somethink iz broken on your internets.

On 30.06.2011 15:22, Adrian Sevcenco wrote:
> On 06/30/11 13:57, Dumitru Ciobarcianu wrote:
>> lower MTU
> mda .. ma gindisem si eu si am dat cu tracepath pe niste server
> cunoscute .. dar nu mi-au zis nimic ca s-ar schomba mtu-ul pe drum
> undeva .. am scanat de mina si am gasit mtu-ul functionabil 988 ..
> 
> aveti idee de ce nu s-a facut recunoasterea automat?
> am gasit aceste defaulturi la mine :
> [root@sevdell ~]# sysctl -A | grep mtu
> net.ipv4.route.mtu_expires = 600
> net.ipv4.route.min_pmtu = 552
> net.ipv4.ip_no_pmtu_disc = 0
> net.ipv4.tcp_mtu_probing = 0
> net.ipv6.conf.all.mtu = 1280
> net.ipv6.conf.default.mtu = 1280
> net.ipv6.conf.lo.mtu = 16436
> net.ipv6.conf.em1.mtu = 1500
> net.ipv6.route.mtu_expires = 600
> 
> nu ar fi trebuit ca net.ipv4.tcp_mtu_probing sa fie 1?
> Multumesc!
> Adrian
> 
> 
>>
>>
>> On 30.06.2011 14:56, Adrian Sevcenco wrote:
>>> Salut! Dupa cum spun in subiect am o situatie horror SF .. sunt intr-un
>>> campus unde ma leg cu wirelessul .. am ping, telenet la diverse servere
>>> ... dar browserele NU MERG!!! e acceptata conexiunea cu telenet server
>>> 80, pot sa fac ssh , dar browserele dau time out .. am ping si dupa cum
>>> se vede pot sa trimit si mail!!! dar nu pot accesa http-ul!!!
>>> sunt disperat!!! nu gasesc nici o explicatie .. selinux-ul e disabled ..
>>> partea cea mai stranie e ca daca ma leg prin ssh la niste servere unde
>>> dau ifconfig se blocheaza conexiunea!!
>>> asta se intimpla pe fedora 15 cu un forte frugal iptables:
>>>
>>> [root@sevdell ~]# iptables -nL
>>> Chain INPUT (policy ACCEPT)
>>> target     prot opt source               destination
>>> ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state
>>> RELATED,ESTABLISHED
>>> ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0
>>> ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
>>> ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state NEW
>>> tcp dpt:60000
>>> DROP       all  --  0.0.0.0/0            0.0.0.0/0
>>>
>>> Chain FORWARD (policy ACCEPT)
>>> target     prot opt source               destination
>>>
>>> Chain OUTPUT (policy ACCEPT)
>>> target     prot opt source               destination
>>>
>>> aveti o idee despre chestia asta extraterestra?
>>> Multumesc!!!
>>> Adrian
> 
> 
> 
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