Print Page - Adresa DNS

Title: Adresa DNS
Post by: Chipicao on 08 January 2007, 19:15

Azi am avut ceva probleme cu internetul, şi n-a fost prima oară. Mergeau doar anumite pagini (sayit.ro, chip.ro), însă google.ro şi altele nu se încărcau. M-am gândit că ISP-ul are probleme cu rezolvarea adreselor DNS.

Un prieten mi-a spus că pot folosi un alt server DNS introdus manual la TCP/IP properties. Există riscuri, pot avea probleme, sau va funcţiona ireproşabil? Unde aş putea găsi adrese de servere DNS?

Title: Re: Adresa DNS
Post by: aciu on 09 January 2007, 10:54

DNS RDS: 193.231.236.30 193.231.236.25
DNS UPC: 194.102.255.2 194.102.255.3

Foloseşte cu încredere, orice provider ai avea. Teoretic, creşte durata de rezolvare a numelor în IP uri, practic nu e nici o diferenţă.

Title: Re: Adresa DNS
Post by: tom on 09 January 2007, 10:55

4.2.2.2

Title: Re: Adresa DNS
Post by: ozzy on 09 January 2007, 14:20

Uhhh? :blink: tom, care e treaba cu 4.2.2.2? :unsure:
Cine are chef sa bage un scurt tutorial despre DNS? :pray:

Title: Re: Adresa DNS
Post by: IceCub on 09 January 2007, 15:10

Domain name system (http://en.wikipedia.org/wiki/Dns)

Domain Name System (http://ro.wikipedia.org/wiki/DNS) - în română

Title: Re: Adresa DNS
Post by: Chipicao on 09 January 2007, 16:28

Multumesc.
tom, ala e de la Verizon (http://www.nwtools.com/default.asp?prog=xwhois&host=4.2.2.2) cumva? :blink:

Title: Re: Adresa DNS
Post by: IceCub on 09 January 2007, 16:35

Quote from: Chipicao on 09 January 2007, 16:28
Multumesc.
tom, ala e de la Verizon (http://www.nwtools.com/default.asp?prog=xwhois&host=4.2.2.2) cumva? :blink:

De la Wikipedia cuvantare:

Quote from: Wikipedia4.2.2.2 is the IP address of a DNS server.

Network users primarily use this address to check their connectivity to the internet by pinging this address. The DNS server is owned by the company Level 3 Communications.

Because the address of this DNS server is easy to remember, its use is spreading rapidly among IT and ICT professionals who quickly want to check the connectivity of a device.

It is also popular with Information technology and ISP help desk personnel, who find the IP address simple to tell people over the phone. It is often more convenient for them to instruct someone to ping 4.2.2.2 rather than the ISP's own DNS server in order to test connectivity.

Title: Re: Adresa DNS
Post by: MLADEN on 09 January 2007, 18:09

Quote from: aciu on 09 January 2007, 10:54
DNS RDS: 193.231.236.30 193.231.236.25

în TM sunt:
193.231.233.1
193.231.233.8

Title: Re: Adresa DNS
Post by: tujako26 on 06 February 2007, 10:24

Daca folosesti DNS-ul altui provider nu o sa ai viteza mai mare la net? Adica..rtc-ul sa nu mai dea limitarea? :crazy: Ohh numa prostii spun :fight:

Title: Re: Adresa DNS
Post by: ~Empathy~ on 06 February 2007, 17:50

Nu.

Title: Re: Adresa DNS
Post by: kquizak on 06 February 2007, 23:05

referitor la asta...
cum pot sa fac un domeniu?
de ex vreu ca www.exemplu.ro sa fie gazduit de mine..cum fac ca adresa mea ip sa fie listata in db unui server DNS?

Title: Re: Adresa DNS
Post by: ~Empathy~ on 07 February 2007, 08:23

Ai nevoie de domeniu de la rotld, apoi ai nevoie de cateva servere dns, care pot sa fie ale tale sau ale altcuiva, de ex gratuite. La domeniile inregistrate la rotld pui nameserverele alese.

Title: Re: Adresa DNS
Post by: laf on 20 March 2007, 11:00

kquizak in ce stadiu te mai afli cu proiectul ?
ma intereseaza si pe mine ideea ta, si sper s am timp

pana atunci, o mica intrebare: daca ip meu este neroutabil ( din camin), pot sa imi fac domeniu ?

Title: Re: Adresa DNS
Post by: Sharky on 20 March 2007, 21:46

domeniile nu se fac, se cumpara.

din cate stiu eu poti sa iti gazduiesti un domeniu pe propriul pc doar daca e routabil.

Acum am si eu o intrebare pentru voi. In loc sa va chinuiti cu site-ul pe pc-ul de acasa, tot felul de chestii instalate, omorarea conexiunii la net etc, nu puteti sa renuntati la 1 bere pe luna si sa va luati un host?(sunt n hosturi la 1 euro/luna) sau va cumparati un domeniu si il gazduiti la un provider gen evonet(daca va place uptime 87-89%) sau eu stiu, se gasesc si altii pe afara care gazduiesc domenii gratis.

Title: Re: Adresa DNS
Post by: Chipicao on 27 December 2009, 18:06

Cam veche stirea, dar Google a lansat Public DNS (http://code.google.com/speed/public-dns/)
8.8.8.8
8.8.4.4

Nu le-am incercat dar am adaugat unul in lista cu DNS-uri in caz ca au probleme cele de la ISP.

