Search Results

Search found 2699 results on 108 pages for 'caching nameserver'.

Page 20/108 | < Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >

  • DNS NS and domain clarification

    - by thejartender
    I am really trying to get my home web server up and I don't seem to be succeeding. My web server withing my host system is running my web application and is viewable at the current isp ip 88.89.190.171 over WAN indicating that the webapp is fine and that router ports are forwarded. I have set up a DNS on this system with a single name server in the network and I manage to ping it with ping ns.thejarbar.org I have registered this private name server at my current hosting provider. My domain (thejarbar.org) is obviously registered and I have pointed it to my name server. My question here is if it is simply a matter of waiting on propagation for me to be able to ping my domain? Another way of asking this is if the fact that my name server is discoverable indicates that I have set it up correctly to be used? I have tested with dig and dig -x on my host and have A records for the name server. The server is not the Authorative server so I am concerned that this may be the reason why my site is not discoverable. Is there anything else I may need to so still? I only have one ns. currently, but should this succeed I will be purchasing a more stable secondary system to host my development applications. This is my best chance at getting work (freelance development) due to illness) and this I feel is the last step I need to succeed. Please note that this is temporarily a home server and I will most likely be using it as part of a professional setup very soon I will likely have to repeat this question therefore in a prefessional context in a few weeks as nothing will be different other than the fact that I am going to have a server running elsewhere. I am using bind9 and Ubuntu 12.10 and my records are: $TTL 3D @ IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); thejarbar.org. IN A 10.0.0.42 @ IN NS ns.thejarbar,org. yuccalaptop IN A 10.0.0.19 ns IN A 10.0.0.42 gw IN A 10.0.0.138 www IN CNAME thejarbar.org. $TTL 3D 0.0.10.in-addr.arpa. IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); 0.0.10.in-addr.arpa. IN NS ns.thejarbar.org. 42 IN PTR thejarbar.org. 19 IN PTR yuccalaptop.thejarbar.org. 138 IN PTR gw.thejarbar.org. My localhost IP is 10.0.0.42 I wish for this to be my host and name server.

    Read the article

  • DNS Problems with .me domain

    - by tchaymore
    I recently registered a .me domain through GoDaddy. I set the nameservers to my slicehost servers immediately, and that change has been reflected in the .me WHOIS since day one. However, after almost two weeks, still can't look up the site. Is there something specific to .me domains or slicehost that I'm missing?

    Read the article

  • What reasons are there to reduce the max-age of a logo to just 8 days? [closed]

    - by callum
    Most websites set max-age=31536000 (1 year) on the Cache-control headers of static assets such as logo images. Examples: YouTube Yahoo Twitter BBC But there is a notable exception: Google's logo has max-age=691200 (8 days). I've checked the headers on the Google logo in the past, and it definitely used to be 1 year. (Also, it used to be part of a sprite, and now it is a standalone logo image, but that's probably another question...) What could be valid technical reasons why they would want to reduce its cache lifetime to just 8 days? Google's homepage is one of the most carefully optimised pages in the world, so I imagine there's a good reason. Edit: Please make sure you understand these points before answering: Nobody uses short max-age lifetimes to allow modifying a static asset in future. When you modify it, you just serve it at a different URL. So no, it's nothing to do with Google doodles. Think about it: even if Google didn't understand this basic trick of HTTP, 8 days still wouldn't be appropriate, as only those users who don't have the original logo cached would see the doodle on doodle-day – and then that group of users would go on seeing the doodle for the following 8 days after Google changed it back :) Web servers do not worry about "filling up" the caches of clients (or proxies). The client manages this by itself – when it hits its own storage limit, it just starts dropping the lowest priority items to make space for new items. The priority score is based on the question "How likely am I to benefit from having cached this URL?", which is nothing to do with what max-age value the server sent when the URL was originally requested; it's a heuristic based on the "frecency" of requests for that URL. The max-age simply lets the server set a cut-off point – the time at which the client is supposed to discard the item regardless of how often it's being re-used. It would be very nice and trusting of a downstream client/proxy to rely on all origin servers "holding back" from filling up their caches, but I don't think we live in that world ;)

