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  • Removing resource limits on Solaris 10

    - by mikeydonkey
    How should one remove all potential artificial resource limitations for a process? I just saw a case where a server application consumed resources so that some limitation was hit. The other shells into the same server etc were all extremely slow (waiting for something to free up for them; ie. prstat starting 5 minutes). It wasn't CPU/memory related problem so I think it has got something to do with ulimits / projects. Already managed to set the maximum open files to 500 000 and it helped a little bit. However there is something else and I can not figure out what resource is maxed out. I can get some in-house administrator probably to check this but I would like to understand how I could make sure there shouldn't be any limitations! If you think I am going the wrong way (would be better to figure out what limitation should be specfically tuned etc) please feel free to point me to the correct way. I know technical stuff - it's just Solaris 10 that is giving me headache :/

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  • How to determine the Kerberos realm from an LDAP directory?

    - by tstm
    I have two Kerberos realms I can authenticate against. One of them I can control, and the other one is external from my point of view. I also have an internal user database in LDAP. Let's say the realms are INTERNAL.COM and EXTERNAL.COM. In ldap I have user entries like this: 1054 uid=testuser,ou=People,dc=tml,dc=hut,dc=fi shadowFlag: 0 shadowMin: -1 loginShell: /bin/bash shadowInactive: -1 displayName: User Test objectClass: top objectClass: account objectClass: posixAccount objectClass: shadowAccount objectClass: person objectClass: organizationalPerson objectClass: inetOrgPerson uidNumber: 1059 shadowWarning: 14 uid: testuser shadowMax: 99999 gidNumber: 1024 gecos: User Test sn: Test homeDirectory: /home/testuser mail: [email protected] givenName: User shadowLastChange: 15504 shadowExpire: 15522 cn: User.Test userPassword: {SASL}[email protected] What I would like to do, somehow, is to specify per-user basis to which authentication server / realm the user is authenticated against. Configuring kerberos to handle multiple realms is easy. But how to I configure other instances, like PAM, to handle the fact that some users are from INTERNAL.COM and some from EXTERNAL.COM? There needs to be an LDAP lookup of some kind where the realm and the authentication name is fetched from, and then the actual authentication itself. Is there a standardized way to add this information to LDAP, or look it up? Are there some other workarounds for a multi-realm user base? I might be ok with a single realm solution, too, as long as I can specify the user name - realm -combination for the user separately.

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  • Using WebDAV for automated downloads

    - by Geo Ego
    I currently manage a number of sites (at one point about a dozen, currently four, but soon growing into the dozens or hundreds) that serve a piece of software to clients at their remote locations. Our web server is Windows SBS Server 2k3, and the remote servers are Windows Server 2k3.When we have new versions of the software, I upload this new software to a specific directory and rename it; each time the clients boot, they pull their software from that specific directory. With just a few sites, it's no problem for me to RDP in and copy the files over. As the number grows, this will quickly become quite unwieldy. So I'm thinking that WebDAV would be part of a solution, so that I could simply push the newest version to our server (Windows SBS Server 2003) and make it available to the sites to grab. However, on the remote server side, what are some suggestions for automating the download? I only want the servers to download the files during downtime (between 3 AM and 9 AM), and I only want them to download if there is a new version available. I had thought of writing a program that checked the files on the WebDAV server at a regular interval, compared a hash of the current software to a hash of the software on the server, and only downloaded if they were different, but I'm wondering if there is something I am unaware of that can automate the process.

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  • unattended-upgrades does not reboot

