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  • NFS denies mount, even though the client is listed in exports

    - by ajdecon
    We have a couple of servers (part of an HPC cluster) in which we're currently seeing some NFS behavior which is not making sense to me. node1 exports its /lscratch directory via NFS to node2, mounted at /scratch/node1. node2 also exports its own lscratch, which is correspondingly mounted at /scratch/node2 on node1. Unfortunately, whenever I attempt to mount either NFS export on the opposite node, I get the following error: mount: node1:/lscratch failed, reason given by server: Permission denied This despite the fact that I have included first the IP range (10.6.0.0) and then the specific IPs (10.6.7.1, 10.6.7.2) in /etc/exports. Any suggestions? Edit to remove ambiguity: I've made sure that exports only contains either the range, or the specific IPs, not both at the same time.

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  • Why not all users can log in to a network computer by using <network computer name>/<user name> form

    - by Haris
    There is a file server in my office that is not connected to my office LAN. In this server there are folders that are shared. This server is connected to a switch and a wireless router. Everyone who wants to access this server uses wireless network connection. They log in to this server by providing user name and password registered to the server. Some people can log in to my office file server by providing user name in (the server name)/(user name) format, while other must use (the server IP address)/(user name) format. Why is it like this? I need everyone can access the file server by providing user name in (the server name)/(user name) format. I have tried to change the %SystemRoot%\system32\drivers\etc\hosts file, as some suggested, but it won't work. Any other suggestion?

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  • VPN using Zywall

    - by Rune FS
    I've played around with a certificate based VPN (normally I don't do hardware) we've manged to setup the connection and the tunnel between the routers is working correctly. We now need the last step. There's no connection to the computers on the other end. What could we have forgotten? (we're testing with two standard configured Win7 machines) EDIT: Just to clarify the tunnel is working I can ping the router on the other end. I can't access the computers on the other side of that router and vice versa. (It's also possible to access the remotemangement console of the remote router on the LAN IP)

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  • apache2 default namevirtualhost

    - by Zulakis
    I got a site server.com which I want to be returned when it is directly adressed using server.com or www.server.com but issue a 404 if the webserver gets accessed using its ip or another hostname. I got something like the following: NameVirtualhost 10.0.0.1:80 <VirtualHost 10.0.0.1:80> #This should be used if Host is server.com or www.server.com ServerName server.com ServerAlias server.com www.server.com DocumentRoot /var/www/ </VirtualHost> <VirtualHost 10.0.0.1:80> #This should be used alternatively RewriteEngine On RewriteRule (.*) - [R=404] </VirtualHost> How can I now set that the second entry should be used if hostname is not server.com or www.server.com?

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  • Cisco router for educational purposes

    - by user39214
    Hey all. I want to buy a Cisco router to use on my home network. I'm just hoping to get a unit that is not too old and is not a SOHO model. I want to run the latest Cisco OS just to learn how Cisco does things. I would use it to divide my network into two or three IP networks, firewalling, etc. I'm just asking for a model name/number. Thanks.

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  • Accessing my Rails webrick behind proxy?

    - by Eki Eqbal
    In my mackbook, when I try to connect to my rails application in office I can't , in the office there are some http proxy , and when I run my rails like this : sudo rails s -p8080 => Booting WEBrick => Rails 3.0.5 application starting in development on http://0.0.0.0:8080 => Call with -d to detach => Ctrl-C to shutdown server [2012-03-20 12:49:34] INFO WEBrick 1.3.1 [2012-03-20 12:49:34] INFO ruby 1.8.7 (2010-01-10) [universal-darwin11.0] [2012-03-20 12:49:34] INFO WEBrick::HTTPServer#start: pid=17439 port=8080 The local IP is : en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether f8:1e:df:d8:8c:25 inet6 fe80::fa1e:dfff:fed8:8c25%en1 prefixlen 64 scopeid 0x5 inet 10.21.21.240 netmask 0xffffff00 broadcast 10.21.21.255 media: autoselect status: active so when I try in the browser to trigger localhost:8080 or 10.21.21.240:8080 , it seems that I can't trigger my application as for the proxy check out the following : Any Ideas ?

