Search Results

Search found 8990 results on 360 pages for 'response transmitfile'.

Page 195/360 | < Previous Page | 191 192 193 194 195 196 197 198 199 200 201 202 | Next Page >

Can I use nginx to start EC2 instances on demand?

- by Gabe Hollombe

TL;DR - Is there a way to make nginx act as an elastic load balancer that will spin up EC2 instances on demand, allowing for the case when periods of no demand mean no instances will be running? Longer explanation - I have an nginx server that proxy_pass'es requests to a server on EC2. This server doesn't get many requests, so I'd like to keep the server spun down during periods of inactivity (I already have a script to do this). Then, when the instance is spun down and nginx gets a request for that instance, it will time out when trying to get a response from it. At this point, can I somehow trigger a shell command on the server to use EC2's command line tools to spin up the instance, then re-try the user's request after it has started?

Read the article
Pure-FTPd: Which IP Address To Use For Login?

- by mschooler93

I am trying to connect to my VirtualBox LAMP Server with FileZilla, and it's not working. I have a static IP set, a FTP user set (with FTPd), and can connect successfully with ftp localhost, but not with Filezilla with the same credentials. I suspect this is because I am using the wrong IP address in the Host box. so is there a command I can use to display the IP address used to connect to my FTP? BTW, error code given in FileZilla is: Status: Connection established, waiting for welcome message... Response: 425 Sorry, invalid address given Error: Could not connect to server

Read the article
OpenVZ multiple networks on CTs

- by picca

I have Hardware Node (HN) which has 2 physical interfaces (eth0, eth1). I'm playing with OpenVZ and want to let my containers (CTs) have access to both of those interfaces. I'm using basic configuration - venet. CTs are fine to access eth0 (public interface). But I can't get CTs to get access to eth1 (private network). I tried: # on HN vzctl set 101 --ipadd 192.168.1.101 --save vzctl enter 101 ping 192.168.1.2 # no response here ifconfig # on CT returns lo (127.0.0.1), venet0 (127.0.0.1), venet0:0 (95.168.xxx.xxx), venet0:1 (192.168.1.101) I believe that the main problem is that all packets flows through eth0 on HN (figured out using tcpdump). So the problem might be in routes on HN. Or is my logic here all wrong? I just need access to both interfaces (networks) on HN from CTs. Nothing complicated.

Read the article
Submit form to another domain

- by doubter

I need to access the result of submitting a form to a website. There is a web site where you complete a form and it posts the information using ajax and then tells you if you have their service in the are or not. I'd like to be able to do this from my web page, which means posting the information required by the form to their server and getting the result. The problem is I get "403 Forbidden", I think it's because the "Origin" being a different domain. Is there anyway that I can the response from the server on my website? I thought about php_curl (used once with google docs api) but would like to know what you guys think it's the best way.

Read the article
How to monitor the temperature of a HP Procurve 3500 switch via SNMP

- by Murali Suriar

I am attempting to poll the temperature of an HP ProCurve 3500YL switch remotely using SNMP. Looking at this MIB, it appears that the following OIDs: hpCpuTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.6 hpPowerSupplyTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.7 hpChassisTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.8 Within the 'hpProcurveSysMib' should provide the data I need. However, whenever I attempt to access these OIDs, I receive the response: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1.1.6 = No Such Object available on this agent at this OID Further investigation reveals that the switch in question does not appear to implement the parent hpProcurveSystem MIB: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1 = No Such Object available on this agent at this OID Does anyone know of an alternative MIB implemented by the 3500 that will allow its temperature to be polled automatically?

Read the article
Creating cookieless application on development machine with asp.net

- by zaladane

I am thinking about setting up a new domain to host static content on my website and have it cookieless just like Stackoverflow with their static domain. So before going ahead and buying the domain and setting it up I wanted to test it on my developement machine first under localhost (I have to mention that i am planning on having IIS running on my new domain for the static files). I therefore created a new application under IIS and disabled session state and forms authentication. When my main application needs resources like css, images and js , I use the path to the "static" application where they are hosted. The problem is that when I look at the request and the response for the requested files, they still have the session_id cookie defined as well as the asp.net authentication cookie. Is it at all possible to accomplish what i am trying to do on a development machine or do i have to just go ahead and purchase the new domain which hopefully with make things right? I tried to read about cookieless domain but can't figure out what i might be missing.

