Search Results

Search found 7777 results on 312 pages for 'my resources'.

Page 237/312 | < Previous Page | 233 234 235 236 237 238 239 240 241 242 243 244  | Next Page >

• Finding all IP ranges blelonging to a specific ISP

  - by Jim Jim

  I'm having an issue with a certain individual who keeps scraping my site in an aggressive manner; wasting bandwidth and CPU resources. I've already implemented a system which tails my web server access logs, adds each new IP to a database, keeps track of the number of requests made from that IP, and then, if the same IP goes over a certain threshold of requests within a certain time period, it's blocked via iptables. It may sound elaborate, but as far as I know, there exists no pre-made solution designed to limit a certain IP to a certain amount of bandwidth/requests. This works fine for most crawlers, but an extremely persistent individual is getting a new IP from his/her ISP pool each time they're blocked. I would like to block the ISP entirely, but don't know how to go about it. Doing a whois on a few sample IPs, I can see that they all share the same "netname", "mnt-by", and "origin/AS". Is there a way I can query the ARIN/RIPE database for all subnets using the same mnt-by/AS/netname? If not, how else could I go about getting every IP belonging to this ISP? Thanks.

  Read the article

• Properly force SSL with .htaccess, no double authentication

  - by cwd

  I'm trying to force SSL with .htaccess on a shared host. This means there I only have access to .htaccess and not the vhosts config. I know you can put a rule in the VirtualHost config file to force SSL which will be picked up there (and acted upon first), preventing double authentication, but I can't get to that. Here's the progress I've made: Config 1 This works pretty well but it does force double authentication if you visit http://site.com - once for http and then once for https. Once you are logged in, it automatically redirects http://site.com/page1.html to the https coutnerpart just fine: RewriteEngine On RewriteCond %{HTTPS} !=on RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301] RewriteEngine on RewriteCond %{HTTP_HOST} !(^www\.site\.com*)$ RewriteRule (.*) https://www.site.com$1 [R=301,L] AuthName "Locked" AuthUserFile "/home/.htpasswd" AuthType Basic require valid-user Config 2 If I add this to the top of the file, it works a lot better in that it will switch to SSL before prompting for the password: SSLOptions +StrictRequire SSLRequireSSL SSLRequire %{HTTP_HOST} eq "site.com" ErrorDocument 403 https://site.com It's clever how it will use the SSLRequireSSL option and the ErrorDocument403 to redirect to the secure version of the site. My only complaint is that if you try and access http://site.com/page1.html it will redirect to https://site.com/ So it is forcing SSL without a double-login, but it is not properly forwarding non-SSL resources to their SSL counterparts. Regarding the first config, Insyte mentioned "using mod_rewrite to perform a simple redirect is a bit of overkill. Use the Redirect directive instead. It's possible this may even fix your problem, as I believe mod_rewrite rules are some of the last directives to be processed, just before the file is actually grabbed from the filesystem" I have not had no such luck on finding a force-ssl config option with the redirect directive and so have been unable to test this theory.

  Read the article

• How to configure Hyper-V failover cluster to live migrate when dynamic memory runs out?

  - by Matt Johnson

  Appologies in advance that this is not a direct programming question, but I have a feeling that the solution involves custom powershell scripts (maybe), so this is as good a place to ask as any. I maintain a website that has a large Hyper-V cluster for SQL Servers. We are using Windows 2008 R2 SP1, and the new "dynamic memory" feature. I've already ready reviewed the Best Practices Guide, and implemented it's suggested configuration. Everything works well, except that when SQL demand increases memory pressure to expand to more memory than is available on the physical machine, the memory status goes into the "Warning" state and stays there. I assume the hypervisor is using a swapfile on the host to fulfill the memory requirement, thus slowing the virtual machine down. When this happens, there are plenty of other nodes in the cluster that have available resources. I can live-migrate the virtual server over there and everything works, and the warnings go away. Now how can I automate this? I see no menu options in either Hyper-V or the Failover Cluster Manager for performing a migration or shutdown when dynamic memory goes into the warning state. Any ideas about how to script this, or monitor it and invoke the action directly, would be helpful. If the solution involves coding, powershell would be ideal, but I could envison this as a .Net Service that monitors for this state and kicks off the migration request. I just don't know what objects are involved in doing the monitoring or kicking off the live migration. Thanks in advance.