    Read the article

  • Proper DNS records for handling subdomains and missing subdomains

    - by Cerin
    I'm trying to craft DNS records to support: Explicitly defined subdomains, e.g. ftp.mydomain.com A missing subdomain that redirects to www. Implicitly defined subdomains, e.g. <some user entered value>.mydomain.com For 1, I'm using CNAME records. All seems to be working well. For 2, I'm using an A record, @ -> 123.456.789.012. Worked well. For 3, I ran into some trouble. I tried adding another A record, * -> 123.456.789.012. This appeared to work initially, but it broke #2. i.e. now browsing to mydomain.com doesn't redirect to www.mydomain.com. I tried adding the CNAME record @ -> 123.456.789.012, but my DNS admin tool won't accept it because it's saying the @ is already in use, even though I deleted the A record using it. Am I configuring this incorrectly? What am I doing wrong?

    Read the article

  • slow DNS resolution

    - by Ehsan
    I have a DNS server that resolves all queries for an internal group of servers. It is a bind on CentOS 5.5 (same as RHEL5) and I have set it up to allow recursion and resolve direction without any forwarders. The problem I am facing is that it takes a freakishly long amount of time to resolve a name for the first time. (in the magnitudes of 20 sec) This causes clients to give timeout. When I set it to forward all to Google's public DNS, i.e. 8.8.8.8+8.8.4.4, it works very nicely (within a second). I tried monitoring the traffic on the net to see why it is doing this: [root@ns1 ~]# tcpdump -nnvvvA -s0 udp tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 23:06:36.137797 IP (tos 0x0, ttl 64, id 35903, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.10.36942 > 172.17.1.4.53: [udp sum ok] 19773+ A? www.paypal.com. (32) E..<[email protected]... .....N.5.(6.M=...........www.paypal.com..... 23:06:36.140594 IP (tos 0x0, ttl 64, id 56477, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.6128 > 192.35.51.30.53: [udp sum ok] 10105 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) E..G....@........#3....5.3fR'y...........www.paypal.com.......)........ 23:06:38.149756 IP (tos 0x0, ttl 64, id 13078, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.52425 > 192.54.112.30.53: [udp sum ok] 54892 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) [email protected]&.....6p....5.3.q.l...........www.paypal.com.......)........ 23:06:40.159725 IP (tos 0x0, ttl 64, id 43016, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.24059 > 192.42.93.30.53: [udp sum ok] 11205 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) E..G....@..@.....*].]..5.3..+............www.paypal.com.......)........ 23:06:41.141403 IP (tos 0x0, ttl 64, id 35904, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.10.36942 > 172.17.1.4.53: [udp sum ok] 19773+ A? www.paypal.com. (32) E..<.@..@..@... .....N.5.(6.M=...........www.paypal.com..... 23:06:42.169652 IP (tos 0x0, ttl 64, id 44001, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.4.9141 > 192.55.83.30.53: [udp sum ok] 1184 A? www.paypal.com. (32) E..<[email protected].#..5.(...............www.paypal.com..... 23:06:42.207295 IP (tos 0x0, ttl 54, id 38004, offset 0, flags [none], proto: UDP (17), length: 205) 192.55.83.30.53 > 172.17.1.4.9141: [udp sum ok] 1184- q: A? www.paypal.com. 0/3/3 ns: paypal.com. NS ns1.isc-sns.net., paypal.com. NS ns2.isc-sns.com., paypal.com. NS ns3.isc-sns.info. ar: ns1.isc-sns.net. AAAA 2001:470:1a::1, ns1.isc-sns.net. A 72.52.71.1, ns2.isc-sns.com. A 38.103.2.1 (177) E....t..6./A.7S......5#..................www.paypal.com..................ns1.isc-sns.net..............ns2.isc-sns...............ns3.isc-sns.info..,.......... ..p.............,..........H4G..I..........&g.. (this goes on for a few more seconds) If you look carefully, you will see that the first 3-4 root servers did not respond at all. This wastes 7-8 seconds, until one of them responded. Do you think I have setup something wrong here? Interestingly, when I dig directly from the root servers that did not respond, the always respond very fast (showing the firewall/nat is not the issue here). E.g. dig www.paypal.com @192.35.51.30 works perfectly, consistently, and very fast. What do you think about this mystery?

