Search Results

Search found 11197 results on 448 pages for 'handle leak'.

Page 215/448 | < Previous Page | 211 212 213 214 215 216 217 218 219 220 221 222  | Next Page >

• How to know if my nginx is in good health?

  - by Howard

  I am running a nginx on EC2 (m1.small) for SSL termination. I am using 2 workers on Ubuntu, with latest nginx (stable), the network throughput is around 2Mbps and system load average is around 2 to 3. I am wondering if this system is in good health for now, e.g. what is the queue length (I know nginx can handle a lot of concurrent request, but I mean before the request is being served, how many of them need to wait before being served) what is the average queue time for a given request to be served. I want to know because if my nginx is cpu bounded (e.g. due to SSL), I will need to upgrade to a faster instance. My current nginx status Active connections: 4076 server accepts handled requests 90664283 90664283 104117012 Reading: 525 Writing: 81 Waiting: 3470

  Read the article

• Quick and dirty user management service for Linux VMs?

  - by quack quixote

  Background I have a home server running Debian, and a workstation that runs various VirtualBox VMs (mostly Linuxen but some Windows). At the moment, I'm creating my main user account anew for every new Linux VM. I'd like to make use of a centralized user-management scheme instead, so I can just configure the new VMs for the directory technology and let them handle user lookups automatically. The last time I worked with anything like this, NIS+ was still in fashion. I have a vague notion of what LDAP and Active Directory are, but no knowledge of how to configure them for what I want. Question What user-management/network-directory technology should I use for providing user accounts to my network? The server must run on Debian Lenny. Client configuration should be simple point-at-server-and-go. I need an example configuration for one sample user account. (nice-to-have) I may want to mount the user's home directory from the server. (nice-to-have) The same configuration works with Windows clients.

  Read the article

• 10 System LAN latency with ADSL modem as gateway

  - by itsoft3g

  Recently I expanded LAN in my office from 3 to 10 computers. Structure star topology, one ADSL Modem connected to One Switch which is again connected to 10 computers. Also we have Wifi device Netgear which is connected from switch. ADSL Modem acts as the DHCP Server, all the system will have default gateway IP (ADSL Modem's IP) Network latency is now become very high, All the chat severs disconnect often like google talk, skype etc, also internet become very very slow. when all the computer turned on. We have 4 Mbps Download and 100 Kbps upload Net speed. Its look like ADSL Modem cannot able to handle all the connections. I tried to setup a system as default gateway which will connect to modem, not sure how to do this. Please advice on this.

  Read the article

• 250k connections for comet with node.js

  - by Nenad

  How to implement node.js to be able to handle 250k connections as comet server (client side we use socket.io)? Would the use of nginx as proxy/loadbalancer be the right solution? Or will HA-Proxy be the better way? Has anyone real world experience with 100k+ connections and can share his setup? Would a setup like this be the right one (Quad core CPU per server - start 4 Instances of node.js per Server?): nginx (as proxy / load balancing server) / | \ / | \ / | \ / | \ node server #1 node server #2 node server #3 4 instances 4 instances 4 instances

  Read the article

• Resilient Linux Mail Server Setup

  - by Coops

  How would people design a resilient mail server setup with Linux? On an application level what the system needs to provide is both an incoming and outgoing mail service (i.e. SMTP & IMAP), along with filtering and archive storage (the archive part isn't critical yet, so we'll look at this later probably). What is required on top of this is a resilient system, i.e. one which will handle individual server failures without interrupting service. As such I would term this a High Availability mail system. This is in contrast to a High Performance mail setup, as in our case the volume of mail being handled isn't the important factor, it's simply that it stays online. Having not approached this problem before, the first thing I thought of was a clustered file system (gfs/gluster/etc), combined with heartbeat to failover a floating IP to another box in the case of a server failure. Combined with postfix & dovecot does this sound feasible to people?

  Read the article

• What can I do to enhance MacBook Pro internal mic sound quality in iMovie?

  - by gaearon

  After using MacBook for two years, I bought 17'' MacBook Pro. I'm pretty happy with it, performance and all, but I also was going to record some music videos for YouTube. I play guitar and sing. However I was extremely disappointed with the sound quality that comes by default. I'm 100% sure my 13'' MacBook mic was much better at recording music and singing. Currently mic can't event handle acoustic guitar, outputting sound you'd think was recorded 5 years ago in ARM format on a Nokia phone on a loud concert. It totally feels like some lame filter is cutting low and high frequencies. I want to know what settings (visible or hidden) in iMovie or Mac OS itself I might want to tweak in order to get my MBP mic record clean sound.