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  • Apache can't connect to LDAP server

    - by jldugger
    I'm tying SVN to LDAPS by way of Apache. I've run openssl s_client --host $host --port 636 and received an SSL certificate, so it doesn't appear to be a firewall problem. I get the following warning: [Fri Apr 02 07:38:15 2010] [warn] [client <ip withheld>] [590] auth_ldap authenticate: user jldugger authentication failed; URI /internal-svn [LDAP: ldap_simple_bind_s() failed][Can't contact LDAP server] "Can't contact LDAP server" is somewhere between vague and wrong. I'm at a loss on how to continue debugging this. Ideas?

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  • Why am I unable to turn off recursion in ISC BIND?

    - by nbolton
    Here's my named.conf.options file: options { directory "/var/cache/bind"; dnssec-enable yes; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; # disable recursion recursion no; }; I've tried adding allow-recursion { "none"; } before recursion but this also has no effect; I'm testing it by using nslookup on Windows, and using google.com. as the query (and it returns an IP, so I assume recursion is on). This issue occurs on two servers with similar setups.

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  • Does sending e-mail in the name of customers increase the risk of being marked as spammer?

    - by Adrian Grigore
    Hi, We are developing a SaaS website application that lets users send invoices to their clients. Ideally, these e-mails should appear to be originating from our customers, so the sender e-mail address domain will not match the reverse IP entry for our server. In effect we would be forging their e-mail address, but of course with their consent. Will that result in a higher probability of being marked as a spammer / their e-mails being marked as spam? If yes, how bad is the penalty? And what about people who have an e-mail address originating form an SPF-enabled domain? I guess it should be the majority of the big e-mail providers.

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  • OSX Server 3, Mac clients binding to OD and Profile Manager failing

    - by dbf
    I've made a setup containing a Mac Mini with OSX Server 3 (Mavericks 10.9.2) using Open Directory and Profile Manager (Mail, etc all set up and working). Now the thing is, internally on the local network, everything works great. Clients can bind to the OD and the users are able to login. I can install trust and settings profiles (either custom or group profiles) and all services in the profiles mentioned are being configured correctly. I can log in and out, hump around and do it a 100 times on different macs with different users, it works. My goal is to make this service publicly. The domain is with a FQDN which I own, for simplicity let's say server.domain.com. Now the only way for me to bind the clients to the OD is using LDAP mapping RCF2307 (without SSL) and a DN suffix of dc=server,dc=domain,dc=com using the Directory Utility. The options from server, or open directory will throw several errors like Connection failed to node '/LDAPv3/server.domain.com (2100). First of all I don't really understand the problem why clients can't bind to the OD like it does locally, with and without SSL (all ports are open, literally all ports are open, not just 389,636 and 1640, wasn't sure if I was missing any). When the clients are using LDAP mapping RFC2307 to bind (without SSL only), clients are able to authenticate, login and even load the Trust profile. But every Settings profile will fail with a Debug Message: Unable to find GUID in user record OD or fail to install saying missing user identification. Is there any way to get this to work without RFC2307? Because there is quite some stuff missing when using RFC2307 and not pull the mapping from the server or use open directory. Is this setup even possible? Or should I use VPN to authenticate with the OD? The network setup is a Modem/Router (DHCP off) with WAN NATted to an Airport Extreme (Using DHCP+NAT). The AE does notify with a double NAT message but I haven't had any problems with it on any other service. So WAN - 192.168.2.220 (static), AE - 10.0.1.* (dhcp) Output of DIG from the outside using dig server.domain.com ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;server.domain.com. IN A ;; ANSWER SECTION: server.domain.com. 77 IN A 91.50.*.* (valid WAN IP) ;; SERVER 172.*.*.1#53(172.*.*.1) (iPhone) DIG locally from a client and server (same output) ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0 ;; QUESTION SECTION: ;server.domain.com. IN A ;; ANSWER SECTION: server.domain.com. 10800 IN A 10.0.1.11 ;; AUTHORITY SECTION: server.domain.com. 10800 IN NS domain.com. (used for email send in relay) server.domain.com. 10800 IN NS server.domain.com. ;; SERVER 10.0.1.11#53(10.0.1.11) Are there any things I should check? Only have OSX. -- double NAT issue, plugged in the server directly on the Modem/Router with a static IP and issue remains. Guess that rules out the double NAT thing. -- changeip -checkhostname comes with There is nothing to change, e.g. success. Primary address = 10.0.1.11 Current HostName = server.domain.com DNS HostName = server.domain.com For now, I've made a workaround by using an admin account that forces a permanent VPN connection on boot. That means before it comes to the login, a connection is already made or underway. I will continue this post when I have more time, also locating all the necessary .log files of each application involved. I have some suspicions but have to debug a bit more when I have more time on my hands .. Unless, of course, I get sidetracked with having a life. Which is arguably not very likely. krypted.com