    - by Cheiron
    I am running Debian 7 stable with unattended-upgrades (every morning at 6 AM) to make sure I am always fully updated. I have the following config: $ cat /etc/apt/apt.conf.d/50unattended-upgrades // Automatically upgrade packages from these origin patterns Unattended-Upgrade::Origins-Pattern { // Archive or Suite based matching: // Note that this will silently match a different release after // migration to the specified archive (e.g. testing becomes the // new stable). "o=Debian,a=stable"; "o=Debian,a=stable-updates"; // "o=Debian,a=proposed-updates"; "origin=Debian,archive=stable,label=Debian-Security"; }; // List of packages to not update Unattended-Upgrade::Package-Blacklist { // "vim"; // "libc6"; // "libc6-dev"; // "libc6-i686"; }; // This option allows you to control if on a unclean dpkg exit // unattended-upgrades will automatically run // dpkg --force-confold --configure -a // The default is true, to ensure updates keep getting installed //Unattended-Upgrade::AutoFixInterruptedDpkg "false"; // Split the upgrade into the smallest possible chunks so that // they can be interrupted with SIGUSR1. This makes the upgrade // a bit slower but it has the benefit that shutdown while a upgrade // is running is possible (with a small delay) //Unattended-Upgrade::MinimalSteps "true"; // Install all unattended-upgrades when the machine is shuting down // instead of doing it in the background while the machine is running // This will (obviously) make shutdown slower //Unattended-Upgrade::InstallOnShutdown "true"; // Send email to this address for problems or packages upgrades // If empty or unset then no email is sent, make sure that you // have a working mail setup on your system. A package that provides // 'mailx' must be installed. E.g. "[email protected]" Unattended-Upgrade::Mail "root"; // Set this value to "true" to get emails only on errors. Default // is to always send a mail if Unattended-Upgrade::Mail is set Unattended-Upgrade::MailOnlyOnError "true"; // Do automatic removal of new unused dependencies after the upgrade // (equivalent to apt-get autoremove) //Unattended-Upgrade::Remove-Unused-Dependencies "false"; // Automatically reboot *WITHOUT CONFIRMATION* if a // the file /var/run/reboot-required is found after the upgrade Unattended-Upgrade::Automatic-Reboot "true"; // Use apt bandwidth limit feature, this example limits the download // speed to 70kb/sec //Acquire::http::Dl-Limit "70"; As you can see Automatic-Reboot is true and thus the server should automaticly reboot. Last time I checked the server was online for over 100 days, which means that the update from Debian 7.1 to Debian 7.2 has happened while the server was up (and indeed, all updates were installed), but this involves kernel updates, which means that the server should reboot. It did not. The server was running very slow, so I rebooted which fixed that. I did some research and found out that unattended-upgrades responds to the reboot-required file in /var/run/. I touched this file and waited one week, the file still exists and the server did not reboot. So I think that unattended-uppgrades ignores the auto-reboot part. So, am I doing somthing wrong here? Why did the server not restart? The upgrade part works perfect by the way, its just the reboot part that does not seem to work as it should.

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  • WebHost Manager - Apache's VHost isn't matching the DNS entry

    - by Trans
    I've used CPanel's WebHost Manager to create a new host on my VPS. I then used my HOSTS file to point fake.com to the relevant IP address. The problem I'm having now is, Apache isn't recognizing the VHost,or something, as it's just loading the default entry and 404'ing every document I try to GET. Here's the VHost entry NameVirtualHost 0.0.0.209:80 NameVirtualHost 0.0.0.211:80 <VirtualHost 0.0.0.209:80> ServerName fake.com ServerAlias www.fake.com DocumentRoot /home/fakecom/public_html ServerAdmin [email protected] ## User fakecom # Needed for Cpanel::ApacheConf <IfModule mod_suphp.c> suPHP_UserGroup fakecom fakecom </IfModule> <IfModule !mod_disable_suexec.c> SuexecUserGroup fakecom fakecom </IfModule> CustomLog /usr/local/apache/domlogs/fake.com-bytes_log "%{%s}t %I .\n%{%s}t %O ." CustomLog /usr/local/apache/domlogs/fake.com combined Options -ExecCGI -Includes RemoveHandler cgi-script .cgi .pl .plx .ppl .perl ScriptAlias /cgi-bin/ /home/fakecom/public_html/cgi-bin/ </VirtualHost> I've Google'd this profusely and all that's being returned is 'DNS errors. Wait for it to propagate'. That's obviously not my problem, since I'm using HOSTS. What else could be causing this? :/ EDIT: Forgot to mention. http://fake.com/~fakecom/test.html loads just fine. So the fake.com is pointing to the right IP.

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  • Samsung laptop randomly shuts down

    - by Dmatig
    I've rewritten this question because it turned into an indecipherable mess. I have a Samsung R560 laptop that is overheating, and shutting itself down under load consistantly. Thank you quickcel for reccomending me Speedfan to monitor my temps. Here they are (Load / Idle): (Ignore "Temp1 and Temp2", whatever sensors they are they'd always random, pretty sure they're broke). The load temperature is after just 5 minites of playing Fallout 3 - another 5 minutes and it (the GPU - 9600M GS) consistantly breaches the mid 90's then shuts down, so it's hard to get a good picture of it. I'm looking for some solution or way to decrease these temperatures, because they seem far too high even idle. I've tried: Opening up the case and clearing of all dust with compressed air. Updating drivers for my Graphics card Have purchased and am using a notebook cooler I don't want to: Undervolt / underclock (defeats the point of having a more expensive card) Use lower power / performance settings (again, i might as well have bought something cheaper) Is there anything else i can try (software or inexpensive hardware) that can help me fix this? Has anybody had a Samsung laptop and knows if this can be sorted under my warranty, and the turnaround time of sending it off (UK?)(it has always ran hotter than it should, but now at 6 months old is getting hot enough to power off)

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  • Netgear FVS336G: appropriate solution for today's small businesses?