  Read the article

• Increasing load capacity for growing website

  - by markxi

  My website currently runs on a dedicated web server (with LiteSpeed) and dedicated MySQL database server. It's a download based site with a lot of user-generated content, which can be streamed and downloaded, there are also thousands of thumbnails and static content. I'm at the stage where the web server can no longer handle the amount of traffic, so I'm looking a how best to increase capacity considering the large amount of downloadable content. My host suggests mirroring everything on a second web server and distributing the load between them using either DNS Made Easy, or to have my own load balancer (using ldirector) in front of the two web servers. Could anyone advise whether the above method would be the best option? Does any one have any experience with DNS Made Easy and/or ldirector? I'd appreciate any help.

  Read the article

• Ideal laptop specs for a Computer Science Masters student?

  - by Ayush

  I have a HP pavillion core 2 duo 2 GHz and 4 GB RAM, and it is painful to use this machine for any kind of coding. Eclipse (especially Juno) literally takes 5 minutes to load. And even after that, everything is lagy. Apart from school stuff, I also use my computer as a television. I watch Hulu, Netflix, YouTube etc in 720p, and this laptop gets hot as hell and the fans are loud enough to wake somebody up from deep sleep. I DON'T use my laptop for Gaming or Video/Photo Editing. I'm looking to buy a new laptop (in which most widely used IDEs would work smoothly and playing hi-def videos wouldn't be too much for the machine to handle) any suggestions (on hardware specs) would be greatly appreciated. Thanks

  Read the article

• Best network tuning variables for a Linux proxy

  - by smarthall

  What are the best settings to tune so that Linux can handle a very large amount of TCP connections such as would be seen by a proxy server or a webserver? I'm using Centos6 and squid and am seeing a large amount of TIME_WAIT connections backing up until finally the machine stops responding. The machine isn't loaded at the time, and is having trouble making ingoing and outgoing connections. I've had several suggestions of tuning /proc/sys/net/ipv4/tcp_tw_reuse and /proc/sys/net/ipv4/tcp_tw_reuse but they mention bad interactions with load balancers and NAT both of which are used in my situation.

  Read the article

• Streamline Active Directory account creation via automated web site

  - by SteveM82

  In my company we have high employee turnover, and hence our helpdesk receives about a dozen requests per week for new Active Directory accounts. Currently, we receive these requests simply via e-mail or voice-mail, and rarely do we have all of the information necessary to create the account. I would like to find a web application that can be used by a manager or supervisor to formalize the requests they make for AD accounts for new employees under their command. Ideally, the application would prompt for all of necessary information, and allow the helpdesk to review the requests and approve or deny each one. If approved, the application would take care of creating the account and send an e-mail to the manager. I have found several application on the Internet that handle self-service account management (i.e., password resets or update contact info), which is also nice to have, but nothing that streamlines the new account request and creation part. Can anyone make suggestions on such an application? Thanks.

  Read the article

• Why do servers go down after a lot of traffic?

  - by mohabitar

  I'm working on an iOS app that makes extensive use of databases, where users will be able to sync their data to a server. However, I'm terrified of the event that if too many users start using the app, the servers will no longer be able to handle it. I'm not a server guy at all and am not too familiar with how that works, but my question is, why do servers get overloaded and how can that be prevented? Does it have to do with who my server host is? Or is it about the efficiency of my code? If my host is a reliable server, such as Amazon AWS, am I still at risk for server problems? Bottom line is, does it have to do with the way I implement my code, or does it have to do with who my host is?

  Read the article

• Deactivate SYN flooding mechanism

  - by mlaug

  I am running a server that is running a service on port 59380. There are more than 1000 machines out there connecting to that service. Once I need to restart the service all those machines are connecting at the same time. That made some trouble as I have seen that log entry in kern.log TCP: Possible SYN flooding on port 59380. *Sending cookies*. Check SNMP counters. So I changed sysctl net.ipv4.tcp_syncookies to 0 because the endpoints to not handle tcp syn cookies correctly. Finally I restarted my network to get the changes in production Next time I had to restart the service, the following message was logged TCP: Possible SYN flooding on port 59380. *Dropping request*. Check SNMP counters. How can I prevent the system for doing such actions? All necessary counter measures are done by iptables...

