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and subject line latest xinetd Debian package (2.1.8.7) fixes these problems
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Date: Wed, 18 Aug 1999 14:45:29 +0000 (GMT)
From: Fernando Sanchez <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: xinetd: obsolete /etc/init.d/netbase script included?
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Package: xinetd
Version: 2.2.1-8
Severity: normal
I think /etc/init.d/netbase file installed by xinetd package is
obsolete, as it does not try to set spoof protection using
/proc/sys/net/ipv4/conf/*/rp_filter method, but only ipfwadm/ipchains
127.0.0.0 protection.
I suggest that the following spoofprotect () is used in that script (it is
taken from netbase 3.15-4), instead of the current one:
-----------------------------------------------------------------------------
spoofprotect () {
# This is the best method: turn on Source Address Verification and get
# spoof protection on all current and future interfaces.
if [ -e /proc/sys/net/ipv4/conf/all/rp_filter ]; then
echo -n "Setting up IP spoofing protection..."
for f in /proc/sys/net/ipv4/conf/*/rp_filter; do
echo 1 > $f
done
echo "done."
# rules for linux 2.0.x and 2.1.x (x < 102) kernels
elif [ -e /proc/net/ip_input ]; then
echo -n "Setting up IP spoofing protection..."
# delete and readd entry (this way we don't get duplicate entries)
# deny incoming packets pretending to be from 127.0.0.1
ipfwadm -I -d deny -o -P all -S 127.0.0.0/8 -W eth0 -D 0/0 2>/dev/null
|| true
ipfwadm -I -d deny -o -P all -S 127.0.0.0/8 -W eth1 -D 0/0 2>/dev/null
|| true
ipfwadm -I -i deny -o -P all -S 127.0.0.0/8 -W eth0 -D 0/0 >/dev/null
ipfwadm -I -i deny -o -P all -S 127.0.0.0/8 -W eth1 -D 0/0 >/dev/null
# deny incoming packets pretending to be from our own system.
# set your own IP address below (or use `hostname -i` to set it).
# my_ip=192.168.14.1
# ipfwadm -I -d deny -o -P all -S $my_ip -W eth0 -D 0/0 2>/dev/null ||
true
# ipfwadm -I -d deny -o -P all -S $my_ip -W eth1 -D 0/0 2>/dev/null ||
true
# ipfwadm -I -a deny -o -P all -S $my_ip -W eth0 -D 0/0 >/dev/null
# ipfwadm -I -a deny -o -P all -S $my_ip -W eth1 -D 0/0 >/dev/null
echo "done."
# rules for linux 2.1.x (x > 101) kernels
elif [ -e /proc/net/ip_fwchains ]; then
echo -n "Setting up IP spoofing protection..."
ipchains -D input -j DENY -l -s 127.0.0.0/8 -i ! lo 2>/dev/null || true
ipchains -A input -j DENY -l -s 127.0.0.0/8 -i ! lo
# deny incoming packets pretending to be from our own system.
# set your own IP address below (or use `hostname -i` to set it).
# my_ip=192.168.14.1
# ipchains -D input -j DENY -l -s $my_ip -i ! lo 2>/dev/null || true
# ipchains -A input -j DENY -l -s $my_ip -i ! lo
echo "done."
fi
}
-----------------------------------------------------------------------------
-- System Information
Debian Release: potato
Kernel Version: Linux catshouse 2.2.11 #1 Wed Aug 18 14:10:45 CEST 1999 i586
unknown
Versions of the packages xinetd depends on:
ii libc6 2.1.2-0pre7 GNU C Library: Shared libraries and timezone
ii netbase 3.15-4 Basic TCP/IP networking binaries
---------------------------------------
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Date: Sun, 26 Dec 1999 20:46:22 +0100
From: Josip Rodin <[EMAIL PROTECTED]>
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Subject: latest xinetd Debian package (2.1.8.7) fixes these problems
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Hi people,
All these problems you reported against Debian xinetd package
are fixed now. Please upgrade, if you can.
In case you wondered, the bugs haven't been closed until now because the
package maintainer wasn't around, and the package is in fact orphaned. I am
doing this as a member of the quality assurance group.
Thanks for reporting...
--
enJoy -*/\*- don't even try to pronounce my first name