  Read the article

• Router slowing my connection?

  - by Roberto

  I have a Linksys WRT54G and I pay for a 12Mbps connection. I've been testing my connection using speedtest.net for many days and always get 8Mbps. I called the support and they told me to bypass the router and test. I did it and got 16Mbps (much more than I pay for), so I thought "this guy just changed my speed so can he blame my router", and he blamed it. But to my surprise, everytime I bypass the router I get 16Mbps and when I use the router I get 8Mbps. Is this guy trolling me somehow (configuring the VOIP-modem-stuff to different profiles depending o the MAC address connecting to it) or is my router a POS? How can I find out? I don't know what's the thing the router connects to, it's a kind of VOIP adapter; the link is this one, but unfortunately I don't think you'll understand because it's in Portuguese. I know they can remotely connect to it, that's the origin of my conspiracy theory :) I just tested wired to the router and got 10Mbps (and still 8Mbps on wifi and 16Mbps without router) O_o I'm 5cm away from my router, so no obstacles to interfere, right? ------ UPDATE ------- It's a WRT54G V8, I'm using firmware v8.00.7 (will install 8.00.8 tomorrow, but I saw that it's only a minor fix to UPnP denial of service security vulnerability). Results: IPerf LAN-LAN: 80Mbps IPerf LAN-WLAN: 19Mbps (therefore we can ignore wireless issues/settings) I wasn't able to make the (W)LAN-WAN NAT-enabled test with IPerf, I get a connection refused error. I'm not sure if did it right: ran in server mode, configured router to forward that port to my IP and tried to connect to my internet IP that got from this site. I don't think there is a way to disable NAT using this firmware. Question: Let's suppose it's an underpowered hardware issue. Is it right to assume that custom firmwares could resolve the issue because they are possibly better implemented and would make better use of the router resources? I couldn't find any references pointing to wired performance improvements with the use of custom firmware.

  Read the article

• puppet cert mismatch in ec2

  - by Stick

  I'm setting up a puppetmaster (2.7.6) in ec2 via gems (on rhel6) and I'm running into problems with the cert names and getting the master able to talk to itself. my puppet.conf looks like this: [main] logdir = /var/log/puppet rundir = /var/run/puppet vardir = /var/lib/puppet ssldir = $vardir/ssl pluginsync = true environment = production report = true certname = master When I start the puppetmaster process the ssl directory looks like: ssl/private_keys/master.pem ssl/crl.pem ssl/public_keys/master.pem ssl/ca/ca_crl.pem ssl/ca/signed/master.pem ssl/ca/ca_crt.pem ssl/ca/ca_pub.pem ssl/ca/ca_key.pem ssl/certs/ca.pem ssl/certs/master.pem I have an /etc/hosts entry on the box to point the 'puppet' hostname to localhost so that I don't have to change the 'server' option. When I run the agent I get the following: # puppet agent --test info: Retrieving plugin err: /File[/var/lib/puppet/lib]: Failed to generate additional resources using 'eval_generate: Server hostname 'puppet' did not match server certificate; expected master err: /File[/var/lib/puppet/lib]: Could not evaluate: Server hostname 'puppet' did not match server certificate; expected master Could not retrieve file metadata for puppet://puppet/plugins: Server hostname 'puppet' did not match server certificate; expected master err: Could not retrieve catalog from remote server: Server hostname 'puppet' did not match server certificate; expected master warning: Not using cache on failed catalog err: Could not retrieve catalog; skipping run err: Could not send report: Server hostname 'puppet' did not match server certificate; expected master If I specify the certname as the server (with corresponding hosts entry) I get: # puppet agent --test --server master info: Retrieving plugin err: /File[/var/lib/puppet/lib]: Could not evaluate: Could not retrieve information from environment production source(s) puppet://master/plugins info: Caching catalog for master info: Applying configuration version '1321805956' notice: Finished catalog run in 0.05 seconds Which is success of a sort, that source error will bite me later when I'm applying manifests. I've tried a couple of other variations with using the ec2 private hostname and gotten mixed results. I'd like to avoid setting server = 'x' and use dns/hosts to control what 'puppet' resolves to in order to decide which server (plays easier with availability zones, etc)