    - by bwerks
    Hey all, I've been looking into a routers to facilitate a vpn solution for a small business. While the Netgear FVS336G looks good on paper, it appears to have some fairly crippling setbacks that drag down what appears to be some great hardware. First off, the unit has been around for a couple years now, perhaps before 64-bit operating systems were as common as they are now, and complaints are everywhere that claim that SSL or IPsec (or both) VPN connections will not work with 64-bit operating systems. However, most of these claims mention only Vista, which makes me think that these problems could have potentially been solved since then. Unfortunately though, Netgear's support forums seem to be incredibly private, and policed by some troll named jmizuguchi who just closes down public posts in order to marshal them into the private ones. Danger, will robinson. Apparently their firmware upgrade process is a nightmare too, but that's beside the point. My question is this: has anyone configured one a Netgear FVS336G to operate in a server 2008 (or R2)/windows 7 64-bit network? If so, is it possible to use the microsoft vpn client or are third party clients still required? If this thing has just failed the test of time, is there a feature-comparable unit that I've missed, at anywhere near the same price range? Thanks!

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  • Windows Domain Chaos - Any Solving Approach

    - by Chake
    we are running an old Window 2003 Server as Domain Controller (DC2003). To safely migrate to Windows 2008 R2 we added a 2008 R2 (DC2008R2) to the domain as domain controller (adprep etc.). After dcpromo on DC2008R2 everything seemed to be ok. The new DC appeared under the "Domain Controlelrs" node. It wasn't checked at this time, if DC2008R2 can REALLY act as domain controller. Later we tried to shutdown DC2003 and ran into a total mess with non functional Exchange and Team Foundation Services. After that I got the job to fix... First i thought it could be an Problem with DC2008R2. So I removed it as Domain Controller and installed a new Windows 2008 R8 Server DC2008R2-2. I ran into similar Problems. I tried a bunch of stuff, but nothign helped. I won't list it, maybe I made an mistake, so I'm willing to redo it with your suggestions. To have a starting point I tried the best practise analyser whicht ended up with 24 "Compatible" and 26 "Not Compatible" tests. From these 26 tests 19 read the same. (I'm translating from german, so that may to be the exact wording) Problem: Using the Best Practise Analyser for Active Directory Domain Services (Active Directory Domain Services Best Practices Analyzer, AD DS BPA) no data can be be gathered using the name of the forest and the domain controller DC2008R2-2. I appreciate any suggestions, this really bothers me.

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  • Which upgrade path for disk IO bound postgres server?

    - by user41679
    Hi all, We currently have a Sun x4270 with 2xquad core Xeon Nehalmen 2.93ghz cores (16 threads), 72 gig of ram and 16 x 10k SAS disks split between the os raid 1, a partition for the Write Ahead Logs which is raid 10 and a partition for the database tables and indexes which is also raid 10, all xfs. I'm currently evaluating which path to go down in terms of upgrades. We'll be sharding the DB at some point soon, but for now I need to focus on hardware upgrades specifically. The machine is not CPU or memory bound at all at the moment, just IOWait is become an issue. The machine is mostly write access as we have a heavy caching layer. We're seeing about 300 write IOPS average on both the database partitions. We don't have any additional storage infrastructure like a Fiber Channel or ISCSI network. Budget isn't too much of a concern, something inline with the size of this server (i.e no $1m IBM machines) Space is ok on the DB side of things, we're running out obviously but there's also some reduction we can do. Additional space would be good though. My current thoughts are either: * ISCSI SAN, possible with 10Gbit network that has solid state acceleration. * FusionIO card / Sun F20 card (will the FusionIO card work in the Sun box? * DAS shelf (something like this http://www.broadberry.co.uk/das-direct-attached-storage-servers/cyberstore-224s-das) which a combination of 15k sas disks and some Intel X25-E drives for DB indexes etc) what would I need to put in the x4270 to add a DAS shelf? I think it's a SAS HBA card, do I have to use Sun's own card or will any PCI Express card work? Anything else??? what would you guys do from your experience? I appreciate it's a lot of questions, but I haven't expanded a DB machine for a number of years and the landscape has changed dramatically since then! Any advice or feedback would be very much appreciated. Let me know if there's anything else I can clarify. Thanks in advance!