    Read the article

  • setting up my own name server

    - by mmokh
    I'm in the process of setting up my own name servers using BIND9, however I want to visualize the name server setup in relation to registrars and other name servers. Say I have a domain www.mydomain.com I setup my 2 name servers: ns1.mydomain.com - 192.168.0.1 ns2.mydomain.com - 192.168.0.2 1) How does the world know that my name servers are now at ns1.mydomain and ns2.mydomain. I read about setting up glue records at my registrar. Could you please elaborate on this, i.e. once i setup these glue records, can I now use my name servers in NS records for any other domain? For e.g. NS records for www.otherdomain.com - ns1.mydomain.com/ns2.mydomain.com 2) Given I setup the glue records as mentioned above, do I "have to" update mydomain.com NS records to point to my name servers? Can I keep mydomain.com NS records pointing to my registrars name servers, however use ns1.mydomain.com/ns2.mydomain.com as name servers for any other domain I own? Thanks

    Read the article

  • Android application Database Framework

    - by Marek Sebera
    When creating mobile (specially Android) application, I usually come to touch with similar pattern of working with data. Usually I need to fetch some remote data (covered by authorization process) to local cache. And on next request: Check networking Check presence of cache file Check version of cache file (if networking) Get new version and save cache (if networking and file not in cache, or outdated) Data store is no-SQL JSON Document-Based (and yes, I know about CouchDB Android version, but it doesn't fit my needs yet.) Process of authorizing to data source and code for check version of local cache is adapted to application. But the other code (handling network, saving cache, handling exceptions,...) is always the same. Is there any Data Store helper I can use, which provides functions I described above?

    Read the article

  • How to setup NS for a subdomain

    - by DK M
    Hello, I have a DomainA.com use : ns1.mydomain.com ns2.mydomain.com I want create subdomain myname.domainA.com and use NS of other Server ns1.godaddy.com ns2.godaddy.com for that sub, please help, how to config in my NS ? I use Blind.

    Read the article

  • Setup my domain at Whois.com as nameservers for a Dedicated Server with Kloxo

    - by BoDiE2003
    Hello, this is my first time at ServerFault, I'm a stackoverflow user. I'm faceing the next problem and may be its me, but I can't find proper guides to set up a domain and nameservers for a dedicated box. I have a domain, at whois.com, and a Dedicated server at Reliable Hosting Services, the server has 5 IPs, I know that I need 2 of them for the nameservers. Right now, my domain at whois.com is using nsX.whois.com nameservers and it has 2 child nameservers: ns1.mydomain.com & ns2.mydomain.com pointing to those 2 IPs from my Server. Whats next? I still cannot set that domain as my main server domain since it says: To map an IP to a domain, the domain must ping to the same IP, otherwise, the domain will stop working. The domain you are trying to map this IP to, doesn't resolve back to the IP, and so it cannot be set as the default domain for the IP. Well and I'm stuck on those steps, whats next to have my nameservers working and my main domain assigned to my server? Thank you very much and happy new year!!

    Read the article

  • whois returns correct changed date but wrong nameservers

    - by sergio
    I was just told by 1&1 customer support that "the date in the whois could show correctly while the nameservers information being the old one" I though the whole document was stamped at once, not "built" from different data sources. Am I being lied to? or how is that possible? The site is not visible yet, the whois shows correct date the change was made, and the nameservers are still wrong in that report/record/document and of course in the world's dns servers.