  Read the article

• nginx+passenger +static websites= problems

  - by Eugene K

  I've got a Rails app that nginx serves through passenger. I'd also like to serve some static content for a different domain name. But when I add another server block to my config, both websites become unavailable returning HTTP 204. What have I done wrong? What can I do to fix it? Here's the http block of my nginx.conf: https://gist.github.com/4243256 Here's what I added : server { listen 80; server_name website2; root /var/www/website2; location / { index index.html; } } It's going to be a Rails app as well at some point in the future (though I'm not really sure about that, maybe I'm going to use a different back-end solution.) Either way, I don't want anything dynamic to eat away the resources just yet. As of now, this website consists of nothing but index.html and stylesheet.css files in the root directory. What should I do? Thank you in advance. Sincerely yours, Eugene.

  Read the article

• How to disable all bounce back email in exim 4.69

  - by liame

  I have set up an email server to send out solicited newsletters. There should be no "regular" users of this server, so it is not desirable to send bounce notifications back to the recipient. Especially so since I am tracking bounces myself by parsing the log files periodically. What I want is to unconditionally prevent exim from ever sending a bounce notification email back to a sender. How can I do this? Thank you! (I accidentally posted this to superuser before posting it here, disregard that if you come across) What I want is an email server that will accept all incoming emails, deliver it accordingly (that is remotely or locally) and not send a bounce notification the sender upon bounce. I log bounces myself, in a database. The only function bounce messages have in my setting is to waste resources and bandwidth. I need to send emails fast, using exiwhat during a run, I see a significant number of deliveries to [email protected]. I could potentially increase my email productivity by 10~20% if all bounce emails are eliminated.

  Read the article

• Microsoft Remote Desktop Services - Android

  - by Matt Rogers

  We have recently started testing Remote Desktop Services. We have deployed the environment using the latest server, Windows Server 2012 R2. We have deployed the Web Access Roles, RD Gateway, Connection Broker Virtualization Host and Session Host. We are running both, Virtual machine-based and Session-based deployments. All of these are working as expected internally and externally when using a Windows workstation as the RDS client, however, the Android client is unable to launch applications. Once you install the app from Google Play you are given a screen to add Remote Resources. After entering the appropriate URL, username and password we see the applications that have been published. Unfortunately, when we attempt to launch an app we get the following error: Connection Error Host not found. Please provide the fully-qualified name or the IP address of the host. We have already entered this information otherwise I don't believe we would be able to see the published applications. I think the error is related to the certificate and how it is being used to connect to the applications. Since this is in our lab environment we have not configured a valid external certificate on the servers and the trusted certificate that is installed on the android tablet points to our internal server / domain name. What I would like to know: Has anyone configured RDS Web Access on Server 2012 R2 and attempted to externally connect an Android or iOS device using the Microsoft supported Remote Desktop client. Are others experiencing the same problem we are? Were you able to resolve the issue? Was it related to the external cert / host name?

  Read the article

• Is there a way to tell SGE to run specific jobs as root on the execution node?

  - by Rick Reynolds

  The title kinda says it all... We're using SGE/OGE to submit jobs to a set of worker nodes that then do things with specific pieces of equipment. The programs and scripts that have been created that manipulate this equipment rely on running as root. I'd like SGE to handle allocation of resources in a way that is mindful of users, groups, projects, etc., but I also need the actual jobs to run with root permissions. I've read up on How can one run a prologue script as root in gridengine? to see if anything there was pertinent, but it seems that SGE is providing the "user@" kind of spec specifically for prolog and epilog kinds of actions. Is there any similar functionality for the job itself? I'm aware of su/sudo approaches, but that won't really work in this environment because the sudoers file isn't globally managed (i.e. I'd have to add a whole set of users to /etc/sudoers on lots of machines). I'm currently looking into a setuid kind of solution, but that would definitely be an unnecessary kind of work-around if SGE provides me a way to declare that a specific job (or jobs in a specific queue) always needs to run with a specific user's rights.