Read the article
How much should a Systems Administrator be making?

- by Curtis

Hello, I'm a Sys Admin for a small (but successful and growing) company (~60 employees). I've got roughly 5-6 years of actual sys admin experience, plus another 5+ years of lower level work in the industry. I'm responsible for most everything above a helpdesk level in the company (server[windows]/network[cisco]/firewall/SAN[emc] setup/configuration/maintenance/troubleshooting), lead many projects, analyze system data -- I'm sure you've heard it all before...I have a bunch of certs, most are just "nice to have", but the ones that actually apply to my role are CCNA, MSCE, VCP (VMware). If things go wrong, I'm first in line to resolve the issue. I'm not management (no one reports to me). I've seen many of these sorts of questions online before, and I know the typical response is "too many variables, depends on location, industry type" etc etc. I'm just wondering (ballpark) what I should be looking for. I've tried to give as much detail as I can, but if I'm missing something, I'd be glad to post it. Thanks anyone.

Read the article
Secondary DHCP server won't start on Centos 6.2

- by Slowjoe

I'm trying to create a backup DHCP server. Server times are in sync. Primary server starts fine. Secondary server won't start. Error from /var/log/messages is: Sep 15 14:47:45 stream dhcpd: Copyright 2004-2010 Internet Systems Consortium. Sep 15 14:47:45 stream dhcpd: All rights reserved. Sep 15 14:47:45 stream dhcpd: For info, please visit https://www.isc.org/software/dhcp/ Sep 15 14:47:45 stream dhcpd: /etc/dhcp/dhcpd.conf line 25: invalid statement in peer declaration Sep 15 14:47:45 stream dhcpd: #011max-response-default Sep 15 14:47:45 stream dhcpd: ^ Sep 15 14:47:45 stream dhcpd: /etc/dhcp/dhcpd.conf line 41: failover peer dhcp-failover: not found Sep 15 14:47:45 stream dhcpd: failover peer "dhcp-failover" Sep 15 14:47:45 stream dhcpd: ^ Sep 15 14:47:45 stream dhcpd: /etc/dhcp/dhcpd.conf line 49: failover peer dhcp-failover: not found Sep 15 14:47:45 stream dhcpd: failover peer "dhcp-failover" Sep 15 14:47:45 stream dhcpd: ^ Sep 15 14:47:45 stream dhcpd: WARNING: Host declarations are global. They are not limited to the scope you declared them in. Sep 15 14:47:45 stream dhcpd: /etc/dhcp/dhcpd.conf line 70: failover peer dhcp-failover: not found Sep 15 14:47:45 stream dhcpd: failover peer "dhcp-failover" Sep 15 14:47:45 stream dhcpd: ^ Sep 15 14:47:45 stream dhcpd: /etc/dhcp/dhcpd.conf line 78: failover peer dhcp-failover: not found Sep 15 14:47:45 stream dhcpd: failover peer "dhcp-failover" Sep 15 14:47:45 stream dhcpd: ^ Sep 15 14:47:45 stream dhcpd: Configuration file errors encountered -- exiting Sep 15 14:47:45 stream dhcpd: Sep 15 14:47:45 stream dhcpd: This version of ISC DHCP is based on the release available Sep 15 14:47:45 stream dhcpd: on ftp.isc.org. Features have been added and other changes Sep 15 14:47:45 stream dhcpd: have been made to the base software release in order to make Sep 15 14:47:45 stream dhcpd: it work better with this distribution. Sep 15 14:47:45 stream dhcpd: Sep 15 14:47:45 stream dhcpd: Please report for this software via the CentOS Bugs Database: Sep 15 14:47:45 stream dhcpd: http://bugs.centos.org/ Sep 15 14:47:45 stream dhcpd: Sep 15 14:47:45 stream dhcpd: exiting. Config file contents: # DHCP Server Configuration file. # see /usr/share/doc/dhcp*/dhcpd.conf.sample # see 'man 5 dhcpd.conf' # option domain-name "eng.foo.com"; option domain-name-servers ns0.eng.foo.com, ns1.eng.foo.com; option ntp-servers ntp.eng.foo.com; #option time-servers ntp.eng.foo.com; default-lease-time 3600; max-lease-time 7200; authoritative; log-facility local7; failover peer "dhcp-failover" { secondary; address 10.0.1.70; port 647; peer address 10.0.1.11; peer port 647; max-response-default 30; max-unacked-updates 10; load balance max seconds 3; } # # Management subnet # subnet 10.0.0.0 netmask 255.255.255.0 { option subnet-mask 255.255.255.0; option broadcast-address 10.0.0.255; option routers 10.0.0.1; option domain-search "eng.foo.com", "foo.com"; # Unknown clients get this pool pool { failover peer "dhcp-failover"; max-lease-time 300; range 10.0.0.240 10.0.0.249; allow unknown-clients; } # Known clients get this pool pool { failover peer "dhcp-failover"; max-lease-time 28800; range 10.0.0.150 10.0.0.199; deny unknown-clients; } include "/etc/dhcp/dhcpd.conf-engmgmt"; } # # Data subnet # subnet 10.0.1.0 netmask 255.255.255.0 { option subnet-mask 255.255.255.0; option broadcast-address 10.0.1.255; option routers 10.0.1.1; option domain-search "eng.foo.com", "foo.com"; # Unknown clients get this pool pool { failover peer "dhcp-failover"; max-lease-time 300; range 10.0.1.240 10.0.1.249; allow unknown-clients; } # Known clients get this pool pool { failover peer "dhcp-failover"; max-lease-time 28800; range 10.0.1.150 10.0.1.199; deny unknown-clients; } # For centos network installs if substring (option vendor-class-identifier, 0, 8) = "anaconda" { filename "/autohome/distro/ks/"; next-server eng-data.eng.foo.com; } # For PXE network installs if substring (option vendor-class-identifier, 0, 9) = "PXEClient" { filename "pxelinux.0"; next-server eng-data.eng.foo.com; } # For KVM PXE network installs if substring (option vendor-class-identifier, 0, 9) = "Etherboot" { filename "pxelinux.0"; next-server eng-data.eng.foo.com; } include "/etc/dhcp/dhcpd.conf-engdata"; }