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  • Adsense-type services without the content check?

    - by Ryan Ahearn
    Are there any ad-placing services that don't mind that the page is nothing but a page of ads? Someone else with a .cn tld is pointing to my IP address. I currently have that site on its own name based virtual host that responds to every request with a 403, but I figure if I am paying for the incoming bandwidth, I might as well try to make some money off it. I don't want to actually create any content for this site, which prevents me from using adsense. My only requirements are that it is free for me to sign up and that they don't mind the lack of content.

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  • Why are certain default application associations "locked"?

    - by H.B.
    Edit: As i now have three answers that do not answer the question: This question is not about getting the association to work again. I do not like fighting symptoms, i prefer cures. After associating my MP3 files with MPlayer using the Open with/Choose default program... dialogue i can no longer change that association using said dialogue, the Always use this [...] Checkbox is henceforth always greyed out (Control Panel > Default Programs > Associate a file type or protocol with a program does not let me change it either, it seems to just use the same dialogue anyway). That also happened for MP4s but not for MKVs for example, and if i associate my MP3s with other applications like VLC it does not get blocked. I would really like to know why that is and if i can avoid this beforehand (thankfully i know ways to fix it afterwards already). Edit: Another obervation: The blocking programs (i managed to block it with an association to Visual Studio as well) do not appear in the Recommended Programs of the open-with-dialogue (And the explorer said: "The current program is not recommended, but i won't let you change it, ha!"). Edit: A screenshot as requested: As you can see on the top left (if you know the icon of MPlayer), the file is currently associated with MPlayer. Edit: Ways to fix it (Note: This question is not about fixing it) Using the Default Programs Control Panel > Default Programs > Set Default Programs, select WMP, Choose defaults for this program, check .mp3 This should reassociate the files with WMP and you can create a new association in the explorer. Using the registry (As always, keep your hands off it unless you know what you are doing or if you are fine with accidentally breaking your system) HKEY_CURRENT_USER > Software > Microsoft > Windows > CurrentVersion > Explorer > FileExts > .mp3 Here you could for example clean up the open-with-list, and the current default program seems to be saved here as well in the key UserChoice, there you can change the ProgId string to another application, you can associate it with WMP by entering WMP11.AssocFile.MP3 or just pick another application right away. You may need to mess with permissions on the key though, if you cannot change the ProgId value.

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  • Multicast accross the subnets

    - by Hasan Khan
    My application sends some UDP packets on a multicast address. In our office we have 3 subnets connected via routers. Sitting in my subnet I'm able to ping the IP of the other subnet. Will multicast packets cross my subnet and reach the machines of other subnets? Or router will need some configuration? Or do I have to program a bridge for it? Please note that I do not know anything about Networking. Kindly tell me something that I can ask my network admin to do.

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  • Running dnsmasq as an authoritative DNS server

    - by Lord Loh.
    I am trying to implement a dynamic dns service for my computers. I have pointed h.lohray.com to my EC2 instance in the NS record of lohray.com and have installed dnsmasq on that system and have made sure to unblock the firewall port. For now, I have statistically added an entry on my /etc/hosts file. 129.118.19.163 i7.h.lohray.com however, i7.h.lohray.com does not resolve correctly with nslookup or dig :-( This is the only time I could have this resolved (online nslookup) - 50.19.103.190 is the IP address of the EC2 instance where dnsmasq is running. Where could I have gone wrong?