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  • Designing a software based load balancer

    - by Kishore pandey
    Hello to all Server fault users, I am new to this website but have constantly been using the mother website, stackover flow. Well to begin with, i would like to design a load balancer for the organization i am working for. As i am very new to this whole, idea about load balancing and networks. I am finding it very difficult to start my project. I did a lot of research on already existing load balancer and found some(HAPROXY,NGINX) that could solve my problems, but the point is, I am still in a dilemma if they could answer the following requirements of mine: The client and server in my architecture are distributed. The load balancer should take care of the firewall. LB server should balance the load among all servers present in WWW cloud. The LB server should have some sort of configuration file, with the help of which it is possible to configure the servers. Heart beat: With the help of which it would be possible to check if any server is down, if any server is down the request should be passed to some other server. Various load balancing algorithms of the incoming requests. Easy error handling. It should be fairly possible to prioritize the incoming requests. Is there any already available load balncer solution on the market that could satisfy these requirements? If not is there any base code available with the help of which i could develop my own load balncer. If not where should i start from scratch? I am practically new to everything. Any help from a load balancer expert is very much appreciated. Thanx a ton in advance. Cheers and regards. Kishore

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  • How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?

    - by JJarava
    This is what I believe to be an interesting challenge :) A relative (that leaves a bit too far to go there in person) is complaining that their WIFI/Internet network performance has gone down abysmally lately. She'd like to know if some of the neighbors are using her wifi network to access the internet but she's not too technically savvy. I know that the best way to prevent issues would be to change the Router password, but it's a bit of a PITA having to re-configure all wifi devices... and if the uninvited guest broke the password once, they can do it again... Her wifi router/internet connection is provided by the telco, and remotely managed so she can log-on to their telco account's page and remotely change the router's Wifi password, but doesn't have access to the router status page/config/etc unless she opts out of the telco's remote support and mainteinance service... So, how could she check if there are guests in the wifi with this restrictions and in the most "point and click way"? In this case I'd probably use nmap to look for other devices in the network, but I'm not sure if that's the easiest way to do it. I'm not a wifi expert, so I don't know if there are any wifi-scanning utils that can tell us who's talking to the router... Lastly, she's a Windows user as I guess that'll influence the choice of tools available Any suggestions more than welcome Regards!

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  • Enabling JMX for proxool with tomcat

    - by dialt0ne
    I am trying to get proxool's MBeans available so that I can see/manipulate them with jconsole. I have jconsole working, but I don't see anything related to proxool. The system is using Sun Java 1.5.0_17 (I know, I know... I'm working with the developers to upgrade). JMX is enabled by modifying $JAVA_OPTS in my tomcat 5.5 startup script: SJO="$SJO -Dcom.sun.management.jmxremote" SJO="$SJO -Dcom.sun.management.jmxremote.port=4998" SJO="$SJO -Dcom.sun.management.jmxremote.authenticate=false" SJO="$SJO -Dcom.sun.management.jmxremote.ssl=false" JAVA_OPTS="$JAVA_OPTS $SJO" I have proxool configured with JNDI in server.xml: <GlobalNamingResources> <Resource name="jdbc/database" auth="Container" type="javax.sql.DataSource" factory="org.logicalcobwebs.proxool.ProxoolDataSource" user="username" password="password" proxool.driver-url="jdbc:oracle:thin:@fqdn.example.com:1521:MYSID" proxool.driver-class="oracle.jdbc.driver.OracleDriver" proxool.alias="mysid" proxool.maximum-connection-count="20" proxool.statistics="20s,5m,15m" proxool.statistics-log-level="INFO" proxool.jmx="true" proxool.verbose="true" /> </GlobalNamingResources> My test .jsp can run queries and I can see it using the connections with the proxool admin servlet, but I'm unsure if there's more I need to configure in tomcat or proxool to get JMX functioning. Advice? jmxproxy info edit: The jmxproxy servlet is working - when I go to the URL http://tomcatserver.example.com:4999/manager/jmxproxy/?qry=*:type%3DRequestProcessor,* the results are: OK - Number of results: 2 Name: Catalina:type=RequestProcessor,worker=http-8080,name=HttpRequest0 modelerType: org.apache.coyote.RequestInfo bytesSent: 0 requestBytesSent: 0 contentLength: -1 bytesReceived: 0 requestProcessingTime: 1297983483666 globalProcessor: org.apache.coyote.RequestGroupInfo@32dc51c8 requestBytesReceived: 0 serverPort: -1 stage: 0 requestCount: 0 maxTime: 0 processingTime: 0 errorCount: 0 Name: Catalina:type=RequestProcessor,worker=jk-127.0.0.1-8009,name=JkRequest794 modelerType: org.apache.coyote.RequestInfo virtualHost: tomcatserver.example.com bytesSent: 0 method: GET remoteAddr: 172.30.3.51 requestBytesSent: 0 contentLength: -1 workerThreadName: TP-Processor15 bytesReceived: 0 requestProcessingTime: 9 globalProcessor: org.apache.coyote.RequestGroupInfo@1e7d3b8e protocol: HTTP/1.1 currentQueryString: qry=*%3Atype%3DRequestProcessor%2C* requestBytesReceived: 0 serverPort: 4999 stage: 3 requestCount: 0 maxTime: 0 processingTime: 0 currentUri: /manager/jmxproxy/ errorCount: 0 And more to the point http://tomcatserver.example.com:4999/manager/jmxproxy/?qry=Catalina:type%3DEnvironment,resourcetype%3DGlobal,name%3DProxool yields: OK - Number of results: 0