Title: Re: Adresa DNS
Post by: SoNic on 21 April 2010, 01:19

Verifica cate hop-uri ai de la tine pana la ei.
tracert
Eu folosesc OpenDNS (http://www.opendns.com/) (208.67.222.222; 208.67.220.220) pentru ca imi ofera o configurare gratis destul de interesanta si au si servere aproape de mine. Am 28+16ms de la serverul meu. La gogu am 16+16+28+15.

(http://img217.imageshack.us/img217/8514/opendnsy.png)
(http://img227.imageshack.us/img227/5893/googlet.png)

Title: Re: Adresa DNS
Post by: Chipicao on 21 April 2010, 13:51

La mine e mai bun Google DNS, insa ambele palesc in fata DNS-ului de la ISP. Oricum sunt doar solutii in caz de urgenta. Are idee cineva cum pot configura conexiunea asa incat sa foloseasca un al treilea DNS, dar numai si numai daca cele principale sunt moarte?

Code Select

Tracing route to google-public-dns-a.google.com [8.8.8.8] over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     1 ms    <1 ms    <1 ms  94-62-70-81.b.ipv4ilink.net [94.62.70.81]
  3    <1 ms    <1 ms    <1 ms  bbUnr-ge113-v3417-ilink-concret2.b.ipv4ilink.net [86.55.8.13]
  4     1 ms     1 ms     1 ms  bbNx-ten17-v41-bbUnr.b.ipv4ilink.net [193.19.195.10]
  5     1 ms    <1 ms    <1 ms  iNx-ten150-v20-bbNx.b.ipv4ilink.net [193.19.194.209]
  6     1 ms    <1 ms     1 ms  wNx-ten82-v700-iNx.b.ipv4ilink.net [193.19.194.133]
  7    32 ms    33 ms    31 ms  wFrnk-ten84-v17-wNx.de.ipv4ilink.net [193.19.195.34]
  8    30 ms    30 ms    30 ms  de-cix20.net.google.com [80.81.193.108]
  9    30 ms    30 ms    30 ms  209.85.255.176
 10    30 ms    33 ms    30 ms  72.14.232.167
 11    43 ms    33 ms    37 ms  72.14.239.174
 12    30 ms    30 ms    30 ms  google-public-dns-a.google.com [8.8.8.8]

Trace complete.

Code Select

Tracing route to resolver1.opendns.com [208.67.222.222] over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2    <1 ms    <1 ms    <1 ms  94-62-70-81.b.ipv4ilink.net [94.62.70.81]
  3    <1 ms    <1 ms    <1 ms  bbUnr-ge113-v3417-ilink-concret2.b.ipv4ilink.net [86.55.8.13]
  4     1 ms    <1 ms     1 ms  bbNx-ten17-v41-bbUnr.b.ipv4ilink.net [193.19.195.10]
  5     1 ms    <1 ms    <1 ms  iNx-ten150-v20-bbNx.b.ipv4ilink.net [193.19.194.209]
  6     1 ms    <1 ms    <1 ms  wNx-ten82-v700-iNx.b.ipv4ilink.net [193.19.194.133]
  7    31 ms    32 ms    31 ms  wFrnk-ten84-v17-wNx.de.ipv4ilink.net [193.19.195.34]
  8    29 ms    29 ms    29 ms  xe-5-0-0-2000.edge6.Frankfurt1.Level3.net [195.16.161.1]
  9    29 ms    33 ms    35 ms  vlan99.csw4.Frankfurt1.Level3.net [4.68.23.254]
 10    29 ms    29 ms    29 ms  ae-92-92.ebr2.Frankfurt1.Level3.net [4.69.140.29]
 11    35 ms    36 ms    35 ms  ae-2-2.ebr1.Dusseldorf1.Level3.net [4.69.132.137]
 12    36 ms    36 ms    35 ms  ae-1-100.ebr2.Dusseldorf1.Level3.net [4.69.141.150]
 13    38 ms    38 ms    38 ms  ae-48-48.ebr1.Amsterdam1.Level3.net [4.69.143.209]
 14    38 ms    38 ms    38 ms  ae-1-51.edge4.Amsterdam1.Level3.net [4.69.139.138]
 15    36 ms    36 ms    36 ms  SPLICE-COMM.edge4.Amsterdam1.Level3.net [212.72.40.98]
 16    36 ms    36 ms    36 ms  resolver1.opendns.com [208.67.222.222]

Trace complete.

Code Select

Tracing route to ns1-cache.ipv4ilink.net [193.19.192.15] over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2    <1 ms    <1 ms    <1 ms  94-62-70-81.b.ipv4ilink.net [94.62.70.81]
  3    <1 ms    <1 ms    <1 ms  bbUnr-ge113-v3417-ilink-concret2.b.ipv4ilink.net [86.55.8.13]
  4    <1 ms    <1 ms    <1 ms  aUnr-po12-v27-bbUnr.b.ipv4ilink.net [193.19.194.62]
  5    <1 ms    <1 ms    <1 ms  ns1-cache.ipv4ilink.net [193.19.192.15]

Trace complete.

Title: Re: Adresa DNS
Post by: SoNic on 28 April 2010, 01:35

Ce sa faci, daca ai serverul de DNS in casa, asa ai timpii :)
De fapt au un cache aproape de tine. Nu uita ca Windows are un serviciu de caching DNS.

SayIT

Software => Reţele şi Securitate => Topic started by: Chipicao on 08 January 2007, 19:15