similar to: Shorewall performance issue

I have just completed the installation of a new firewall running Shorewall 1.4 on Mandrake 9.2 for our campus network. It appears to be running fairly well so far, but is generating significantly more log entries than our previous linux 2.0.x firewall... Our previous firewall enjoyed more than 6 years of 24/7 operation with no downtime before we finally decided it needed more horsepower, and

Is the Shorewall.net down ? Regardless of page I get a "connection refused" - Bill

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

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

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

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

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

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

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

Hi guys I was just wondering if there's already a way to automate the process of updating Windows to be specific XP. My idea is to mimic how a Windows server domain controller can rollout critical update on the entire domain. Can Samba do this? Thanks for any info Jan Ardosa --------------------------------- Yahoo! Messenger - Communicate instantly..."Ping" your friends

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

Hi to all. I recently upgraded to shorewall ver 2.3 from 2.0 so I could explore the multiple ISP/dual default route setup feature of version 2.3, I also upgraded iptables from 1.2 to 1.3 (rpm-based install) but when I tried to start shorewall it terminates and I noticed it''s giving me this error iptables: No chain/target/match by that name ERROR: Command "/sbin/iptables -t mangle -A

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,

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

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

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

Hello: I have a machine running CentOS 5 x86_64. It is running apache httpd and tomcat. For some reason, after running for a few days, web requests stop responding. It happened again this morning. I check the syslog and see a HUGE number of logs like this: OUTPUT IN= OUT=eth0 SRC=[MyIP] DST=[OutsideIP] LEN=532 TOS=0x00 PREC=0x00 TTL=64 ID=52669 DF PROTO=TCP SPT=80 DPT=54697 WINDOW=61

hi all iam newbee, i ve install shorewall 1.3.11 on mandrake 8.2 , i ve eth0 with local ip 192.168.40.40/21 and eth1 203.128.65.22/255.255.255.248 the problem is when my client try connect to internet the page cannot be displayed and while client try ping to internet address reply from 192.168.40.40 destination net unreachable why it can happend ? anyone can give me a hand

Hello, > My server is on Mandrake 10.1 off. > eth0 is WAN with static IP connected 512 DSL > eth1 is LAN. I am little confused about NAT. I have a static IP from ISP I want to do a NAT on eth0. What should I use in shorewall masquerading or static nat ? Thanks Varun

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