  Read the article

• Inter-vlan routing issues

  - by DKNUCKLES

  I've been brought in to help administer a network and I've run into an issue - I'm not sure why this one is beyond me, however I figure an extra set of eyes on the problem may help resolve the issue. I have an HP MSM720 controller and at the time I'm trying to set up a basic hotspot set up with access points. For the time being I'm just looking to have people authenticate with a PSK and access the internet and other resources (namely printers) on other vlans. The user authenticates and the DHCP server on the controller gives them a 192.168.1.0/24 address. They are able to successfully browse the internet and ping machines on other networks, however they are unable to print to network printers that sit on the same LANs as the very computers that wireless clients can ping. The (extremely simplified) topology is as follows Computers on the wireless 192.168.1.1 network are able to ping computers on the 192.168.0.0 network, however cannot ping or print to the printers on the same network. I'm baffled and I have no idea why this is the case. Can anyone shed some light on this for me? Can someone spot the error of my configuration? EDIT : It should be noted that for whatever reason other computers on the 10.0.100.0/24 network cannot even ping the gateway of the Wireless Access network (192.168.1.1) - I'm not sure if this is relevant. These are the VLANS listed on the controller.

  Read the article

• Multiple SVN repos on Debian HTTPd vhost setup

  - by Jonathon Reinhart

  I would like to have my svn/http server setup so I can access multiple repositories via a "svn" subdomain: https://svn.example.com/repo1 https://svn.example.com/repo2 I am using Debian 6, and already have multiple vhosts set up via the standard sites-available method. Resources and their problems: How To: subversion SVN with Apache2 and DAV This one doesn't deal with a server with multiple vhosts. Installing and Configuring Subversion This one only considers one subversion repository. This one does show putting the SVN DAV <Location> in the svn vhost file. However, it doesn't say whether to put it inside or outside the <VirtualHost> tag. Does this really limit the subversion access to just that vhost? I just tried, and can access /foorepo from any subdomain. Setting Up Subversion And Trac As Virtual Hosts On An Ubuntu Server This one appears to be very close, but I can still access repos from any vhost. In other words, it doesn't matter what subdomain I specify, as long as the path matches the repo name. Doesn't make any sense. And yes, my <Location> tag is inside the <VirtualHost>. A lot of these articles seem to have been written in 2006 or earlier, and don't necessarily conform to the configuration methods that newer distros are using. Can anyone guide me in the right direction?

  Read the article

• Citrix Access Gateway with Citrix Receiver

  - by vm370

  I'm currently using a Citrix Access Gateway with firmware 5.0.4 to provide access over an SSL-VPN to an isolated environment, which is connected to over the Citrix Access Gateway Client, which is delivered by the device by default. However we encountered different problems, e.g. that it's somehow not possible to get it out of the autostart (not registered as a service or in the autostart?!) and it killed the Cisco VPN Client, which is used in the company and unfortunately cannot be replaced. The Cisco client can also just be used again after a procedure with cleaning the registry from all CAG Client remains, which requires a lot of effort. Because of that, I'd like to check if there is an alternative to this client, since is this is a real pain... Unfortunately I couldn't find a way to use the Receiver with the CAG yet, but if you have any resources on how to build this workaround, I'd be very happy. Thanks a lot in advance UPDATE: If there are other alternatives I'd be even more happy, since using the Receiver would also mean that there is an issue with the ICA-Client, which is also used in our environments. From my experience, the Receiver and the ICA-Client are also no good friends...

