On Sun, 17 Oct 2004 05:49:21 +0700, maikhai <[EMAIL PROTECTED]> wrote:
Hi all!
Ngay sau khi install Slackware, thu vao mang va gui meo deu OK:
[EMAIL PROTECTED]:/home/mk2# iptables -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
[EMAIL PROTECTED]:/home/mk2#
nhu+ the^' na`y la no firewall cho in/out packet , ta^'t nhie^n la` OK !
==========================================================
Bo? ca'i firewall file vao /etc/rc.d/rc.M thi:
[EMAIL PROTECTED]:/home/mk2# iptables -L
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state
RELATED,ESTABLISHED
ACCEPT udp -- anywhere anywhere udp spt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootpc
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[EMAIL PROTECTED]:/home/mk2#
Va` go.i Firefox thi` bi. ba'o lo^~i "www.mozilla.org could not be
found. Please. .."
Go.i Thunderbird thi` bi. ba'o lo^~i "Fail to connect to server
pop.mail.yaho.ca"
nhu+ the^' na`y la` do ko query ddu+o+.c DNS server
cu. thu+?
cu. cho xem ca'i /etc/resolve.conf cu?a cu. hoa(.c cu. bo? ma^'y do`ng
sau va`o /etc/resolve.conf
-------------
nameserver 203.162.0.181
nameserver 203.162.0.11
nameserver 203.162.4.1
-------------
ca'i rule cu?a larry look good ma` sao la. va^.y
cu. co' the^? test ba(`ng ca'ch sau:
khi ddang co' firewall thu+? ping va`i site nhu www.vnn.vn ,
home.vnn.vn , www.google.com, www.yahoo.com xem no' co' resolve ca'c
FDQN na`y ra IP address ko, ne^'u ko ddu+o+.c cu. thu+? ping
203.162.0.11 , 203.162.4.1 ne^'u result la` Reply thi` cu. cho+i ca'i
chie^u du`ng con no'i be^n tre^n ( /etc/resolve.conf )
sau ddo' thu+? la.i
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