    Read the article

  • few basic questions on webhosting (namservers & dns records)

    - by claws
    I bought a domain name on name.com & I want to use free webhosting on 110mb.com By default name.com integrates services of Google apps. Name server entries are ns1.name.com ns2.name.com ns3.name.com ns4.name.com When I registered on 110mb.com it gave me two addresses ns1.110mb.com ns2.110mb.com This is where I'm lost. The concept is that "Domain name should point to an address of the server where the website is hosted" right? Then why are these 4 entires by default. How exactly is it working? should I remove these 4 and then add 110mb.com servers or just append 110mb.com server addresses to name.com ones. I would like to use google apps. If I change these name server addresses would that remove google apps? I especially want to use email service of google. And I really don't understand what is CNAME, MX, or something something. I want to learn about these stuff & how it exactly works. When I search for webhost tutorial. I'm unable to find any fruitful results.

    Read the article

  • 27 days after domain transfer name servers not propogated

    - by Thom Seddon
    We recently bought the domain: embarrassingnightclubphotos.com 7 days after accepting the transfer the domain finally transferred to our registrar and we immediately changed the name servers from ns*.netregistry.net to amy.ns.cloudflare.com and cody.ns.cloudflare.com 20 days after changing the name servers, the majority of tests show that both old and new nameservers are still being reported: http://intodns.com/embarrassingnightclubphotos.com http://www.whatsmydns.net/#NS/embarrassingnightclubphotos.com We are now ready to launch the new site but this issue is plagueing us as a high proportion of the traffic is still receiving the old nameserves and so hitting the old server. You can tell if you have hit the old or new server as the old server has the value "A" for the meta tag "Location" and the new server has "U". (The old server just has an iframe too!) I have never had this problem before - who is causing this and how should we go about reaching a resolution? Thanks

    Read the article

  • Why is facebook cache buggy?

    - by IAdapter
    I just started using facebook and I see that many times when I add something to my profile and visit it later its not there. I bet the reason is that the page is cached and not updated very often. Is this on purpose or is it a bug? P.S. For example I added the music I like and later I see that I did not add it, but next day when I visit again its there. I saw it in two web-browsers, so its a facebook bug. Does it has something to do with scalability?

    Read the article

  • How can I best implement 'cache until further notice' with memcache in multiple tiers?

    - by ajreal
    the term "client" used here is not referring to client's browser, but client server Before cache workflow 1. client make a HTTP request --> 2. server process --> 3. store parsed results into memcache for next use (cache indefinitely) --> 4. return results to client --> 5. client get the result, store into client's local memcache with TTL After cache workflow 1. another client make a HTTP request --> 2. memcache found return memcache results to client --> 3. client get the result, store into client's local memcache with TTL TTL = time to live Is possible for me to know when the data was updated, and to expire relevant memcache(s) accordingly. However, the pitfalls on client site cache TTL Any data update before the TTL is not pick-up by client memcache. In reverse manner, where there is no update, client memcache still expire after the TTL First request (or concurrent requests) after cache TTL will get throttle as it need to repeat the "Before cache workflow" In the event where client require several HTTP requests on a single web page, it could be very bad in performance. Ideal solution should be client to cache indefinitely until further notice. Here are the three proposals about futher notice Proposal 1 : Make use on HTTP header (current implementation) 1. client sent HTTP request last modified time header 2. server check if last data modified time=last cache time return status 304 3. client based on header to decide further processing GOOD? ---- - save some parsing for client - lesser data transfer BAD? ---- - fire a HTTP request is still slow - server end still need to process lots of requests Proposal 2 : Consistently issue a HTTP request to check all data group last modified time 1. client fire a HTTP request 2. server to return last modified time for all data group 3. client compare local last cache time with the result 4. if data group last cache time < server last modified time then request again for that data group only GOOD? ---- - only fetch what is no up-to-date - less requests for server BAD? ---- - every web page require a HTTP request Proposal 3 : Tell client when new data is available (Push) 1. when server end notice there is a change on a data group 2. notify clients on the changes 3. help clients to fetch again data 4. then reset client local memcache after data is parsed GOOD? ---- - let the cache act/behave like a true cache BAD? ---- - encourage race condition My preference is on proposal 3, and something like Gearman could be ideal Where there is a change, Gearman server to sent the task to multiple clients (workers). Am I crazy? (I know my first question is a bit crazy)