  Read the article

• trigger script on postfix delivery errors

  - by edovino

  I'm trying to get postfix to run a script on soft (4xx) and hard (5xx) delivery errors, but I'm not sure where to start. If I understand things correctly, I could insert (pipe-based) filters in the master.cf file, there's a whole 'milter' infrastructure available, an finally I suppose I could simply grep through the mail.info logs. So - any advice? Should I go the 'handle it via master.cf' route, and if so, what daemon should I intercept? 'bounce'? The grep-the-logs route is probably simplest, but I can't help but feel that there is a better way. Any advice appreciated!

  Read the article

• Double try_files to solve the nginx's "No input file specified" issue

  - by Howard

  I am following the nginx's wiki (http://wiki.nginx.org/WordPress) to setup my wordpress location / { try_files $uri $uri/ /index.php?$args; } By using the above lines, when a static file which is not found it will redirect to index.php of wordpress, that is okay but.. Problem: When I request an non-existence php script, e.g. http://www.example.com/foo.php, nginx will give me No input file specified I want nginx to return 404 instead of the above message, so in the main fcgi config, I add the 2nd try_files location ~ \.php$ { try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; include /etc/nginx/fastcgi_params; ... } And this worked, but I am looking if there are any better way to handle it?

  Read the article

• What software works well for viewing massive TIFF images on Windows 7?

  - by nhinkle

  Today I saw an article about a half-gig, 24000 square-pixel high-res composite image of the moon. (This is a much smaller version of the image) I find astronomy interesting, so I thought I'd download it and take a look. With 4GB of RAM and an i5 processor, I figured my computer could handle it. Unfortunately, the built-in Windows Picture Viewer didn't do such a great job. While it opened the file without a problem, zooming in was ineffective. The zoomed out image loaded, but zooming in just showed a scaled-up version of the zoomed-out version, not any detail: Closing the picture viewer also took a very long time, and the whole process used up much more RAM than the 500MB of the picture (usage went from 1.3GB to 3.8GB). What other software would work better for this? I would prefer something that is free and fairly simple. I don't really want to use an editor (like photoshop or GIMP), just a nice lightweight viewer. Any suggestions?

  Read the article

• how to create a simple radio station [on hold]

  - by John

  I've been digging around for ages but not getting very far so any links or tips would be massively appreciated. I want to create a central "radio station" in my home to stream one playlist to any computers pointing their browser to the ip within my internal network. I have an old mini slave mac mini running ubuntu and was originally thinking I could get php and apache to handle this but then quickly realised that of course, php will serve out streaming independently per connection ie no radio station. Are there any servers already built for this sort of behaviour? is shoutcast one of the only versions Thanks, John

  Read the article

• Would NetBSD be a good choice for a web server?

  - by Alexander

  I've the choice of crafting a NetBSD image for a Xen VPS host, and was just wanting to play around as I like BSD and wished to use it for my general web hosting. I will be hosting a low-mid traffic website and maybe a few other simple services. Do you think NetBSD would be a sufficient choice, in terms of general performance of multiple system users and fair amount of traffic to Apache compared to what Linux could normally handle? I am concerned if I do start to really like it and keep it, I may be limiting myself if I am to move further with my web host and get more traffic (and maybe a lot of FTP access and user shell accounts) Ken

  Read the article

• Cisco ASA - NAT'ing VPN traffic

  - by DrStalker

  I have an IPsec VPN setup like this: [Remote users]-[Remote ASA] <-VPN-> [My ASA]-[Subnet A]-[Router 2]-[Subnet B] The VPN is set to handle traffic between [remote users] and [Subnet A]; it does not include [Subnet B]. Pretend the firewall rules for all routers are to permit everything. Now I want to redirect traffic that comes over the VPN to a specific IP on [subnet A] (192.168.1.102) to an IP on [Subnet B] (10.1.1.133) If I add a rule on [My ASA] to NAT traffic to original IP 192.168.1.102 to new IP 10.1.1.133, 1) Will this affect the connections coming in over the VPN? (ie: the VPN packets are unencrypted and then NAT is applied) 2) Will this work when the post-NAT target is on Subnet-B, which is not part of the VPN traffic selection?

  Read the article

• Using a AWS EC2 Server to host a busy website and I need to set up a loadbalancing

  - by Philip Isaacs

  My company has one EC2 server running on AWS with a MYSQL-DB and Apache on the same instance. This one instance hosts a website built on PHP Zend Framework. The site runs like crap when it starts to get busy with a lot of traffic so I'm looking for some advice on how to set up something that can handle the load better. My first question is should I move the mysql DB on to a separate EC2 instance or perhaps use AWS's RDS service which looks like a nice option. I'm sort of new to some of this but I'm guessing I'll need at least two EC2 instances for serving the website from and some sort of load balancing mechanism to distribute traffic. But maybe not, I'm not sure. Also what are some best practices for how to replicate the data so that they stay in sync on both instances? Okay I know these are a lot of questions. But I don't know where to start so any advice will help.

