java applets dead slow to load
Fred Schaer
fred.schaer at wanadoo.fr
Sat Jun 16 09:14:44 UTC 2007
Hi *,
I'm coming back on this thread/subject : I found out what was wrong...
I have setup a firewall using fwbuilder, and it appeared it changes the
IPv6 policy to "drop everything" by default.
Because I'm curious, I changed back those policies to ACCEPT and logged
every packet :
I ran the following :
ip6tables -A INPUT -i lo -j LOG --log-prefix "IPv6 LOG INPUT - "
--log-tcp-sequence --log-tcp-options --log-ip-options
ip6tables -A INPUT -i lo -j ACCEPT
ip6tables -A OUTPUT -o lo -j LOG --log-prefix "IPv6 LOG OUTPUT - "
--log-tcp-sequence --log-tcp-options --log-ip-options
ip6tables -A OUTPUT -o lo -j ACCEPT
I logged this kind of things :
[ 9736.795461] IPv6 LOG OUTPUT - IN= OUT=lo
SRC=0000:0000:0000:0000:0000:0000:0000:0001
DST=0000:0000:0000:0000:0000:0000:0000:0001 LEN=80 TC=0 HOPLIMIT=64
FLOWLBL=0 PROTO=TCP SPT=54837 DPT=56384 SEQ=1258806303 ACK=0
WINDOW=32752 RES=0x00 SYN URGP=0 OPT
(02043FF80402080A002401790000000001030305)
[ 9736.795481] IPv6 LOG INPUT - IN=lo OUT=
MAC=00:00:00:00:00:00:00:00:00:00:00:00:86:dd
SRC=0000:0000:0000:0000:0000:0000:0000:0001
DST=0000:0000:0000:0000:0000:0000:0000:0001 LEN=80 TC=0 HOPLIMIT=64
FLOWLBL=0 PROTO=TCP SPT=54837 DPT=56384 SEQ=1258806303 ACK=0
WINDOW=32752 RES=0x00 SYN URGP=0 OPT
(02043FF80402080A002401790000000001030305)
And the problem disappeared... now, the big question : would one of you
know why java requires IPV6 on an IPV4 network ?
auxiliary question : I'm not a firewall expert, but I don't think what I
did is insecure, is it ?
Cheers
Chris Miller a écrit :
> You need to have the GCJ stuff installed as well. When Java 6 runs,
> it also uses some linked binaries from GCJ (as far as I can tell from
> HTOP stack traces of Eclipse). Try installing GCJ, make sure that
> Java 6 is the default, and then try.
>
> HTH.
>
>
More information about the kubuntu-users
mailing list