    Read the article

  • How to set up a DNS name server to always resolve to a constant IP address for every request

    - by Andy Higgins
    I am looking for a simple DNS name server set up to always return the same IP address no matter what the request is. The reason for this is we are a domain registrar and when a domain is first registered we need it to have valid name servers (and don't want to have to first create name server records before registering a domain). We will then subsequently change the name server records after the domain has been registered. I assume this is possible to do with bind but was wondering if there might be a simpler solution available using one of the more light weight name servers out there? Any suggestions on how to accomplish this in a simple manner will be appreciated.

    Read the article

  • [Nameservers] Can I setup 5 ips to 1 server and have only 2 nameservers?

    - by Tyler
    So I have 1 computer with 5 IP's and around 15 sites being hosted. I have 4 of the ips setup to be dedicated for 4 sites and the rest share the 5th ip. When I'm setting up my name server, do I set it up at Godaddy my Registar or on my server's dns or both? Can I just setup NS1 - Add all the ips NS2 - Add all the ips And just have all the sites use those two name servers?

    Read the article

  • Testing DNS configuration of domain by using hosts file?

    - by Alex Blundell
    I'm currently migrating a website to another server, and want to test the DNS configuration (more specifically, email mx records) before moving the domain over. I've configured the DNS on the new server to have mx entries for Google Apps in the same way that it's configured on the old server. The domain is controlled by nameservers on the old server at the moment, so the change would simply be updating the nameservers to the new servers. (What I'm getting at is DNS is controlled at the server level, not registrar level). Since the website has quite a number of users, I want to make sure the configuration is right before flicking the switch. For this, can I add an entry to the hosts file of my local computer to point the domain to the new server? I've done this, and the web server works, but would this also test the email mx records on the new server?

    Read the article

  • Does changing web hosts (changing a domain's nameservers) affect the private nameservers / glue records created under that domain?

    - by Kris
    We currently have a virtual dedicated server with GoDaddy and have 4 domains under it. I ended up creating private nameservers under, say mydomain_a.com, and have ns1.mydomain_a.com and ns2.mydomain_a.com as the nameservers for the other 3 domains. Now, we're thinking of switching web hosts (not domain registrar just the host) which means I have to change mydomain_a.com's nameservers to the new host. Will that affect or mess with the other 3 domains still pointing to ns1.mydomain_a.com and ns2.mydomain_a.com? Will that affect the private nameservers / glue records in anyway? Currently: domain: mydomain_a.com nameservers (GoDaddy): ns1.mydomain_a.com ns2.mydomain_a.com domain: mydomain_b.com nameservers (GoDaddy): ns1.mydomain_a.com ns2.mydomain_a.com After the Change: domain: mydomain_a.com nameservers (Other Host): ns1.some_other_host_ns.com ns2.some_other_host_ns.com This is my Question, Would this be affected? domain: mydomain_b.com nameservers (GoDaddy): ns1.mydomain_a.com ns2.mydomain_a.com

    Read the article

  • Configuring Bind9 on ubuntu

    - by Jerry
    I am trying to configure name server on Ubuntu just for learning. I have followed this tutorial. After configuring bind9 I have restarted it and works well. I have no registered domain name and public IP, so I have used a random domain name(khalidiitdu.com) that is not registered. When I dig khalidiitdu.com, it shows status: NXDOMAIN. If I use nslookup command, it shows ** server can't find khalidiitdu.com: NXDOMAIN. Now question is: Is registered domain mandatory to configure bind9 within a LAN? If not please suggest me alternative ways. Thanks.....