Read the article
an unknown ip on network

- by Ahmed safan

In our office we have many PCs, all of them have static IP addresses. We had a problem with one server with ip 192.168.1.10 dropping off the network occasionally. I unplugged the network cable from the server and from pinged 192.168.1.10 from another host and there was a response. I searched all PCs to see if any has such ip but i didn't found a one. I changed the server ip to fix the problem, but I still find this rogue device using 192.168.1.10 on the network -- how can I figure out what it is? Could it be the ip of virtual machine on someone's PC?

Read the article
Are SANs unreliable?

- by chaos

So at the place where I wear one of my various hats, this one representing a development rather than admin role, there's been an initiative to move to SANs. So far, I have been spectacularly unimpressed. First it was this behavior where, when MySQL databases are on the SAN, the first few tables that anything tries to hit after the system boots come up as nonexistent and MySQL has to be restarted before it realizes they're actually there. Then today, on multiple systems (including the primary SVN repository, ever-so-wonderfully) we get SAN mounts spewing IO errors and the filesystems going into read-only, which is the kind of behavior I expect from directly mounted naked disks, not fault-tolerant managed storage. Right now, I'm at the point where if I were putting together a project and somebody said "hey we should use SANs", my response would be "GTFO". So basically I want to know whether my experience is typical or even common, or whether I'm having some kind of freakishly bad luck with SANs. The systems these SANs are attached to are all CentOS machines, if that's relevant.