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  • Membership in two domains

    - by imagodei
    Hello! I would your suggestions for an effective solution for a person, who needs to access resources in two Windows domains and wants to use one computer. It's about our CEO, who has accepted a second position in another company. Accessing files and folders isn't big problem. The greatest challenge I see is that he wants to conveniently access Exchange accounts in both companies; he would like to send and receive mail in single Outlook if possible (two profiles?) There is also a challenge with calendars: he would like to have one calendar for all activities from both Exchange accounts. Creating a POP3 account for accessing second Exchange server is a last resort, because obviously there is a problem with scheduling meetings and other calendar related tasks. Forwarding and receiving all mail/tasks on primary Exchange server is inconvenient because simple replying to original sender is disabled; and also when manually changing the recepient, he will receive mail from the wrong address. We were considering Virtualisation, that is setting up an instance of virtual machine inside existing installation and then joining this virtual computer to a second domain. Then installing another MS Outlook. This would of course mean two different Outlook accounts, two different calendars, but would at least enable our CEO to access all information from a single laptop. Does anyone have any other idea? I know setting up two domains on a single computer is a no-go (without much hacking at least), but effective workarounds are appreciate. The thing I am looking here is high usage/efficiency/productivity, but also as elegant solution from the administration point of view. Thank you very much (if you managed to read this through, this is a good sign ^_^ )

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  • What are the requirements for Windows Remote Assistance over Teredo?

    - by Jens
    I try to get the Windows 7 (or Vista) remote assistance feature to work, without using UPnP on the novices computer. After enabling Teredo on the expert's computer (that is in a corporate network, and therefore has teredo disabled by default), I tried to connect to the novice both using Easy Connect and the invitation file with no success. My triubleshooting included the following (so far). A connection to the novice from my home pc was successful, hinting at a misconfiguration on the experts side. Both computers have a "qualified" connection to the Teredo Server. Both computers have a valid Teredo IP, access to the Global_ PNRP cloud and can resolve names registered with PNRP on the other computer. The expert can resolve the PNRP Id automatically generated with an Easy Connect help request Both computers can ping the other's PNRP name. Both computers can ping the other's Teredo IP Address using ping -6 Now, I am a little stumped. I expected Remote Assistance to work at this point, since my corporate firewall has no Teredo filtering. What could RA cause not to work in this setting? Thanks in advance!

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  • SMTP server closes connection unexpectedly

    - by janin
    I'm writing a python program to send emails, and when trying to send to yopmail, hotmail and some other hosts the connection gets closed by the server without a message. I tried connecting directly with netcat and the same thing happens. Here's what the exchange looks like : $ nc smtp.yopmail.com 25 220 mx.yopmail.com ESMTP *** ehlo mx.myhost.com 250 SIZE 2048000 mail FROM:<[email protected]> 250 OK rcpt TO:<[email protected]> The connection is just closed abruptly at this point. On other hosts, like my ISP's, everything goes fine. I've checked the blacklists but my IP is not listed. Any idea what's going on? Edit: My IP is not listed in any blacklist. I own myhost.com, but I don't have an SPF record. I'll add one and update this post when the record has propagated. Edit 2: with the SPF added the email is now accepted and Hotmail adds a Authentication-Results: hotmail.com; sender-id=pass header to the email. However it gets classified as spam, but I guess that's another matter. Thanks for your help.

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  • How to set up RAID-0 first time on new PC?

