similar to: Security warning with sshd

Hi, I am using IPFW on FreeBSD 4.11 I am facing two problems: - SSH sessions timeout after a while - When I run "/sbin/ipfw -q -f flush" in the rules script all connection get reset (and I am thrown out of the box). Is this standard functioning of ipfw or do I need to change any configuration? Thanks, Siddhartha

I''m trying to set up switchtower, following the info in the Manual, but am getting this error when I run "rake remote_exec ACTION=setup": servers: ["cantona.dnswatchdog.com"] /usr/lib/ruby/gems/1.8/gems/net-ssh-1.0.3/lib/net/ssh/transport/packet-stream.rb:203:in `sysread'': bignum too big to convert into `long'' (RangeError) from

Hello, My company has been asked to help with the upgrade of several Freebsd systems that are pretty old. The customer is running a file server samba also running apache running FBSD 4.2, he wants to upgrade using cvsup & the make buildworld procedure to upgrade to 5.x. Im very familier with the make buildworld procedure however there have been significant changes between 4.2 & 5.x so is

er.... How to block Arp PAckages? []s

Howyd all? Seems that I have been routed. Possibly by a physical B&E, but who knows? Probably some of you do.... anyways, some politically sensitive email was deleted from a user account and the line low -tr & inserted into my .xinitrc . Duncan (Dhu) Campbell

Hi all again, I must add, there are no log entries after June 9, 2004. "LKM" message first apeared June 8, 2004, after this day, there is nothing in /var/messages, /var/security ..... How could I look for suspicious LKM module ? How could I find it, if the machine is hacked and I can not believe "ls", "find" etc. commands ? Peter Rosa

Hello list. I would like to get your opinion on what is a safe multi-user environment. The scenario: We would like to offer to some customers of ours some sort of network backup/archive. They would put daily or weekly backups from their local machine on our server using rsync and SSH. Therefore, they all have a user account on our server. However, we must ensure that they would absolutely not be

that only works when you are presuming that the host was not hacked already because i would clear those logs when i hacked a system :) but indeed it's a try, If you remain unsure, it is best to reinstall the system to be sure that a fresh and newly updated (yeah update it when installed :)) system is not compromised at that time.. loads of work, but it gives you some relief to know that

Hi there, Is there some way to configure ipfw to do traffic normalizing ("scrubbing", as in ipf for OpenBSD)? Is there any tool to do it for FreeBSD firewalling? I've heard that ipf was ported on current, anything else? TIA, /Dorin. __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools

The man page gives this example, however, when I attempt to use it, it seems to block the whole set? Could someone tell me what's going wrong here please. Thanks heaps.. This works, ${fwcmd} add deny log all from any to 203.1.96.1 in via ${oif} This blocks the whole IP block, not just the list? ${fwcmd} add deny log all from any to 203.1.96.0/24{2,6-25,27-154,156-19

Hi, during some big discussions in the last monts on various lists, one of the problems was that some people would like to use freebsd-update but can't as they are using a custom kernel. With all the kernel modules we provide, the need for a custom kernel should be small, but on the other hand, we do not provide a small kernel-skeleton where you can load just the modules you need.

Hi. We just opened a gaming center and have chosen to run a FreeBsd box for our firewall. IPFW is configured at it's very basic running natd through rl0 and allowing any to any connections from the lan to the outer world. Natd controls access to the lan. We have a 6.0 mb/s ADSL net connection for all the gaming clients to use, however if a gamer starts downloading a file, that file

550.ipfwlimit check in /etc/periodic/security takes into account only global/default verbosity limit and does not account for a specific logging limit set for a particular rule e.g.: $ ipfw -a l | fgrep log 65000 *521* 41764 deny log logamount *1000* ip from any to any $ sysctl -n net.inet.ip.fw.verbose_limit *100* >From security run output: ipfw log limit reached: 65000 519

Hi security@ list, In my self written, large ipfw rule set, I had something that passed http to allow me to browse most but not all remote sites. For years I assumed the few sites I had difficulty with were cases pppoed MTU != 1500, from not having installed tcpmssd on my 4.*-RELEASE, but then running 6.1-RELEASE I realised that wasn't the problem. http://www.web.de Still failed, &

I'm not a master of the internet RFCs, but I do believe icmp messages have different types. Now to enable traceroute for IPFW, I might put in a rule like this: ipfw add pass icmp from any to me However, how would I make a rule to limit icmp messages to just those used by traceroute? Can the messages be distinguished as such? A dynamic rule that exists only for the duration of a traceroute

hi, it''d be very useful to add some kind of "log everything" option to shorewall. currently the logging is useful if you know what you would like to log. but if you don''t know than it''s a problem... another problem that currently it''s not possible to log the nat table. at least i can''t find any way (can''t add logging into masq and

Hi, first i must tell you, that my english is not the best, i hav learned my english from manpages and documentation. Please excuse this. I have setted up a Box w/FreeBSD 4.7-RELEASE for connecting to the w3 through an DSL/ATM-Connection. Now i know the stateful handling of firewall-rules under linux with iptables.In the second i have understand that FreeBSD comes with the netfilter-extensions.

Hi all, I need some guidance to get my problem fixed. I believe there is an issue with the ''nth'' patch from the patch-o-matic, which is labeled as status ''works''. I have tunnels back and forth across the internet, using ''nth'' to balance packets between different public networks (over the tunnels). I need to access some networks over two

https://bugzilla.netfilter.org/show_bug.cgi?id=1220 Bug ID: 1220 Summary: Reverse path filtering using "fib" needs better documentation Product: nftables Version: unspecified Hardware: All OS: All Status: NEW Severity: minor Priority: P5 Component: nft

Hi! I ran into a problem with programs exec:ed by print/acroread8 picking up Linux libraries and thus failed to run. This includes the print program in the print dialogue and the browser configured in edit/preferences/internet. The reason is that the acroread launch script sets LD_LIBRARY_PATH which is propagated to its childs. See this PR: