On Sun, 2007-01-14 at 23:28 +0900, javajunkie wrote: > echo “1” > /proc/sys/net/ipv4/ip_forward > iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE > > End ------ > > but the echo command returns > bash: echo: write error: Invalid argument Try it without quotes, instead: e.g. echo 1 > /proc/sys/net/ipv4/ip_forward Or with ASCII plain double quotes: e.g. echo "1" > /proc/sys/net/ipv4/ip_forward The page you were quoting from had used typographically correct quotes (the ones that look like tiny superset 66 and 99 figures), not the ASCII ones used in programming. -- (Currently testing FC5, but still running FC4, if that's important.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.