  Read the article

• Time drift in Cloud Server - need to mainpulate GRUB config

  - by Aditya Advani

  We are hosting a VPS on a popular host and are experiencing a regular time drift of several minutes a day forward (approx 7). Linux Kernel: 2.6.18-164.11.1.el5 GNU/Linux Distro: CentOS release 5.4 (Final) We reached out to our hosting provider and their support advised us " This is a known issue with Cloud Servers. To fix this you will need to add one line to your grub config located at: /boot/grub/menu.lst The line you need to add is: noapic nolapic divider=10 nolapic_timer This should correct this issue. You will need to restart after this is added in. " Because I am wary of manipulating grub, mostly I'm terrified that our server may fail to restart - I ask you guys, the pro *nix admins - where exactly in this file does the recommended insertion below: # line from 1&1 for time syncing issue (Case 5163) noapic nolapic divider=10 nolapic_timer go? Please specify where exactly, and whether the order of commands is or is not important. Why is the block below "title CentOS ..." indented? If someone could give me an overview of how this works or point me to a resource that's easy to follow, that's what I'm looking for immediately, a light overview or basic understanding of what I;m doing. If GRUB and bootloaders are a deep dark treasure trove of kernel hacking or something, that's great well-recommended in-depth resources are also very welcome. This is my current /boot/grub/menu.lst # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file #boot=/dev/sda # serial --unit=0 --speed=57600 terminal --timeout=5 serial console timeout=5 title CentOS (2.6.18-164.11.1.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-164.11.1.el5 ro root=/dev/hda1 console=tty0 console=tty initrd /boot/initrd-2.6.18-164.11.1.el5.img MOST IMPORTANT: I need to know where in the file above it is appropriate to paste the suggested line so I can confidently restart my VPS after manipulating GRUB config

  Read the article

• DRBD on a disk with existing file system that takes all the place

  - by Karolis T.

  I'm currently trying to simulate the environment via XEN. I have installed two debian systems with such FS layout: cltest1:/etc# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda2 6.0G 417M 5.2G 8% / tmpfs 257M 0 257M 0% /lib/init/rw udev 10M 16K 10M 1% /dev tmpfs 257M 4.0K 257M 1% /dev/shm Host cltest2 is identical. Here's my drbd.conf global { minor-count 1; } resource mysql { protocol C; syncer { rate 10M; # 10 Megabytes } on cltest1 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.186:7789; meta-disk internal; } on cltest2 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.187:7789; meta-disk internal; } } I have not created filesystem on drbd0 Starting DRBD via init.d script errors out with: Starting DRBD resources: [ d(mysql) /dev/drbd0: Failure: (114) Lower device is already claimed. This usually means it is mounted. [mysql] cmd /sbin/drbdsetup /dev/drbd0 disk /dev/xvda2 /dev/xvda2 internal --set-defaults --create-device failed - continuing! Running: drbdadm create-md mysql gives: cltest1:/etc# drbdadm create-md mysql md_offset 6442446848 al_offset 6442414080 bm_offset 6442217472 Found ext3 filesystem which uses 6291456 kB current configuration leaves usable 6291228 kB Device size would be truncated, which would corrupt data and result in 'access beyond end of device' errors. You need to either * use external meta data (recommended) * shrink that filesystem first * zero out the device (destroy the filesystem) Operation refused. Command 'drbdmeta /dev/drbd0 v08 /dev/xvda2 internal create-md' terminated with exit code 40 drbdadm aborting As I understand, all of my problems are because I don't have unallocated disk space on xvda2. What are my options besides shrinking FS and connecting a separate physical disk? Can't the meta-data be stored on a file in the local filesystem?

  Read the article

• What's hogging my CPU?

  - by endolith

  Ubuntu's System Monitor applet shows 100% CPU usage continuously. If I click it, the resources tab shows it at 100% continuously, too. If I go to processes, though, to find out which process is the culprit, there is nothing above 10%. If I run top there is nothing above 10%. I try killing lots of things, but it continues at 100%. How can I find out what's hogging the CPU? This is an unusual situation on a computer I use daily, that normally only hits 100% CPU when I'm doing something that requires it (like loading 32 Firefox tabs) after which it goes back to a normal idle level. It's not a new install or anything. It shouldn't be maxed out. I'm not sure when it started or if I changed something that caused it to happen. Normally I would use top or System Monitor and find the process that had gone out of control, but I can't find anything with those tools this time. It persists after reboots and everything. And the processor is obviously hot, so it's not an erroneous reading. Update: I tried killing any process I saw active again, and killing vino-server finally fixed the problem, even though it never went above 5%. I had enabled Remote Desktop a few days ago (and have obviously now disabled it). How did it manage to use 100% CPU while top only showed it as 5% or so? How do I identify the culprit in the future? Looks like I'm not the only one: Still a problem in both jaunty & karmic. Interestingly, both System Monitor & htop do not show the sum of individual processes being anywhere near 100% cpu.