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  • PostgreSQL won't start anymore

    - by Sander Declerck
    Today, my PostgreSQL doesn't start anymore on my windows machine... I've tried to start the service in windows services and got the following error: Windows could not start the PostgreSQL Database Server 8.3 service on Local Computer. Error 1053: The service did not respond to the start or control request in a timely fashion. Then I went to the command line to manually start C:/Program Files (x86)/PostgreSQL/8.3/bin/psql.exe, and then I got this error: psql: Could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "???" and accepting TCP/IP connections on port 5432? Edit: I found this in the logs: 2011-04-22 13:13:16 CEST LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 2011-04-22 13:13:16 CEST LOG: unexpected EOF on client connection

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  • Reconnect feature in Jdownloader for BSNL broadband

    - by pragadheesh
    Hi, I recently downloaded JDownloader for downloading from RS. But clicking the Reconnect icon in toolbar gives the error, "Reconnect failed. Please try manual reconnect". :( In the reconnection settings, there is an entry for Router's IP. and the rest(User,pwd, Reconnection script) are blank. I having BSNL dataone broadband connection in Bangalore. I connect to internet just by turning on the modem and no user name and password is required. How can i allow Reconnection feature in JDownloader.? If a reconnection script is required how to write the script.? Badly in need of this. Thanks in advance.

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  • SQL Server iSCSI session issue with a NetApp SAN

    - by Matt Beckman
    We had an issue early this morning when iSCSI issues broke connectivity with a few of our databases (resulting in a SQL Server Error 21). Attempts to DBCC CheckDB did not work, and the only solution was to restart the SQL Service. Is there a known reason why an iSCSI initiator session would reset itself out of the blue? Example below from the NetApp syslog. This set of errors was replicated 4 times (once for each SQL server in production). Only one SQL server was noticeably impacted, however. [san1: iscsi.notice:notice]: ISCSI: iswta, ISID Rule: new connection from same initiator, shutting down old session 7 [san1: iscsi.notice:notice]: ISCSI: iswta, New session from initiator iqn.1991-05.com.microsoft:sql1.example.corp at IP addr 10.xxx.xxx.123

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  • router w/ WOL out-of-the-box, or is known to work with open firmware

    - by Jaroslav Záruba
    I'm looking for a new WiFi router, and one key feature for me is WOL. Seems like many routers won't do this w/ factory firmware. Given my last router (Asus WL-520g) turned into a disco-brick couple hours after flashed to dd-wrt I'd prefer if the new one supported WOL out-of-the-box. other required features would be: dyndns service support port forwarding sometimes it is called "virtual server" I guess NAT loopback so I can access services running in my own network using dyndns hostname or public IP w/o getting too old (for example DIR-615 with factory firmware lets you wait literally minutes) did I mention WiFi? preferably w/ some range extending technology, if such stuff works at all

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  • Nginx proxy cache (proxy_pass $request_uri;)

    - by imastar
    I need to create proxy web using nginx. If I access http://myweb.com/http://www.target.com/ the proxy_pass should be http://www.target.com/ Here is my configuration: location / { proxy_pass $request_uri; proxy_cache_methods GET; proxy_set_header Referer "$request_uri"; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_ignore_headers Cache-Control; proxy_hide_header Pragma; proxy_hide_header Set-Cookie; proxy_set_header Cache-Control Public; proxy_cache cache; proxy_cache_valid 200 10h; proxy_cache_valid 301 302 1h; proxy_cache_valid any 1h; } Here is the log error 2013/02/05 12:58:51 [error] 2118#0: *8 invalid URL prefix in "/http://www.target.com/", client: 108.59.8.83, server: myweb.com, request: "HEAD /http://www.target.com/ HTTP/1.1", host: "myweb.com"

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  • Remote logging for multiple Apache virtual hosts using syslog-ng

    - by James
    I'm running a couple Apache web servers that each have 4-8 separate virtual hosts on each of them. I'm trying to setup a dedicated log server that stores each virtual host access and errors logs in a separate directory for that virtual host. For example on the logging server, /var/log/remove/10.0.0.2/virtualhost1 contains access_log and error_log /var/log/remove/10.0.0.2/virtualhost2 contains access_log and error_log /var/log/remove/10.0.0.3/virtualhost3 contains access_log and error_log and so on... Right now I have it split up by host but I can't figure out how to do it additionally by virtual host. Here are the relevant lines from the logging server's syslog-ng.conf source r_src { tcp(ip("0.0.0.0") port(5140)); }; destination r_all { file("/opt/splunk/logs/$HOST"); }; log { source(r_src); destination(r_all); }; Any help would be appreciated. Thanks!