Read the article
Ignoring GET parameters in Varnish VCL

- by JamesHarrison

Okay: I've got a site set up which has some APIs we expose to developers, which are in the format /api/item.xml?type_ids=34,35,37&region_ids=1000002,1000003&key=SOMERANDOMALPHANUM In this URI, type_ids is always set, region_ids and key are optional. The important thing to note is that the key variable does not affect the content of the response. It is used for internal tracking of requests so we can identify people who make slow or otherwise unwanted requests. In Varnish, we have a VCL like this: if (req.http.host ~ "the-site-in-question.com") { if (req.url ~ "^/api/.+\.xml") { unset req.http.cookie; } } We just strip cookies out and let the backend do the rest as far as times are concerned (this is a hackaround since Rails/authlogic sends session cookies with API responses). At present though, any distinct developers are basically hitting different caches since &key=SOMEALPHANUM is considered as part of the Varnish hash for storage. This is obviously not a great solution and I'm trying to work out how to tell Varnish to ignore that part of the URI.

Read the article
Motorola SBG6850 / Linksys WRT54G network problem

- by user96407

I am trying to resolve issues with connecting my desktop and LAN capable printer to my network. I recently upgrade to the Motorola Cable Modem Gateway SBG6580 and have TWC coming into it, this works great for wired and wireless connectivity. Although, I am unable to connect to my device from this modem gateway. So, I am trying to cable a Linksys WRT54G (firmware 4.21.4 build 0) to the backside of the SBG6850 so I can use my printer on my network from both my wired desktop and wireless devices. I am pulling wireless off of the SBG6580 and do not want to change this. I have disable the wireless feature on the Linksys WRT54G at this moment. Can someone please help me through this dilemma? I am open to both wired and wireless solutions, but please tell me which approach your sharing in the first line of your response. Cheers!

Read the article
SQL 2008 Mirroring, how to failover from the mirror database?

- by Luis

I have configured a database mirroring setup in SQL 2008 using the High-safety, Synchronous mode, without automatic failover. I don't have a Witness instance. Regarding high availability, I understand Mirroring is a better strategy than Log Shipping (faster and smoother failover), and cheaper than Clustering (because of license and hardware costs). According to the MS docs, to do the failover you need to access to the Principal database and in the "Mirror" options click the "Failover" button. But I want to do this from the Mirror database, because what would be the benefit as all this setup is being done in case the Principal server knocks down? Evidently I am missing something. If Mirroring is not a solution for server downtime (as would be Clustering, if I understand correctly), then which practical (i.e. real world examples) cases would benefit from Mirroring for high-availability purposes? Thank you very much for your response! I really need some enlightment.

Read the article
Monitor for HD video editing

- by Kato

I have been researching for days and nights on a good monitor to buy for a Mac Pro with an ATI Radeon 2600 XT (256mb). It will be used extensively for HD video editing (1080p) and photo editing, and likely also digital/3D animation next year(a lot of FCP + CS4). I am a student, so money is a little bit of an issue, but I want something that I'll be able to use semi-professionally after I'm done school, and am willing to finance something if it is worth the cost. I'm HOPING for something under $1000 though. The IPS Ultrasharps from Dell seem to be getting good reviews from other video editors. Accurate colour correction is a concern for me (hopefully something that covers Adobe spectrum), as well as a decent response time, HD resolutions, and DVI port. Also something with good gradient/definition in black areas, as this is difficult for editing on most LCDs. 1X1 pixel, brightness, good DVD playback etc. Hopefully this is not impossible to find for under $2000!

Read the article
nginx won't respond to monit

- by Miko

Although EngineX is running, monit can't seem to figure it out. Here's my monit log: [PDT Apr 13 02:19:19] error : HTTP error: Server returned status 400 [PDT Apr 13 02:19:19] error : 'nginx' failed protocol test [HTTP] at INET[localhost:80] via TCP [PDT Apr 13 02:19:19] info : 'nginx' trying to restart [PDT Apr 13 02:19:19] info : 'nginx' stop: /etc/init.d/nginx [PDT Apr 13 02:19:20] info : 'nginx' start: /etc/init.d/nginx The monitrc file contains the following configuration: if failed port 80 protocol http and request '/ping.txt' # check for response with timeout 20 seconds then restart I can access the file through lynx http://localhost:80/ping.txt without any problems. Why would monit have trouble requesting the file when nginx is running just fine?

