Displaying 20 results from an estimated 2000 matches similar to: "Firewall sizing guidelines?"
2004 Nov 27
6
Finally making some progress
I *think* we are finally making some progress in tracking our elusive
performance problems. After employing a second 10Mb link from our ISP,
along with another firewall box and proxy, we were able to determine the
problem *is* our firewall. We don''t know exactly why yet, but our sporadic
slow web access seems to have gone away since swapping a new firewall
in this morning.
The
2004 Aug 24
14
Shorewall response time slowing
Ok here are all the information the website said I should include first:
[root@residents root]# shorewall version
1.4.8
[root@residents root]# ip addr show
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
2007 Feb 23
3
Conntrack table full and Heavy p2p loaded traffic manager ...
Hello
I''ve setuped a bridge with l7-filter and ipp2p. We have every day + or
- between 10Mbits and 30 Mbits P2P traffic from + or - 450 customers.
When traffic increase. I''ve got this kind of error message :
Feb 23 14:26:19 gestor1 kernel: printk: 38 messages suppressed.
Feb 23 14:26:19 gestor1 kernel: ip_conntrack: table full, dropping packet.
The server is celeron
2010 Jan 24
8
ip conntrack table full
xen-3.0.3-94.el5_4.2
2.6.18-164.6.1.el5xen
RHEL5.4 x86_64
I''ve got a dom0 that does nothing but have a DomU created. The DomU gets
plenty of load. Over time, the dom0''s ipconntrack table fills up but not
the DomU. Once it gets full I can restart iptables and it''s fine.
The strange thing is this only happens on hosts I have provided (hardware
and hosting) from one
2013 Jun 26
5
[Bug 830] New: 關於iptables影響服務器性能事宜
https://bugzilla.netfilter.org/show_bug.cgi?id=830
Summary: ??iptables?????????
Product: iptables
Version: unspecified
Platform: All
OS/Version: RedHat Linux
Status: NEW
Severity: major
Priority: P5
Component: iptables
AssignedTo: netfilter-buglog at lists.netfilter.org
ReportedBy: higkoohk
2004 Nov 20
5
Differences in masq from 1.4 -> 2.0?
In the panic of replacing our firewall(s) earlier in the week, we ended up
moving our original shorewall 1.4 config onto a machine with 2.0.10
already installed, overwriting all the 2.0.10 config files.
Most things seem to work fine, except for our masq entries. I''ve examined
the default 2.0.10 files compared with our 1.4 files, and can''t spot the
problem. What am I missing?
2007 Jun 12
3
ip_conntrack table filling up, dropping packets
Hi, my ip_conntrack table is filling up and now my server is dropping
packets. I'm running CentOS release 4.4 (Final) on a fairly busy
webserver. The table is full of various connections, including a lot
of "ESTABLISHED" tcp connections from my webserver (the src is my
webserver ip), and some other random connections to my webserver, and
many "ASSURED" connections. So why
2007 Mar 05
4
Router dropping packets?
Hey guys,
I have several Linux routers in place at high-usage
locations (student apartment complexes). I''m having
trouble with some of the routers which use 6Mbit DSL
lines as their Internet feed. The routers use PPPoE
and perform NAT.
During peak usage periods, the routers are dropping
alot of packets. I''m lead to believe this is because
there are too many active
2004 Nov 27
1
Performance problems on Intel E100 (Shawn Wright)
>From: "Shawn Wright" <swright@sls.bc.ca>
>Subject: [Shorewall-users] Finally making some progress
>I *think* we are finally making some progress in tracking our elusive
>performance problems. After employing a second 10Mb link from our ISP,
>along with another firewall box and proxy, we were able to determine the
>problem *is* our firewall. We don''t
2008 Apr 18
3
ip_conntrack: table full, dropping packet.