    - by jasondavis
    I have built basic PC's in the past but have never used a RAID array at all. SO now I am buying parts to build my new PC, it will be an intel i7 processor. My motherboard will have RAID support which I will use instead of an aftermarket raid controller for now. Also I plan to use 2 SSD drives in RAID-0 for my windows 7 OS. (Please note that I am aware of the issues with doing this, including lack of TRIM support when using RAID with SSD drives. I am OK with it not working as I can just re[place the drives in a year or so or wheneer they become more sluggish). SO here is my question part. If I assemble the motherboard, PSU, processor, RAM, vidm card, etc and then go to turn the PC on, it will have the 2 SSD drives hooked up. so I assume I will then soon the BIOS screen before I install windows? How to I go about making the 2 drives work in RAID-0 at this point? I do the raid part before installing my OS right? Please help with the steps involved from assembling the parts of the PC and then turning it on, to the part of getting the RAID-0 set up between the 2 drives and then installing my windows 7 OS from a Optical drive? Please help, all advice, instructions, tips appreciated as long as on topic. I do not need to be told that this is a bad idea as far as if 1 drive fails I losse it all, I plan on having a disk IMAGE to be able to restore my OS and software to a new set of drives at anytime needed in the event of drive failure. Same goes for lack of TRIM support. Thanks for reading and help =)

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  • Pin the Dock to the top or disable it

    - by Chris Buchholz
    I wonder if it is possible to pin the Mac OS X Dock to the top in Snow Leopard? I see lets of ideas on how to do this when I google for it, and Secrets (the tweaking app) also provide it as an option, but I don't see any of the ways working for me. I guess it must have worked at some point, since people said it did, but I believe this feature might have been removed from Snow Leopard, and therefore does not work for me. Is this so? Is there really no way to pin the Dock to the top of screen? If not, what ways of "getting rid of the dock" can you guys recommend? I have tried with auto-hiding, but my problem is that this will leave a 4px line at the edge of where the Dock is pinned to, that applications wont cover. Thats not ideal for me. As far as I have understood from googling, this line will not appear if the Dock is pinned to the top, hence my question. What other ways do you guys use to get rid of it?

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  • Does btrfs balance also defragment files?

    - by pauldoo
    When I run btrfs filesystem balance, does this implicitly defragment files? I could imagine that balance simply reallocates each file extent separately, preserving the existing fragmentation. There is an FAQ entry, 'What does "balance" do?', which is unclear on this point: btrfs filesystem balance is an operation which simply takes all of the data and metadata on the filesystem, and re-writes it in a different place on the disks, passing it through the allocator algorithm on the way. It was originally designed for multi-device filesystems, to spread data more evenly across the devices (i.e. to "balance" their usage). This is particularly useful when adding new devices to a nearly-full filesystem. Due to the way that balance works, it also has some useful side-effects: If there is a lot of allocated but unused data or metadata chunks, a balance may reclaim some of that allocated space. This is the main reason for running a balance on a single-device filesystem. On a filesystem with damaged replication (e.g. a RAID-1 FS with a dead and removed disk), it will force the FS to rebuild the missing copy of the data on one of the currently active devices, restoring the RAID-1 capability of the filesystem.

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  • Load Balancing Rails on Apache 2.x

    - by revgum
    My situation is that I need to proxy traffic to the root of my web server to port 81 for IIS, and then any traffic to a sub-directory needs to be directed to the rails app. my-server.com/ - needs to proxy to port 81 my-server.com/myapp - needs to point to the rails app This seems to be working alright for the rails application but the images, javascripts, and stylesheets are not actually working (proxied). I've tried to fiddle with the proxypass lines but it still doesn't work for me..can anyone help? Here's my complete VirtualHost portion of the config; LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_http_module modules/mod_proxy_http.so ProxyRequests off <Proxy balancer://myapp_cluster> BalancerMember http://127.0.0.1:3001 BalancerMember http://127.0.0.1:3002 </Proxy> <VirtualHost *:80> DocumentRoot "c:\ruby\apps\myapp\public" <Directory /myapp > Options FollowSymLinks AllowOverride None </Directory> ProxyPass /myapp/images ! ProxyPass /myapp/stylesheets ! ProxyPass /myapp/javascripts ! ProxyPass /myapp/ balancer://myapp_cluster/ ProxyPassReverse /myapp/ balancer://myapp_cluster/ ProxyPreserveHost on ProxyPass / http://localhost:81/ ErrorLog "c:\ruby\apps\myapp\log\error.log" # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog "c:\ruby\apps\myapp\log\access.log" combined </VirtualHost>

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  • MySQL partition "full"?