Read the article
Monitoring mongrel with monit

- by matnagel

I wrote a monit.d file for mongrels which works in this version: check process redmine with pidfile /home/redmine/service/redmine.pid group webservice start program = "/usr/bin/mongrel_rails start -p 41328 -e production -d --pid /home/redmine/service/redmine.pid --user redmine --group redmine -a 127.0.0.1 -c /home/redmine/app" stop program = "/usr/bin/mongrel_rails stop --pid /home/redmine/service/redmine.pid -c /home/redmine/app && rm /home/redmine/service/redmine.pid > /dev/null 2>&1 if cpu greater 50% for 2 cycles then alert if cpu greater 80% for 3 cycles then restart if totalmem greater 60.0 MB for 5 cycles then restart if loadavg (5min) greater 4 for 8 cycles then restart if 3 restarts within 5 cycles then timeout $ Checking monit control file syntax... $ Control file syntax OK I want to also monitor the http response, so I add this line at the end: if failed port 41328 protocol http with timeout 10 seconds then restart Now monit complains: $ Checking monit control file syntax... $ /etc/monit.d/redmine:16: Error: exceeded maximum number of program arguments 'http' $ ERROR: CHECK MONIT CONFIG FILE SYNTAX How do I correctly monitor the port?

Read the article
HTTP Range request rejected

- by Dan

I am trying to understand why my production environment might be disallowing HTTP RANGE requests. I have a pool of W2K8x64/IIS7 servers behind a pair of Netscaler 9000s. I compose the following request in Fiddler: http://myorigin.example.com/file.flv User-Agent: Fiddler Host: myorigin.example.com Range: bytes=40000-60000 The response looks like: HTTP/1.1 200 OK Cache-Control: public Content-Type: video/x-flv Expires: Thu, 24 Jun 2010 18:23:53 GMT Last-Modified: Sat, 11 Apr 2009 00:16:14 GMT Accept-Ranges: none ETag: f9d5c718-e148-4225-9ca6-d1f91a2a3c08-_633749805744270000 Server: Microsoft-IIS/7.0 Edge-Control: max-age=2592000 X-Powered-By: ASP.NET Date: Tue, 25 May 2010 18:23:53 GMT Content-Length: 443668 "Accept-Ranges: none" tells me that the range request was rejected, but I am not sure where/why as IIS7 accepts Range by default. Could the 'scalers be shooting it down? Thanks, Dan

Read the article
Mac OSX server command equivalent for dhclient?

- by John Hall

Is there an MacOS command that makes a dhcp request, and renews the old lease, drops it for a new one, or usefully reports errors or lack of response from a dhcp server? This would both help fix networking on the machine after problems on the network without rebooting and would also be useful to diagnose wider networking problems from a mac. I can not find any command equivalent of dhclient though obviously some component must be serving this purpose. The question is, is that component exposed to a command line interface? I am biased to the command line for these features and may have overlooked settings panels or tools that might solve it using a gui interface. I believe this question is at the heart of this other question: Is there an equivalent command for 'init.d/networking restart' in OS X

Read the article
Burned white shadow on 24inch monitor

- by elias94xx

So I got this brand new monitor today an noticed the following problem: This happens while I'm moving my browser window for example. It's not font related, it also happens with icons as you can see on the picture. It's only persistend while I'm moving something, the faster I move it, the farther away is the shadow from the origin. I tested it on windows, linux and two different systems with DVI and VGA. Is this a known issue ? Specifications: Name: Acer S242HLCBID 1920x1080 @ 60hz 2ms response time contrast: 100.000.000:1 manufacture date: week 48 2011 LED backlights

Read the article
Can I configure a DNS cache not to forward AAAA queries?