  Read the article

• Browser sends http request with RANGE

  - by nute

  I have a local testing environment in a Fedora virtual machine. Strangely, resources (css and js files) don't seem to work. Looking at Firebug, I see that the browser sends the HTTP request with "Range bytes=0-". The server responds with either an empty 200OK or an empty 206 Partial Content. Here is an example: Response Headers Date Mon, 23 Nov 2009 23:33:26 GMT Server Apache/2.2.13 (Fedora) Last-Modified Thu, 19 Nov 2009 22:58:55 GMT Etag "18-3aec-478c14dbee138" Accept-Ranges bytes Content-Length 15084 Content-Range bytes 0-15083/15084 Connection close Content-Type text/css Request Headers Host fedora.test User-Agent Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.5) Gecko/20091105 Fedora/3.5.5-1.fc11 Firefox/3.5.5 Accept text/css,*/*;q=0.1 Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive Referer http://fedora.test/pictures/ Cookie __utma=26341546.1613992749.1258504422.1258569125.1258752550.4; __utmz=26341546.1258504422.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); PHPSESSID=tqf8jfmc77qihe97rl4tmhq685 Range bytes=0- If-Range "18-3aec-478c14dbee138" I don't know if the browser is sending the wrong request, or if it's the server that is doing this. Request made to the outside (such as google analytics) are working fine. This is running in Fedora 11 in VirtualBox. Apache. PHP. The files are being served through the "shared folders" feature of VirtualBox (could it be related?). No error logs could help me.

  Read the article

• Accessing network shares on Windows7 via SonicWall VPN client

  - by Jack Lloyd

  I'm running Windows7 x64 (fully patched) and the SonicWall 4.2.6.0305 client (64-bit, claims to support Windows7). I can login to the VPN and access network resources (eg SSH to a machine that lives behind the VPN). However I cannot seem to be able to access shared filesystems. Windows is refusing to do discovery on the VPN network. I suspect part of the problem is Windows persistently considers the VPN connection to be a 'public network'. Normally, you can open the network and sharing center and modify this setting, however it does not give me a choice for the VPN. So I did the expedient thing and turned on file sharing for public networks. I also disabled the Windows firewall for good measure. Still no luck. I can access the server directly by putting \\192.168.1.240 in the taskbar, which brings up the list of shares on the server. However, trying to open any of the shares simply tells me "Windows cannot access \\192.168.1.240\share You do not have permission to access ..."; it never asks for a domain password. I also tried Windows7 native VPN functionality - it couldn't successfully connect to the VPN at all. I suspect this is because SonicWall is using some obnoxious special/undocumented authentication system; I had similar problems trying to connect on Linux with the normal IPsec tools there. What magical invocation or control panel option am I missing that will let this work? Are there any reasonable debugging strategies? I'm feeling quite frustrated at Windows tendency to not give me much useful information that might let me understand what it is trying to do and what is going wrong.

  Read the article

• How to collect the performance data of a server during an unreachable/down period using Nagios?

  - by gsc-frank

  Some time services and host stop responding due to a poor server performance. I mean, if for some reason (could be lot of concurrency services access, a expensive backup execution on the server or whatever that consume tons of server resources) a server performance is very degraded, that could lead that the server isn't capable to establish any "normal network communication" (without trigger whatever standards timeouts defined for such communication). Knowing host's performance data (cpu, memory, ...) in case of available during that period (host is not down and despite of its performance degradation still allow plugins collect performance data) could be very useful for sysadmin to try to determine what cause the problem, or at least, if the host performance was good and don't interfered at all in the host/service down. This problem could be solved using remote active (NRPE) or remote passive (NSCA) if such remote solutions could store (buffered) perf data to be send to central Nagios server when host performance or network outage allow it. I read the doc of both solutions and can't find any reference to such buffer mechanism neither what happened in case that NSCA can't reach Nagios server. Any idea of how solve this lack of info? so useful for forensic analysis. EDIT: My questions isn about which tools I can use to debug perf problems or gather perf data to analysis, but is about how collect (using Nagios) host perf data even during a network outage for its posterior analysis (kind of forensic analysis). The idea is integrate such data to Nagios graphers like pnp4nagios and NagiosGrapther. I know that I could install tools like Cacti in each of my host, and have a kind of performance data collection redundancy, but I really want avoid that and try to solve all perf analysis requirements with one tools: Nagios

