As I posted on this list 08/26/2001: Enter the line echo "0" > /proc/sys/net/ipv4/tcp_ecn in file /etc/rc.d/rc.local It is then possible after a reboot.
-- Bjarne Thomsen Jason Bodnar wrote: > > After much trial and error I determined the cause of this problem: TCP Explicit > Congestion Notification support is built into the stock Mandrake 8.1 kernel and > is not turned off at boot time. Obviously, the root of the problem is > walgreens, etc. having bad routers (not sure why my print server was refusing > the connection as well) but Mandrake either needs to disable this in their > kernels or provide an init script that does: > > echo 0 > /proc/sys/net/ipv4/tcp_ecn > > Very, very nasty problem to track down. > > On 31-Oct-2001 Jason Bodnar wrote: > > I upgraded to 8.1 the other day and now I can't connect to certain hosts such > > as walgreens.com, matrix.net, puc.state.tx.us or the web admin interface of > > my > > Intel printserver. > > > > Simply trying to telnet to any of these hosts results in a connection > > refused: > > > > $ telnet www.walgreens.com 80 > > Trying 63.73.199.22... > > telnet: Unable to connect to remote host: Connection refused > > > > $ telnet pucsmtp.puc.state.tx.us 25 > > Trying 168.39.76.245... > > telnet: Unable to connect to remote host: Connection refused > > > > $ telnet 192.168.1.5 80 > > Trying 192.168.1.5... > > telnet: Unable to connect to remote host: Connection refused > > > > > > A windows machine and a Mandrak 8.0 box on my internal network can get to > > these > > hosts just fine. > > > > The only table configured is nat: > > > > $ sudo iptables -t nat -L > > Chain PREROUTING (policy ACCEPT) > > target prot opt source destination > > > > Chain POSTROUTING (policy ACCEPT) > > target prot opt source destination > > MASQUERADE all -- anywhere anywhere > > > > Chain OUTPUT (policy ACCEPT) > > target prot opt source destination > > > > > > The rest are empty: > > > > $ sudo iptables -t filter -L > > Chain INPUT (policy ACCEPT) > > target prot opt source destination > > > > Chain FORWARD (policy ACCEPT) > > target prot opt source destination > > > > Chain OUTPUT (policy ACCEPT) > > target prot opt source destination > > > > $ sudo iptables -t mangle -L > > Chain PREROUTING (policy ACCEPT) > > target prot opt source destination > > > > Chain OUTPUT (policy ACCEPT) > > target prot opt source destination > > > > > > Any ideas? > > > > -- > > Jason Bodnar > > [EMAIL PROTECTED] > > > > -- > Jason Bodnar > [EMAIL PROTECTED] > > >------------------------------------------------------------------------------------------------------------------------------------ > Want to buy your Pack or Services from MandrakeSoft? > Go to http://www.mandrakestore.com
Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
