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DoS napad na YUBC, Telekom

[es] :: ISP :: DoS napad na YUBC, Telekom

[ Pregleda: 5367 | Odgovora: 11 ] > FB > Twit

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Markiranje Štampanje RSS

Sizif
Vladimir Milovanović
Strani plaćenik
N44.816 E20.4587

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icon DoS napad na YUBC, Telekom22.12.2006. u 12:47 - pre 210 meseci
Od jutros masa problema sa celim Telekomom, kažu da je razlog što se trenutno odvija neki DoS napad na YUBC zbog koga svi pate od jutros. U vreme dok je bilo najžešće, oko 10 sati, recimo iz Rumunije do BG (EUNET) ping 700ms, 50% dropped.

Ne znam jel primetio još neko ili to mene neko sabotira? :-)
 
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djricky
IT & Network Engineer
AS200305
Beograd

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icon Re: DoS napad na YUBC, Telekom22.12.2006. u 13:23 - pre 210 meseci
ne znam... kod mene sve lepo radi...


“Choose a job you like, and you will never have to work a day of your life”
“Looking at small advantages prevents great affairs from being accomplished”

"Great power comes with great electricity bills"
"The fact that there's a highway to Hell but only a stairway to Heaven says a lot about
anticipated traffic volume"
"Fate: protects fools, little children, and ships named NCC-1701"
 
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djricky
IT & Network Engineer
AS200305
Beograd

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icon Re: DoS napad na YUBC, Telekom22.12.2006. u 13:27 - pre 210 meseci
vidi stvarno, preshaltali na telekom
“Choose a job you like, and you will never have to work a day of your life”
“Looking at small advantages prevents great affairs from being accomplished”

"Great power comes with great electricity bills"
"The fact that there's a highway to Hell but only a stairway to Heaven says a lot about
anticipated traffic volume"
"Fate: protects fools, little children, and ships named NCC-1701"
 
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markom
Marko Milivojević
Network Engineer
Google
Mountain View

Član broj: 18427
Poruke: 4227
*.du.xdsl.is.

Sajt: https://markom.rs


+16 Profil

icon Re: DoS napad na YUBC, Telekom22.12.2006. u 13:50 - pre 210 meseci
markom@imac ~> ping belgrade1.eunet.yu
PING belgrade1.eunet.yu (194.247.193.254): 56 data bytes
64 bytes from 194.247.193.254: icmp_seq=0 ttl=246 time=94.493 ms
64 bytes from 194.247.193.254: icmp_seq=1 ttl=246 time=99.134 ms
64 bytes from 194.247.193.254: icmp_seq=2 ttl=246 time=93.057 ms
64 bytes from 194.247.193.254: icmp_seq=3 ttl=246 time=96.497 ms
64 bytes from 194.247.193.254: icmp_seq=4 ttl=246 time=99.888 ms
^C
--- belgrade1.eunet.yu ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 93.057/96.614/99.888/2.617 ms
markom@imac ~> traceroute belgrade1.eunet.yu
traceroute to belgrade1.eunet.yu (194.247.193.254), 64 hops max, 40 byte packets
1 cisco (192.168.1.252) 3.699 ms 1.513 ms 1.500 ms
2 b06-smaralind.metronet.is (193.4.254.6) 10.544 ms 10.968 ms 11.526 ms
3 d06-bras.metronet.is (193.4.253.245) 11.571 ms 10.349 ms 11.683 ms
4 ldn-b3-link.telia.net (213.248.104.49) 62.410 ms 59.224 ms 57.905 ms
5 ldn-bb1-link.telia.net (80.91.251.18) 57.986 ms 56.468 ms 57.901 ms
6 ffm-bb1-link.telia.net (80.91.249.9) 70.125 ms 71.225 ms 73.103 ms
7 ffm-b1-link.telia.net (213.248.64.138) 71.426 ms 73.555 ms 71.164 ms
8 srbija-116538-ffm-b1.c.telia.net (213.248.96.138) 93.123 ms 91.531 ms 94.549 ms
9 212.200.232.61 (212.200.232.61) 93.863 ms 212.200.232.21 (212.200.232.21) 96.718 ms 94.146 ms
10 212.200.232.50 (212.200.232.50) 94.405 ms 91.356 ms 93.529 ms
11 belgrade1.eunet.yu (194.247.193.254) 97.293 ms 98.351 ms 94.475 ms