  Read the article

• Black Screen and System Hang - Possibly CPU overheating

  - by Mahesh

  I have this old computer - P4 2.0ghz, 1.2GB RAM and onboard graphics(no external card), 80GBHDD. It has xubuntu installed on it and it regularly hangs when it takes more system resources for say like graphical programs, too many tabs on firefox etc. It just either hangs the system or shows black screen. Tested if it was issue of HD but it wasn't because i have used linux livecd and problem is still the same even if I have removed the HD. I have also tested with USB linux (puppy linux and ubuntu linux on 8gb drives). Tested windows XP as well on this HD and results are the same. Tested another HD on this machine, results are still the same with it. System hangs or goes black screen and requires restart. I thought later it could be thermal heat issue and then applied thermal paste on heatsink but still it fails to work for me. It continues to show symptoms. Another thing which was yet to be tested is changing of CPU fan which was not done because I have not found any fan for old pentium 4 machine in the market. I have to hit online stores (but i am in india and it's hard to find it in online shops which can deliver it to me). So far I don't see this as HD or Monitor or OS issue because I have tested with other HD and results are the same. So it could be either CPU fan or motherboard? What could be possible issue with the hardware?

  Read the article

• Is there a reason to use internal DNS over 8.8.8.8 ?

  - by skylarking

  I've inherited a LAN where there is really no name resolution being done for local resources... i.e. all users enter IP addresses manually to access printers and network shares. There are no LDAP servers or domains either....workstations simply connect to the network without authentication. DHCP is handled via a core switch... And DNS settings are also handed out by this same core switch. Currently, the DNS assignments are as such, and in this order: 10.1.1.50 / old Pentium III Windows 2003 box running DNS service- 128 MB RAM 169.200.x.x / ISP 4.2.2.2. / the well known public one There a couple thousand clients on the LAN....and most of the activity is web browsing ( this is an educational setting ). First of all, the server seems woefully underpowered for this task...yet there is virtually no slowness when web surfing by clients.... How much horsepower should a heavily used DNS server have ? I have also heard using 4.2.2.2 is a bad idea .... since it has been so overused... Finally, wouldn't it make sense to have a robust external DNS server listed first? ( Google's 8.8.8.8 would seem to be a logical candidate )

  Read the article

• Emails from web site sometimes blank or gibberish

  - by John Gardeniers

  Our company has one web site with an online store based on osCommerce. The system sends emails for various reasons, such as password changes, order confirmations, etc., using PHP's mail() function. We occasionally have customers report that the email they received is either blank (email is plain text format) or gibberish (email is in HTML format). In the latter case it's really just HTML that's being displayed as raw text but of course the customers can't read it. In this case the first opening tag's <, and sometimes a few more characters, has gone missing. In an attempt to determine whether this was happening only for certain customers or email systems I configured the web site to send a CC of each message to a service account at my end. Those CC'd messages always arrive intact and display correctly in Outlook. For what it's worth, it seems to happen a little more frequently to Hotmail users but is certainly not limited to them. As the web site is on a shared (Debian) host there's precious little I can do about debugging things from that end, although if I made the right request I feel the hosting company staff would help me, even though they have limited resources to spend on such matters. Any suggestions on what else I might do to try and determine just why those emails are not being received correctly by some customers, yet a CC copy arrives just fine?