- by itsadok

I'm setting up an internal DNS cache because my firewall is having trouble handling all the sessions created by DNS requests. I tried using bind9, dnsmasq and DJB dnscache, they all help reduce the number of requests leaving my network, but there are still a lot of request being made. Looking at the log files, and tcpdump and dnstop outputs, it seems that requests that return SERVFAIL do not get cached at all. And a lot of those failed requests are AAAA requests, which is a shame, because I do not have ipv6 enabled on any server. I've looked at several ways to help the situation, and I think if I could somehow prevent AAAA record requests from being forwarded by the DNS cache, it would reduce the number of requests significantly. The closest thing I found was the filter-aaaa-on-v4 option in BIND9. However, this only removes the record from the server response, and does not prevent it from forwarding it. Any help would be appreciated.

Read the article
Is there any SMS/MMS server for LAN environment

- by Chau Chee Yang

I am looking for a solution to send SMS/MMS message to mobile device from desktop or browser in LAN environment. As such, it is most probably using TCP/IP protocol to transmit request/response. The server may attach to a GSM device with SIM card attached. An server application would then start accept the request from any LAN client and convey the SMS/MMS to one or more recipients. The server may log all requests for further traffic analysis in later stage. Is there any solution that able to perform what I describe here. Please advice.

Read the article
Using client certificates with wget

- by Doc

I cannot get wget to use the client certificates. The documentation speaks about using the --certificate flag. The use of the certificate flag is clear, I set it to use the PEM version of the client certificate. But when I connect I get the following error: HTTP request sent, awaiting response... Read error (error:14094410:SSL routines: SSL3_READ_BYTES:sslv3 alert handshake failure; error:140940E5:SSL routines:SSL3_ READ_BYTES:ssl handshake failure) in headers. Giving up. ssl handshake failure means the client did not supply a correct client cert. Still the client cert I use, works in a browser. Note: When I disable client authentication on the server, wget can connect. Note: The use of curl is suggested, but I'd like to avoid the switch.

Read the article
1080p playback on external monitor

- by xibalban

My system (netbook) specs: 1.6 GHz dual core atom N2600 2 GB DDR3 RAM Integrated GMA3600 GPU Win 7 Professional 32 Bit Daum Pot Player V-1.5 The issue: I downloaded a 1.33 GB sized 1920 x 1080 HD documentary (file extension: mp4) and it plays without a hitch using pot player. However, when I connected an external display (an LED Full HD 24" monitor) using D-Sub, the video plays fine but the player controls become very unresponsive. For instance, it takes about 40 seconds to exit full screen while playing. I tried: Installed/updated all the latest monitor drivers Updated the VGA drivers for GMA3600 No other programs ran while the video played, with most unwanted services and background processes disabled/killed. CPU usage goes only up to 49% when the video plays Question: What may I do in order to improve the player response/video playback experience? Do I need to play with (or change) Pot Player's default video decoders, etc?

Read the article
DNS server failure when forwarding

- by Abraham Katz

I run Bind 9 on a Ubuntu 12.04 server. I want this server to be a sort of a "wrapper" over my default server, so that it will respond to "domain_name.My_TLD" itself and forward requests to any other request. The server resides in a domain (Disconnected from the internet), so I configured it to zone "company_domain."{ type forward; forwarders { 1.2.3.4 }; #the DC's ip }; When i query it about sommething.company_domain. it sends a query to the DC and gets a response, but it returns "server failure". What can cause that? Cheers, Abraham

Read the article
How to disable Apache http compression (mod_deflate) when SSL stream is compressed

- by Mohammad Ali

I found that Goggle Chrome supports ssl compression and Firefox should support it soon. I'm trying to configure Apache to to disable http compression if the ssl compression is used to prevent CPU overhead with the configuration option: SetEnvIf SSL_COMPRESS_METHOD DEFLATE no-gzip While the custom log (using %{SSL_COMPRESS_METHOD}x) shows that the ssl layer compression method is DEFLATE, the above option did not work and the http response content is still being compressed by Apache. I had to use the option: BrowserMatchNoCase ".Chrome." no-gzip' I prefer if there are more general method in case other browsers supports ssl compression or some has a version of chrome that does not have ssl compression.

Read the article

< Previous Page | 191 192 193 194 195 196 197 198 199 200 201 202 | Next Page >