Date: Fri, 22 Jun 2007 21:01:21 +0300 From: ExTaZyTi <extazyti@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Network Problem in FreeBSD 6.2-RELEASE-p5 Message-ID: <468d29450706221101w6572c8c1h6f8b5a30c9331437@mail.gmail.com> In-Reply-To: <44hcp0dqe8.fsf@be-well.ilk.org> References: <468d29450706210715m31c112acs1936dabf1b287d82@mail.gmail.com> <44hcp0dqe8.fsf@be-well.ilk.org>
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Is the FreeBSD machine performing NAT for the Windows box? extazyti: yes with PF firewall. (But I don't have this problem before re-build my world+kernel (my last fbsd was fbsd6.2-STABLE. But this problem exist again in fbsd6.2-STABLE when I have build option ot drop TCP+SYN and have some bug..I donk know what exactly)) Are you saying that this is a second problem? extazyti: YES. because I think limmiting my connectins is normal when I have "net.inet.tcp.blackhole=2" but Now I haven't this sysctl option and this is problem again. How are you doing the scan, and how do you know the ports are not really open? extazyti: I use PortScan with a delay MS - 20 (He sends TCP4-sockets) and ports It's not really open because there is no program to open random ports with this values and I use the netstat command. Aslo this problem was again before time when I have bugged again my kernel with TCP_DROP SYN+FIN in my kernel. Which sysctl? extazyti: ALL, I put "#" before all texts in my sysctl.conf and reboot my system. Are you sure that the sysctl value changed? extazyti: I think yes..after restart and I changed special net.inet.tcp.blackhole to "0". Did you look at it after changing it to make sure it really shows up as different? extazyti: No. But I think reboot changes to default this options when have "#" before all texts in /etc/sysctl.conf 2007/6/22, Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>: > > [lists trimmed to just -questions] > > ExTaZyTi <extazyti@gmail.com> writes: > > > I have a serious problem with my network. > > I have connected 2 PC's, 1 - FreeBSD, 2 - Windows XP. > > > > The problem is follow - My FreeBSD limmiting connections , I cannot open > > more 224 TCP4-Sockets in my Windows Box. > > When I downloading torrent file, I cannot create more connections to the > > web, and while this time I can't open for example - web sites. > > Is the FreeBSD machine performing NAT for the Windows box? > > > Tow problem who worry myself is when I scan a my freebsd box or other > > "server" for open ports its FAKE show me: 81 82 ,83 ,465,463 and other > ports > > open.. but It's FAKE .. it's not really open.. > > Are you saying that this is a second problem? > > How are you doing the scan, and how do you know the ports are not > really open? > > > I Cleared my sysctl, and test, cleared my firewall and test, re-build my > > kernel with any options changed and test again.. Just don't Work :(( > > Which sysctl? > > > I have use PF firewall and FreeBSD 6.2-RELEASE-p5. > > > > I Think this problem is from "net.inet.tcp.blackhole=2" in my sysctl > because > > it's work before i do sysctl -w net.inet.tcp.blackhole=2.. > > but when back this option to value = 0 this problem is stay there.. and > no > > restarts or re-build my kernel can fix this..or maybe be wrong to > > this supposition. Sorry for my english. > > Are you sure that the sysctl value changed? > Did you look at it after changing it to make sure it really shows up > as different? >
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