Code:
BGP routing table entry for 12969:1:194.247.192.0/19, version 4262303
Paths: (3 available, best #3, table Internet)
  Advertised to update-groups:
     5          6          7          8          9          10         11        
     12         13        
  3257 702 8400 8771
    213.200.77.125 from 213.200.77.125 (213.200.87.23)
      Origin IGP, localpref 75, valid, external
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1
  3320 1239 8400 8771
    212.184.27.189 from 212.184.27.189 (194.25.7.186)
      Origin IGP, localpref 75, valid, external
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1
  1299 8400 8400 8771
    213.248.104.49 from 213.248.104.49 (80.239.146.55)
      Origin IGP, localpref 80, valid, external, best
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1


markom@imac ~> ping www.yubc.net
PING kosmaj.yubc.net (212.124.160.2): 56 data bytes
64 bytes from 212.124.160.2: icmp_seq=0 ttl=245 time=95.116 ms
64 bytes from 212.124.160.2: icmp_seq=1 ttl=245 time=94.459 ms
64 bytes from 212.124.160.2: icmp_seq=2 ttl=245 time=96.140 ms
64 bytes from 212.124.160.2: icmp_seq=3 ttl=245 time=94.759 ms
64 bytes from 212.124.160.2: icmp_seq=4 ttl=245 time=93.858 ms
^C
--- kosmaj.yubc.net ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 93.858/94.866/96.140/0.759 ms
markom@imac ~> traceroute www.yubc.net
traceroute to kosmaj.yubc.net (212.124.160.2), 64 hops max, 40 byte packets
1 cisco (192.168.1.252) 1.556 ms 1.211 ms 1.230 ms
2 b06-smaralind.metronet.is (193.4.254.6) 13.103 ms 10.776 ms 11.545 ms
3 d06-bras.metronet.is (193.4.253.245) 11.699 ms 11.567 ms 11.555 ms
4 ldn-b3-link.telia.net (213.248.104.49) 58.087 ms 58.612 ms 57.665 ms
5 ldn-bb1-link.telia.net (80.91.251.18) 58.010 ms 57.323 ms 57.586 ms
6 ffm-bb1-link.telia.net (80.91.249.9) 70.345 ms 71.299 ms 73.669 ms
7 ffm-b1-link.telia.net (80.91.250.144) 93.827 ms 69.626 ms 69.441 ms
8 srbija-116538-ffm-b1.c.telia.net (213.248.96.138) 94.768 ms 103.679 ms 104.544 ms
9 212.200.232.21 (212.200.232.21) 95.103 ms 95.290 ms 93.517 ms
10 212.200.232.46 (212.200.232.46) 94.005 ms 103.225 ms 212.200.232.50 (212.200.232.50) 103.926 ms
11 yubc-net.telekom.yu (195.178.34.22) 95.525 ms 94.220 ms 95.847 ms
12 kosmaj.yubc.net (212.124.160.2) 94.577 ms 94.180 ms 94.345 ms


Code:
BGP routing table entry for 12969:1:212.124.160.0/19, version 4262720
Paths: (3 available, best #3, table Internet)
  Advertised to update-groups:
     5          6          7          8          9          10         11        
     12         13        
  3257 702 8400 12558
    213.200.77.125 from 213.200.77.125 (213.200.87.23)
      Origin IGP, localpref 75, valid, external
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1
  3320 1239 8400 12558
    212.184.27.189 from 212.184.27.189 (194.25.7.186)
      Origin IGP, localpref 75, valid, external
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1
  1299 8400 8400 12558
    213.248.104.49 from 213.248.104.49 (80.239.146.55)
      Origin IGP, localpref 80, valid, external, best
      Community: 12969:30 12969:31 12969:3044
      Extended Community: RT:12969:1


Meni ovo deluje sasvim OK...
 
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Veljko
Beograd

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*.absolutok.com.

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icon Re: DoS napad na YUBC, Telekom22.12.2006. u 14:36 - pre 210 meseci
Nije moglo da se primeti spolja jer je napad prolazio samo kroz jedan od linkova.
Verovatno da tvoj test nije prolazio kroz isti.

Problem je resen. Ali nakon skoro 5 sati :(

Telekom ima 5 linkova:
AS1299 TELIANET TeliaNet Global Network
AS1239 SPRINTLINK - Sprint
AS3356 LEVEL3 Level 3 Communications
AS3549 GBLX Global Crossing Ltd.
AS5400 BT BT European Backbone

Ne znam tačno koji link je bio u maleru ali sve sto je islo iz Srbare
ka ALTER.NET kroz TELIANET bio je odziv 800 do 1000ms

 
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markom
Marko Milivojević
Network Engineer
Google
Mountain View

Član broj: 18427
Poruke: 4227
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Sajt: https://markom.rs


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icon Re: DoS napad na YUBC, Telekom22.12.2006. u 17:06 - pre 210 meseci
Ako pogledaš detaljnije ono što sam poslao, videćeš da sam i ja išao preko Telia-Sonera ...

Marko.
 
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Veljko
Beograd

Član broj: 967
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*.veljko.net.

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icon Re: DoS napad na YUBC, Telekom22.12.2006. u 18:39 - pre 210 meseci
Ping ka serveru u frankfurtu:


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markom
Marko Milivojević
Network Engineer
Google
Mountain View

Član broj: 18427
Poruke: 4227
*.du.xdsl.is.

Sajt: https://markom.rs


+16 Profil

icon Re: DoS napad na YUBC, Telekom22.12.2006. u 20:07 - pre 210 meseci
A jesi siguran da taj ping ne meri:

1. Performanse servera na kojem se izvršava
2. Performanse tvoje mreže
3. Performanse krajnjeg servera

a ne performanse tranzitnih mreža? Kao argument za ovo, pogledaj dan ranije gde u istom periodu imaš odgovore koji takođe odudaraju od ostatka. Identičan šablon, samo kraće trajanje. Kad bih bio pravi cinik, kao što jesam, povezao bih ovo sa kafe pauzama i onlajn shoppingom bred Božić, a ne sa nekakvim fantomskim DoS napadom :-)

Ping nije pokazatelj kvaliteta i stanja mreže.

Marko.
 
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Veljko
Beograd

Član broj: 967
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*.veljko.net.

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icon Re: DoS napad na YUBC, Telekom23.12.2006. u 10:34 - pre 210 meseci
100% siguran
inace mrtg ne prkazuje veci odziv od 500ms jer je tako podesen inace je bilo kao sto rekoh 800ms do 1sec

sto se tice performansi servera, linka i sl oscilirao bi ping i ka drugim adresama
ww.google.com mesecni:



u svakom slucaju sto je bilo, bilo je, a mislim da nema potrebe razvijati nove terorije
kad jednostavnim telefonskim pozivom mozes dobiti info od Telekoma sta je bilo.
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djricky
IT & Network Engineer
AS200305
Beograd

SuperModerator
Član broj: 1046
Poruke: 4042
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Sajt: https://v6.rs


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icon Re: DoS napad na YUBC, Telekom23.12.2006. u 12:05 - pre 210 meseci
ovo za telefonski poziv mogu i ja da potvrdim posto sam zvao...

inace, preporucio bih http://oss.oetiker.ch/smokeping/ za ovakve stvari...

PS. @Veljko: kad ce vise ona ptica (flash) da se ucita... ?
“Choose a job you like, and you will never have to work a day of your life”
“Looking at small advantages prevents great affairs from being accomplished”

"Great power comes with great electricity bills"
"The fact that there's a highway to Hell but only a stairway to Heaven says a lot about
anticipated traffic volume"
"Fate: protects fools, little children, and ships named NCC-1701"
 
Odgovor na temu

Sizif
Vladimir Milovanović
Strani plaćenik
N44.816 E20.4587

Član broj: 16929
Poruke: 65
*.adsl.beocity.net.



+3 Profil

icon Re: DoS napad na YUBC, Telekom23.12.2006. u 19:36 - pre 210 meseci
Veljko je u pravu, problem su potvrdili i u Telekomu, i u Eunetu. Ovaj MRTG graf se savršeno poklapa sa pozivima besnih klijenata na koje sam ja morao da odgovaram i objašnjavam zašto se naši serveri ne vide spolja i zašto se aplikacija vuče, a ovde interno u Bg nama sve radi kao sat.
 
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marbik

Član broj: 32469
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*.telenor.co.yu.



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icon Re: DoS napad na YUBC, Telekom25.12.2006. u 17:32 - pre 210 meseci
PTT kablovski ne radi nikako, modem pokazuje da je povezan ali net ne radi.
Pocelo je danas oko 15h, nije hteo da otvori b92, bench, dok druge jeste a kroz 15 min totalni kolaps, nista vise nije hteo da otvori i evo i sad je tako.
 
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