I was trying to do what the article at
http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.performance.html#conntrack_filling_tables
<http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.performance.html#conntrack_filling_tables%3C/blockquote%3E%3C/div%3E>
suggested
My iptables rules are
------------------------------------------------------------------------
#that's what the
2004 Nov 05
1
ip_conntrack problem
I''ve been having all sorts of problems the last few days with my
connection slowing down and then stopping working.
Rebooting the router box always fixes it for a while.
When I couldn''t hit any pages this morning, and couldn''t even ssh into
the router, I dug around a little.
When I did a dmesg on the router, there were a bunch of errors saying:
ip_conntrack: table full,
2009 Aug 30
4
Multiple Network Cards + Multiple Bridges on debian lenny
Hi all,
I''m searching for a tutorial how to setup multiple network cards with
xen network bridge setup in debian lenny. My problem is, bridges seams
only to work if i put an ip adress in dom0 to them.
Thanks,
Alex
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
2003 Aug 19
1
[Bug 105] Connection tracking table full, no new connections accepted
https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=105
laforge@netfilter.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |LATER
------- Additional Comments From
2011 May 13
2
Modify Parameters at system boot
Hi all.
i'm trying to modify some parameters but when system reboots it doesn't
load. For the sysctl if I run sysctl -p then it changes
/etc/sysctl.conf
net.ipv4.netfilter.ip_conntrack_max = 1048576
/etc/modprobe.conf
options ip_conntrack hashsize=131072
after reboot results
cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max
65536
cat
2003 Jun 24
3
[Bug 105] Connection tracking table full, no new connections accepted
https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=105
------- Additional Comments From laforge@netfilter.org 2003-06-24 20:00 -------
Did you try to enlarge your connection tracking table? (Pleae read the FAQ)
Do the /proc/net/ip_conntrack entries look plausible, or are there lots of
entries with unreasonably high timeout?
------- You are receiving this mail because: -------
2005 Mar 10
1
Shorewall performance issue
Hi to all. I have a shorewall ver 2.0.13 running in Fedora Core 3, the machine has dual cpu, 1gb of ram, and 40GB of hard disk space. The machine runs shorewall only and had tested it to openvpn but most of the time just shorewall.
The problem, there were instances when internet traffic coming from the local network just halts, I needed to restart shorewall in order the traffic to flow again.
2004 Nov 17
9
Serious stability issues
We have encountered a number of problems with our firewall recently,
and the past 24 hours have left me quite concerned. Here is what we are
seeing:
1. Original firewall, a PentiumPro/200 with 96Mb RAM, serving approx
500 client PCs for a 10Mb internet connection. Running Mandrake 9.2, we
began seeing severe swapping a few weeks, with kernel mem usage
exceeding 200Mb. Given an ip_conntrack
2005 May 16
3
ip_conntrack limit --- torrent , DC++ , eMule
Hi all,
i need advice how can i limit ip_conntrack per IP.
clients of network that i support often uses torrent , DC++ , eMule
clients and i have lost packages because they open too many ports.
i have traffic control limits but this obviously isn''t enough
Any advance how to prevent server from this kind problems will be welcome.
Best regards
Emil
2004 Nov 24
2
Still struggling with performance issues
It''s now been over a week, and we are nearly at wits end trying
to track down our performance issues here. We now have a
P3/667 (single CPU! SMP was definitely the source of previous
lockups) with 256Mb RAM. It is running along with a load avg
of less than 0.1 even at peak times. Max ip_conntrack is
around 1500-2000. Sounds fine, but, we have also tried 3
different squid proxies (2
2006 Apr 12
2
DCC transfers don't work, but IRC works
Hi!
Already searched for it and asked in IRC channel but all replies talk
about ip_conntrack_irc and ip_nat_irc.
I have a rule in 'NEW' section of 'shorewall/rules' to irc:
ACCEPT fw net tcp 6667 #IRC
and 'lsmod|grep irc' shows:
ip_nat_irc 3648 0
ip_nat 22572 8 [...]
ip_conntrack_irc