  Read the article

• Drivers and Codec Compilations

  - by Pennf0lio

  Hi, Do you know any software or compilations that you recommend to handle drivers and codecs for newly formated computer? I am having problem gathering drivers and codecs when I format my computer or other's computer because we frequently misplace it's original drivers. I need an offline solution that doesn't need internet. Same for as the codec, when formating computer we frequently lost our codecs, are there codec packs you know that you would like to recommend? P.s. I had tried driver bot but it's only good when your online, I'm looking for a complete package that has all the driver to most common hardware (eg. Monitor, Sound, etc). Thanks!

  Read the article

• How to sort a file with string lines by the number of a specific symbol in the line?

  - by SpacyRicochet

  Say I have a large plaintext file with a string on every line. The string only consists of alphabetical characters, except for underscores _, which divide the strings in syllables. I want to sort the text file by the amount underscores in the string. Bonus points for putting every group of X underscores in their own file. Example: hel_lo hi su_per_u_ser o_ver_flow would sort into: hi hel_lo o_ver_flow su_per_u_ser I've tried doing this with regex, but I've yet to find a proper way of counting the underscores (regex confuses me thoroughly). Anyone know how I could handle this?

  Read the article

• backup sql databases, folders; 7ZIP and copy to ftp

  - by laurens

  Hi all, We are quite stuck with which solution to choose for this backup issue: What should happen: First, there should be an interface were to choose several sql databases (sort of checkboxes or whatsoever), also a few folders should be backed up - this could be part of the program or could be seperate, I think about an interface were to select folders, but a txt file (or xml) with paths-to-folders is as good. Next, everything should be 7Zipped, SQL-DB and files seperate. Eventually everything should be copied to a local network drive after which copied via FTP. Also important; it could be programmed or (partly) bought but I can't be one of those expensive backup tools $1000+ etc. I already found this fairly priced tool that does already most of the tasks 7ZIP and copy to ftp sqlbackupandftp.com For your information: we had a kind of self-made tool created by a collegue (some time ago) but it became very untrustworthy and as the databases grew it couldn't handle it anymore... moving on Please come up with suggestions. Thanks in advance!

  Read the article

• WordPress and EverNote integration, any existing solutions?

  - by JXITC

  Actually the tag and category system in WordPress and EverNote are very similar, almost exactly the same. We can create a notebook/notebook group in EverNote, its counterpart in Wordpress is Category/Sub Category We can mutiple tag any note in EverNote, similarly we can tag any post in Wordpress as well! Since the two are so similar to each other in categorizing the article, I am wondering whether there is a existing solution to automatically convert between the two. Like one click to post my EverNote note to WordPress under the same category and same tag. Or pull down my WordPress article to my EverNote account under the same category and same tag. Preferably it can also handle image\video uploading issues as well. :) I saw a similar questions asked years ago: Posting from evernote to wordpress So I was wondering is there any new update for this idea right now?

  Read the article

• Disable passwd history feature with remember=0

  - by user1915177

  PAM version - pam-0.79 Is setting 0 allowed on "remember" option in /etc/pam.d/common-passwd file of pam.d module to disable passwd history feature? With "remember=0" in /etc/pam.d/common-passwd file, I am observing a memfault when running the passwd command as a USER. When browsed the source, the function in _set_ctrl in support.c file of pam_unix module handles wrong values of remember, but currently its not robust enough to handle 0, which is a wrong value. So the valid and only option to disable history feature, is to not include the "remember" option in /etc/pam.d/common-passwd file and not to set-up /etc/security/opasswd file? Could see in the following link mention of setting "remember" to 0 has no effect to remember value in "/etc/security/opasswd" file. =https://lists.fedorahosted.org/pipermail/linux-pam-commits/2011-June/000060.html

  Read the article

• How to decide the optimal number of ruby thin/mongrel instances for a server, number of cores?

  - by Amala

  We are trying to deploy mongrel instances on a machine. What is the optimal number of mongrel instances for a server? Since an instance can handle concurrent connections, I do not see any benefit in starting more than 1 per core. Any more than that and the threads will just fight for CPU. Our predecessors have assigned 10 instances for 4 cores, but I think it will just cause CPU contention. Any definitive answers / opinions? I have seen this question: How many mongrel instances? But it is really not specific enough.

  Read the article

< Previous Page | 211 212 213 214 215 216 217 218 219 220 221 222  | Next Page >