    - by gdea73
    I have a server that runs Debian 6.2, with Apache, PHP5, and MySQL. Well, I hadn't done anything with MySQL at all so far, just Apache and PHP; I must have installed it (mysql-server) at some point along the line, and I decided to login to the database for the first time a couple days ago as I was considering using the database for a future website project. I noticed that the "root" user had a password, and I didn't recall having set one. My usual root password was incorrect. So I attempted to reset the password. sudo service mysql stop (stopped successfully) sudo /usr/bin/mysqld_safe --skip-grant-tables --skip-networking & started successfully, from what I can tell. However, mysql itself returns "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld,sock' (2)", and additionally sudo service mysql start returns "/etc/init.d/mysql: ERROR: The partition with /var/lib/mysql is too full! ... failed!" df -h tells me that / is 26% used, a 20GB partition, and /home, roughly 900GB, has only 5% usage. On a potentially related note, I've been experiencing random hangs since I noticed this problem, my tty2 randomly froze several times while idle, and the entire system is suddenly unstable. gnome-terminal also does not open. (Gnome-terminal apparently works now, disregard that part, but the server is still being somewhat unstable, I randomly lost connection when I was SSHed into it from my laptop, twice now.)

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  • SQL Server Offsite Backups

    - by Eric Maibach
    We have about !TB of SQL Server databases, and these databases generate about 200GB of data changes each day. Up to this point we have been doing Weekly full backups, daily diff backups, and hourly transaction log backups. The full and diff backups are backed up to tape and taken offsite each day. We have been trying to move away from tapes, and our IT department purchased a Barracuda Backup device that backups up data and then sends it offsite using our internet connection. I have been trying to get this to work for our SQL Server backups, and have ran into a number of problems. I normally like to just use SQL Server to perform backups instead of trying to use a agent, so that is what I tried first. However the Barracuda device was not able to dedup these files very well, so it ended up being to much data to try to send offsite and to archive. I then tried installing the Barracuda agent and using it to backup the SQL Server databases. However the problem I am having there is that on some of the database servers I also have files that need backed up, and I cannot find a way to create seperate backup schedules for the file backups and the SQL Server backups. Barracuda only does full or transaction log backups. So if I want to do hourly transaction log backups I end up doing a file system backup every hour (which is not good), or if I only schedule the backups to run once a night I either have to do a full backup every night, or only do a transaction backup once a day. None of these scenarios are good options. My question is, how is everyone else getting their large SQL Server database backups offsite. Are you just using tape, or have you found a offsite backup device that works well? Is anybody else using Barracuda to backup their SQL Server databases? If you do, then how do you have it setup?

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  • Nginx rewrite for link shortener + Wordpress pretty URLs

    - by detusueno
    Okay so I installed Nginx/PHP/MySQL/Wordpress via a online walk through, and it had me enter these rewrites to enable Wordpress pretty URLs: if (-f $request_filename) { break; } if (-d $request_filename) { break; } rewrite ^(.+)$ /index.php?q=$1 last; error_page 404 = //index.php?q=$uri; This is then included in the vhost for my domain. What I'm trying to do now is add some redirection/link shortner rewrites that will play nice with the setup I have in mind. I'd like to redirect "x.com/y" to "x.com/script.php?id=y" for all external links that I post. The Wordpress link setup right now has almost all internal links begin with "news" (x.com/news/post-blah, x.com/news/category/1, etc) BUT I also have a few root links that point to some internal content (x.com/news, x.com/start). I'm guessing that's going to cause some conflicts. What's the best approach to do this? I've never worked with Nginx (or any rewrite rules) but maybe I can distinguish between "x.com/news" and "x.com/news/" to allow it to play nice? I had a friend setup a working version of this in Apache and it'd be nice if I could get this up on Nginx again.

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  • MySQL extension of PHP not working

