Displaying 11 results from an estimated 11 matches for "icmp_ignore_bogus_error_responses".
2013 May 21
1
samba4 AD - strange slowness after enable iptables based firewall
...cho_ignore_all
/bin/echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
/bin/echo "0" > /proc/sys/net/ipv4/conf/all/accept_source_route
/bin/echo "0" > /proc/sys/net/ipv4/conf/all/accept_redirects
/bin/echo "1" > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
/bin/echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter
/bin/echo "1" > /proc/sys/net/ipv4/conf/all/log_martians
iptables -A INPUT -i lo -j ACCEPT
iptables -A OUTPUT -o lo -j ACCEPT
iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
iptables -A INPUT -m sta...
2004 Mar 01
0
logs strangers...
...4 / 192.168.230.254 /
192.168.210.254 / ...
eth2 haves diferents IP Aliasings because it connect to
a switch which connect 4 access points (linksys), each
giving connection for every eth2 "C" class
Along a week I''ve changed my syslog.ctl like:
net.ipv4.ip_forward = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_sack = 0
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_low_latency = 1
net.ipv4.tcp_ecn = 0
net.ipv4.conf.all.accept_sour...
2000 Oct 26
0
New HOWTO content: DSMARK and a few obscure flags
...<esteve@hades.udg.es> on ''DSMARK'' for
Differential Services:
http://ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing-9.html#ss9.6
And three obscure settings /proc files that are now documented, thanks to
Jorge Novo <jnovo@educanet.net>:
/proc/sys/net/ipv4/icmp_ignore_bogus_error_responses,
/proc/sys/net/ipv4/icmp_paramprob_rate,
/proc/sys/net/ipv4/tcp_fin_timeout
Regards,
bert hubert
--
PowerDNS Versatile DNS Services
Trilab The Technology People
''SYN! .. SYN|ACK! .. ACK!'' - the mating call of the internet
1999 Jan 25
3
ICMP Error
I just installed pre 9 of kernel 2.2.0. I am now getting echoed to the
screen of whatever virtual terminal I am in the following message:
172.16.81.99 sent an invalid ICMP error to a broadcast
This is repeated for a number of IP addresses.
Obviously, the problem is two fold. Firstly I need to find out what the
problem is with the servers. However, I find it somewhat annoying to
having this
2005 Nov 14
3
shorewall and broadcast
Hi,
I configured some ha services using heartbeat, I have this on my log:
Nov 14 09:59:06 mail1 heartbeat[3932]: ERROR: Unable to send bcast [-1]
packet: Operation not permitted
Nov 14 09:59:06 mail1 heartbeat[3932]: ERROR: write failure on bcast
bond1.: Operation not permitted
how allow broadcast only on some interfaces with shorewall?
attacched is shorewall status
Thanks
Nicola
2001 Mar 13
3
Invalid ICMP error
To anyone who is well versed with samba,
I am currently setup with ip masquerading with a cable modem connection to
my ISP. I have an error message that continues to show up on my linux box.
It says:
10.58.0.1 sent an invalid ICMP error to a broadcast.
This means it is my linux box sending an invalid packet out through my
modem. This started to happen when I installed samba. So I hav come
2011 Oct 05
1
Performance tuning questions for mail server
...ysrq = 0
kernel.core_uses_pid = 1
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.conf.all.log_martians = 0
net.ipv4.conf.default.log_martians = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
vm.vfs_cache_pressure = 35
vm.nr_hugepages = 512
net.ipv4.tcp_max_syn_backlog = 2048
fs.aio-m...
2013 Jan 04
4
CentOS 6.3 as Firewall/Router
.../conf/all/accept_source_route
#Kill timestamps
echo 0 > /proc/sys/net/ipv4/tcp_timestamps
#Enable SYN Cookies
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
#Kill redirects
echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
#Enable bad error message protection
echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
#Log martians (packets with impossible addresses)
echo 1 > /proc/sys/net/ipv4/conf/all/log_martians
# 3.2 Non-Required proc configuration
#echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter
#echo "1" > /proc/sys/net/ipv4/conf/all/proxy_arp
#echo "1" > /proc/...
2004 Jan 07
11
Random ping jumps
...bytes from fortas.ktu.lt (193.219.160.131): icmp_seq=395 ttl=59 time=31.6 ms
Internet line isn''t loaded up, server load fine. QOS isn''t used, qdiscs default.
I don''t realize what the problem is and even how to debug it. Sysctl config:
net/ipv4/ip_forward = 1
net/ipv4/icmp_ignore_bogus_error_responses = 1
net/ipv4/icmp_echo_ignore_broadcasts = 1
net/ipv4/tcp_syncookies = 1
net/ipv4/tcp_timestamps = 0
net/ipv4/tcp_window_scaling = 0
net/ipv4/tcp_sack = 0
net/ipv4/tcp_fin_timeout = 30
net/ipv4/tcp_keepalive_time = 1800
net/ipv4/tcp_low_latency = 1
Thanks for any thoughts.
______________________...
2003 Feb 03
4
[Bug 40] system hangs, Availability problems, maybe conntrack bug, possible reason here.
https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=40
laforge@netfilter.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
------- Additional Comments From laforge@netfilter.org 2003-02-03 16:49 -------
We haven't seen this
2006 Dec 18
2
creating script for init.d
Hello.
I'm moving from a very old Fedora Core 1 to CentOS 4.4, what a change!!
Three year ago, I wrote some script (network related) and worked very well.
Now, I can put into init.d by means of chkconfig and I restarted the system,
but always hang when executing my srcipt (in my new centos 4.4).
There a manual for making scripts for init.d?
there is some new requirement by which it does not