can I eliminate the amount of downtime required when there is a change in IP in the case of dynamic IP addresses?

  Read the article

< Previous Page | 720 721 722 723 724 725 726 727 728 729 730 731  | Next Page >