    - by Víctor
    In a Debian server, and after intallation and removal of SquirrelMail (with some downgrade and upgrade of php5, mysql...) the MySQL extension of PHP has stopped working. I have php5-mysql installed, and when I try to connect to a database through php-cli, i connect successfully, but when I try to connect from a web served by Apache I cannot connect. This script, run by php5-cli: echo phpinfo(); $link = mysql_connect('localhost', 'user, 'password'); if (!$link) { die('Could not connect: ' . mysql_error()); } echo 'Connected successfully'; mysql_close($link); Prints the phpinfo, which includes "/etc/php5/cli/conf.d/mysql.ini", and also the MySQL section with all the configuration: SOCKET, LIBS... And then it prints "Connectes successfully". But when run by apache accessed by web browser, it displays the phpinfo, which includes "/etc/php5/apache2/conf.d/mysql.ini", but has the MySQL section missing, and the script dies printing "Fatal error: Call to undefined function mysql_connect()". Note that both "/etc/php5/cli/conf.d/mysql.ini" and "/etc/php5/apache2/conf.d/mysql.ini" are in fact the same configuration, because I have in debian the structure: /etc/php5/apache2 /etc/php5/cgi /etc/php5/cli /etc/php5/conf.d And both point at the same directory: /etc/php5/apache2/conf.d -> ../conf.d /etc/php5/cli -> ../conf.d Where /etc/php5/conf.d/mysql.ini consists of one line: extension=mysql.so So my question is: why is the MySQL extension for PHP not working if I have the configuration included just in the same way as in php-cli, which is working? Thanks a lot!

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  • Apache Reverse proxy Http to https

    - by Coppes
    I have a website which is fully running on Https. For some reason i did get the task to find a way to convert a url for example: http://www.domain.com/a/e-nc/youless to a https version of it, without losing HTTP POST header such as the POST values which are in it. So i thought (not even sure) let's try to make a reversed proxy in apache and see how that works. Anyway after a lot of struggling i came to the point to ask it here. So to be speicific my goal is: Convert the http://www.domain.com/a/e-nc/youless to https://www.domain.com/a/e-nc/youless without losing the POST conditions. What i have tried until now is the following: Created a file called: proxiedhosts in my apache2/sites-enabled folder with the following contents: SSLProxyEngine On SSLProxyCACertificateFile /etc/apache2/ssl/certificate****.pem ProxyRequests Off ProxyPreserveHost On <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass /a/e-nc/youless/ https://www.domain.com/a/e-nc/youless/ ProxyPassReverse /a/e-nc/youless/ https://www.domain.com/a/e-nc/youless/ Thanks in advance!

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  • NGINX - CORS error affecting only Firefox

    - by wiherek
    this is an issue with Nginx that affects only firefox. I have this config: http://pastebin.com/q6Yeqxv9 upstream connect { server 127.0.0.1:8080; } server { server_name admin.example.com www.admin.example.com; listen 80; return 301 https://admin.example.com$request_uri; } server { listen 80; server_name ankieta.example.com www.ankieta.example.com; add_header Access-Control-Allow-Origin $http_origin; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, PATCH, DELETE'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Headers' 'Access-Control-Request-Method,Access-Control-Request-Headers,Cache,Pragma,Authorization,Accept,Accept-Encoding,Accept-Language,Host,Referer,Content-Length,Origin,DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; return 301 https://ankieta.example.com$request_uri; } server { server_name admin.example.com; listen 443 ssl; ssl_certificate /srv/ssl/14182263.pem; ssl_certificate_key /srv/ssl/admin_i_ankieta.example.com.key; ssl_protocols SSLv3 TLSv1; ssl_ciphers ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM; location / { proxy_pass http://connect; } } server { server_name ankieta.example.com; listen 443 ssl; ssl_certificate /srv/ssl/14182263.pem; ssl_certificate_key /srv/ssl/admin_i_ankieta.example.com.key; ssl_protocols SSLv3 TLSv1; ssl_ciphers ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM; root /srv/limesurvey; index index.php; add_header 'Access-Control-Allow-Origin' $http_origin; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, PATCH, DELETE'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Headers' 'Access-Control-Request-Method,Access-Control-Request-Headers,Cache,Pragma,Authorization,Accept,Accept-Encoding,Accept-Language,Host,Referer,Content-Length,Origin,DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; client_max_body_size 4M; location / { try_files $uri $uri/ /index.php?q=$uri&$args; } location ~ /*.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; #NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini include fastcgi_params; fastcgi_param SCRIPT_FILENAME /srv/limesurvey$fastcgi_script_name; # fastcgi_param HTTPS $https; fastcgi_intercept_errors on; fastcgi_pass 127.0.0.1:9000; } location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ { expires max; log_not_found off; } } this is basically an AngularJS app and a PHP app (LimeSurvey), served under two different domains by the same webserver (Nginx). AngularJS is in fact served by ConnectJS, which is proxied to by Nginx (ConnectJS listens only on localhost). In Firefox console I get this: Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://ankieta.example.com/admin/remotecontrol. This can be fixed by moving the resource to the same domain or enabling CORS. which of course is annoying. Other browsers work fine (Chrome, IE). Any suggestions on this?

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