  Read the article

• Apache mod_rewrite and mod_vhost_alias Virtual Hosts and %1

  - by Matt Wall

  I have put the main bits of my httpd.conf down below. I am using %1 to get the host field so I can dynamically add vhosts by just creating dns/folders. One problem is I need to reference this: HttpStreamingLiveEventPath "D:/FMSApps/%1" HttpStreamingContentPath "D:/FMSApps/%1" In Apache when I try say to do this: http://test.domain.com/hds-vod/myfile.mp4.f4m it sees the %1 in the logs, and fails. Apache gives me this: [error] mod_jithttp [403]: No access to D:/Content/%1/DefaultContent/eve.mp4 What I'm looking for is the D:/Content/%1/DefaultContent/eve.mp4 to become D:/Content/test/DefaultContent/eve.mp4 Anyone have any useful resources / hints etc. to help me? Meanwhile my Google searching continues...! Listen 80 ServerName main1.rtmphost.com AccessFileName .htaccess ServerSignature On UseCanonicalName Off HostnameLookups Off Timeout 120 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 15 RewriteLogLevel 0 RewriteLog logs/rewrite.log DocumentRoot D:/Content LoadModule vhost_alias_module modules/mod_vhost_alias.so VirtualDocumentRoot "D:/Content/%1" RewriteEngine On <Directory /> Options None AllowOverride None Order allow,deny Allow from all Satisfy all </Directory> <IfModule f4fhttp_module> <Location /vod> HttpStreamingEnabled true HttpStreamingContentPath "D:/FMSApps/%1" Options FollowSymLinks </Location> Redirect 301 /live/events/livepkgr/events /hds-live/livepkgr <Location /hds-live> HttpStreamingEnabled true HttpStreamingLiveEventPath "D:/FMSApps/%1" HttpStreamingContentPath "D:/FMSApps/%1" HttpStreamingF4MMaxAge 2 HttpStreamingBootstrapMaxAge 2 HttpStreamingFragMaxAge -1 Options FollowSymLinks </Location> </IfModule>

  Read the article

• Restoring open software after a restart event in windows

  - by Doltknuckle

  I find that at the end of a long day, I sometimes have a large number of programs running. All which I will need to use tomorrow. Normally, this isn't an issue, I can simply lock the machine and come back tomorrow. My problem arrises when windows update launches in the middle of the night and force restarts my computer. That in turns closes all my open software. I of course save everything regularly so I don't loose anything, but I waste time reopening all of those resources whenever there is a restart. [EDIT] I should clarify that I still want to be able to restart my computer when an update comes down. Preventing the restart only delays the problem until later. I should have been more specific in that I want to be able to recover my working environment after a restart for any reason. Things like scheduled maintence, power loss, updates, and software installs. [EDIT] I can't simply have them setup to launch at startup becasuse those files change from week to week. So I need something that monitors what I have open, and gives me the option to "recover" those software sessions when I log back in. Anyone have any suggestions on what I can do? I'd even be willing to purchase software to do this for me if that is the only option. Thanks

  Read the article

• Is it possible to rate limit based on host headers? i.e. not just on ip address

  - by Blankman

  I have a web service endpoint that I am building where people will post an xml file to, and it will really get pounded with over 1K requests per second. Now they are sending in these xml files via http post, but a good majority of them will be rate limited. The problem is, the rate limiting will be done by the web application by looking up the source_id in the xml, and if it is over x requests per minute, it will not be processed further. I was wondering if I could do rate limit checking earlier in the processing somehow and thus save the 50K file going threw the pipeline to my web servers and eating up resources. Could a load balancer make a call out to verify rate usage somehow? If this is possible, I could maybe put the source_id in a host header so even the XML file doesn't have to be parsed and loaded into memory. Is it possible to just look at host headers and not load up the entire 50K xml file into memory? I really appreciate your insights as this takes more knowledge of the entire tcp/ip stack etc.

  Read the article

• Clustering/load balancing for cluster unaware applications

  - by AaronLS

  Forgive me if I use any of these terms incorrectly. I am wondering if there is any kind of software that would allow my two "join" two computers together such that a cluster unaware application could utilize their combined computing resources? By "cluster unaware" I mean an application that isn't designed to share work across multiple services. My understanding is that clustering is enabled by the specific application by it's architecture, such that messaging with multiple instances of the application coordinate the sharing of work. Instead I am looking for something that enables clustering at the OS or virtualization level, so that any application could essentially be clustered. Failing that, I am also wondering about the following scenario: We have 3 different applications we will call A, B, and C. We have 2 single core computers. At any given time lets say that any combination of those applications will be CPU intensive. In cases where only 2 of those apps are very active, have one of them moved over to a different server. In a nutshell, some sort of dynamic automatic shuffling of the application's load. I have heard of virtual machines that can be migrated across physical machines while live, but I am wondering if this can be done automatically in response to an application's or VM's CPU activity?

  Read the article

< Previous Page | 233 234 235 236 237 238 239 240 241 242 243 244  | Next Page >