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  • routing wiredness - traceroute 'vanishes' en route

    - by The Journeyman geek
    I'm attempting to set up one of my boxes as a server (again), but i'm having some odd connection issues- the box itself connects fine to the internet, but trying to connect to my external ip address seems to result in the trace getting 'lost' partway. http://pastebin.com/HCQAGbvn - this is a traceroute from another system that's connected to another ISP - starhub is my own one, while i have another system that i have access to on singtel. I'm wondering if my ISP is messing around with routing, or is something very odd going on. As you note, the traceroute dosen't reach me, but if it helps, i use a dd-wrt router.

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  • How do we keep Active Directory resilient across multiple sites?

    - by Alistair Bell
    I handle much of the IT for a company of around 100 people, spread across about five sites worldwide. We're using Active Directory for authentication, mostly served to Linux (CentOS 5) systems via LDAP. We've been suffering through a spate of events where the IP tunnel between the two major sites goes down and the secondary domain controller at one site can't contact the primary domain controller at the other. It seems that the secondary domain controller starts denying user authentication within minutes of losing connectivity to the primary. How do we make the secondary domain controller more resilient to downtime? Is there a way for it to cache the entire directory and/or at least keep enough information locally to survive a multi-hour disconnection? (We're all in a single organizational unit if that makes any difference.) (The servers here are Windows Server 2003; don't assume that we set this up correctly. I'm a software engineer, not an IT specialist.)

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  • VLC Media Server

    - by Josh
    We are using VLC on ubuntu, and trying to set up a streaming media server. We have the http interface working fine from remote computers, and we can also see the video playing as text if we don't screen VLC. Our problem is the output streaming. When we use the main VLC page you get when you goto the servers IP it does not save the output MRL (refreshing page it will go away, even after clicking save.) We tried to VLM page and it appears to work fine from the http page (it buffers, plays, timers go up when not paused, etc.) However, we still cannot connect remotely with a VLC client. The output parameters do save properly on the VLM page. We are noobs when it comes to this. Does anyone have a very to the point procedure of getting a file X to play and stream on ubuntu using VLC assuming VLC is installed?

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  • Simple, manageable DNS on EC2?

    - by dkulchenko
    I'm working on a large network of servers sitting on EC2, and need a way for the servers to know about each other's locations in the cloud. I thought the simplest way would be to use DNS, because if I replace the EC2 instance, I simply update the DNS record, and the rest of the servers will know about it (with names like users.db.mysoft.com, routing.mysoft.com, cluster1.memcached.mysoft.com). I'm considering setting up a master DNS server on a micro/small instance to accommodate this. I'd preferably need something that's as simple as a key-value store (hostname - IP) into which the platform could remotely add/remove entries. Can I do this with BIND? Or is there a better solution?

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  • AFXR problem using gradwell secondary DNS

    - by Roaders
    Hi All I use Gradwell.com to provide secondary DNS but I keep getting e-mails along the lines of the following saying that it's not working: You have asked us to provide a secondary DNS service for the following domain(s) Unfortunately, the primary DNS server(s) you specified are not permitting the necessary zone transfers from our servers, or they are not answering "SOA" queries for your domain correctly. I have gone through the support procedure and they weren't that helpful. They have suggested the following: Our secondline team have suggested setting the AXFR to use anouther machine. This will ensure that the transfer is not locked down to one machine and should allow any machine to make the request I don't really know what AFXR is and I only have 1 production machine so I can't set the AFXR to use another one! In previous support correspondence we confirmed that I am allowing transfers to the correct IP and that I have the correct ports open on the firewall. I am running Windows Server 2003. What can I do to try and get these zone transfers working? Thanks

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