    Read the article

  • Can I autoregister my servers hostname in my local DNS? [on hold]

    - by Christian Wattengård
    We have evaluated a W2k12 server as a domain controller at work. This has the extra benefit of registering every "subordinate" computers name in it's DNS so that I don't have to go around remembering IP's all the time. (And it let's me easily run dhcp also on my "pop-up" dev-servers). We need to rework our work network for several odd reasons, and in this new scenario there was no money for an extra Windows 2012 license. We have at our disposal several old boxes that run linux quite well. Is it possible to set up a DNS-server-"appliance" that somehow autoregisters it's own hostname.. Scenario: Router (N66u) on 172.20.20.1. Runs DHCP on 172.20.20.100-200 range. Server [verdant] of a *nix flavor on 172.20.20.2 Laptop [speedy] of W8 flavor on DHCP assigned Laptop [canary] of W8 flavor on DHCP assigned Desktop [lianyu] of Ubuntu flavor on DHCP assigned What I would like is that all of the above servers (except possibly the router) would be available on verdant.starling.lan and canary.starling.lan and so on. This is how it works right now (except the Ubuntu box... I haven't cracked that one yet) because Windows just does this for you.. I would also be able to do this without any manual labor on the server. When I tell my box it's name is smoak it should "immediately" be available as smoak.starling.lan without any extra configuration on my part. How can I do this in a Linux (Ubuntu) environment?

    Read the article

  • Dns - wildcard vs. cname subdomains

    - by Matthew
    Alright I have to admit I'm confused with how DNS works. I've always just added things until they worked, and now it's time to learn how they work. So one confusing thing to me is that there's sort of two places I can have records. I have an account with rackspace cloud servers. And then there's the place I registered the domain. But both allow me to edit DNS records. Should I do everything at both places or is one better than the other or am I missing the point? Subdomains confuse me too. I'd like to be able to just have a wildcard subdomain (I've done this in the past.) I just don't like the idea of adding a cname record or A record every time I need a new subdomain. Then I read this and it says: The exact rules for when a wild card will match are specified in RFC 1034, but the rules are neither intuitive nor clearly specified. This has resulted in incompatible implementations and unexpected results when they are used.

    Read the article

  • how to figure out why sites on my server aren't loading

    - by Derek
    I seem to randomly receive "page cannot load, cannot connect to server" errors for sites on one of my servers. when this happens, it seems to only happen on certain IPs or IP ranges at a time. I say this because while I'll get the error from my home laptop I'll be able to access the site fine from my work computer or from an offsite VPS. DNS records should already be fully propagated as these records were updated months ago. I have no idea how to diagnose what's going on. Is there a tool in cpanel or outside on the web that can help me figure out what's going on?

    Read the article

  • Recovering an old website

    - by noah
    I have a client with an old website that somebody setup for him long ago. The guy who set it up is unreachable, so how do we go about trying to take it over? A WHOIS lookup got us some contact information, but I don't have great hopes for that (it hasn't been update in quite some time). The nameservers are ns1.theplanet.com and ns2.theplanet.com, and we will try calling them, but I don't expect we'll be able to get much from them. What are our options? Is there a way I can discover the registrar so we can try contacting them as well? EDIT: It would be sufficient if we could get control of the domain name or put in some sort of redirect to the new site. Either hosting was prepaid for quite some time, or someone else is still paying for it, so we don't care about that.

    Read the article

  • Cannot resolve a single A Record from client machine

    - by Alex
    I set up a simple Bind server on my VPS and it is working properly. The problem occurs with my local windows machines, which are connected to internet through the home router. I created an A-record named 'dev' and it is invisible from my local network for some reason, though people from other locations can resolve dev.mydomain.com. Ironically, dev.mydomain.com cannot be resolved for myself only. If I add another A-record, say, 'gamma' then it becomes visible from my local windows machines instantly. So this is just for that particular 'dev' name. The only difference is that I had dev.mydomain.com server on another IP but that was a month ago; all nameservers have been changed since then. I tried to reboot my router and flushed dns cache on windows machines: no result. Thank you in advance.

    Read the article

< Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >