similar to: rate limiting sshd connections ?

On a rather full customer web server, I am trying to track down whose web site script is trying to make outbound network connections when they should not be. In /etc/security/audit_control, I added to the flags line dir:/var/audit flags:lo,aa,-nt minfree:5 to log failed network connection. When I try an make an outbound connection to something that is blocked in pf, it seems to sometimes work.

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-03:12 Security Advisory FreeBSD, Inc. Topic: OpenSSH buffer management error Category: core, ports Module: openssh, ports_openssh,

JohnG <mcsjgs@cox.net> wrote: > I run OS X 10.3.7 on a PowerMac MDD G4 on a cable broadband connection. > I have reason to think my system has been tampered with. Security > features in Mac OS X have been left unlocked (Preference Pane - Users) OSX is substantially different from FreeBSD (even without netinfo) despite having some of the same source code. I doubt you'll find

I have a somewhat busy sftp server where the users are all chrooted into their home directory. In order to log all the commands they enter, I have to create a /dev/log entry and hard link in their home directory so that syslog works for their commands Match user * ForceCommand internal-sftp -f local1 -l verbose Everything works, but its a bit of a pain if someone restarts syslogd and forgets

Vitelity seems to be offline to both IP and voice traffic. Is there any place to find out what their status is? Roger Marquis

I am not sure if I had a compromise but I am not sure I wanted some other input. I noticed in this in my daily security run output: pc1 setuid diffs: 19c19 < 365635 -rwsr-xr-x 1 root wheel 204232 Sep 27 21:23:19 2003 /usr/X11R6/bin/xscreensaver --- > 365781 -rwsr-xr-x 1 root wheel 205320 Dec 4 07:55:59 2003 /usr/X11R6/bin/xscreensaver It was the only file listed and I didn't

Other than cranking up logging to debug2, is there a way to better tune logging on a server to see if I am running into max sessions ? On FreeBSD RELENG11 I am periodically seeing connections being refused- 3way handshake not completing or completing and then FINs. Typically, I have a hundred or so connections at one time, but they can bounce up to a few hundred on occasion. Without leaving the

Does anyone know the practicality of this attack ? i.e. is this trivial to do ? ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada

Hi, Just got some of the new Soekris 1401 VPN cards based on the hifn 7955 chip. hifn0 mem 0xe8510000-0xe8517fff,0xe8518000-0xe8519fff,0xe851a000-0xe851afff irq 5 at device 0.0 on pci1 hifn0: Hifn 7955, rev 0, 32KB dram, 64 sessions vs hifn0 mem 0xeb902000-0xeb902fff,0xeb901000-0xeb901fff irq 10 at device 8.0 on pci0 hifn0: Hifn 7951, rev 0, 128KB sram, 193 sessions When it says "n

On 7/24/2017 8:39 PM, Nico Kadel-Garcia wrote: > > Why are the targets of the hardlinks evaporating on rebooting? Is that > a FreeBSD'ism? Its when syslogd stops/starts. The hardlinks need to be recreated for some reason. ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike at sentex.net Providing Internet services since 1994

I wrote a small app that monitors a Back-UPS ES500 UPS via the uhid0 interface. I want to run the daemon with as little privs as possible. gastest# ls -l /dev/uhid0 crw-rw---- 1 root operator 122, 0 Nov 12 05:26 /dev/uhid0 gastest# Is it safe to chmod o+r /dev/uhid0 ? Or is there a better way to drop privs of the daemon yet still be able to read from the device ? All I am doing is

Couple of little things I noticed with a new RELENG_7 AMD64 box (as of yesterday) ifstat from the ports cannot seem to find interfaces for some reason ? It works fine on i386 [ns8]# ifstat -b ifstat: no interfaces to monitor! [ns8]# [ns8]# ifconfig em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500

An interesting paper http://www.acm.org/sigcomm/sigcomm2003/papers/p75-kuzmanovic.pdf ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike

Any chance someone can look at / commit the fix in PR 52349 before 4.9R ? Its a simple fix. As it is to netstat, I dont know of anyone who 'owns' that program to bug other than to make a general plea :-) ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications,

I'm dying to use the 1.0 capability to use more than one mysql user pasword database. However, I'm too chicken to use 1.0-test in a production environment. Does anyone know if there is a planned release date for 1.0? Or can anyone say how risky it is to use 1.0-test?

While trying to speed up nanobsd builds, I mounted /usr/obj on a ramdisk and found my box crashing. Thinking it might be hardware, I tried a separate machine, but with the same results. I have 4G of ram (i386). Am I just running out of some kernel memory ? If so, is there anything I can adjust to prevent this, yet still use mfs in this way ? mdconfig -a -t malloc -s 1800M newfs /dev/md0

FYI >To: misc@openbsd.org >Subject: FreeBSD hiding security stuff >Date: Fri, 04 Mar 2005 03:51:42 -0700 >From: Theo de Raadt <deraadt@cvs.openbsd.org> > >A few FreeBSD developers apparently have found some security issue >of some sort affecting i386 operating systems in some cases. > >They have refused to give us real details. > >A promise is now being

Hallo. I am new to FreeBSD and i wanted to ask something since systems security is what interests me the most. Does freebsd have an automated update system like redhat has ? Also where can i find a list with patches for all local - remote holes and bugs of FreeBSD 4.9 ? Thank you very much for your time ! Best Regards A. Stamatis

Is the version in FreeBSD vulnerable ? http://www.openssh.com/txt/release-4.4 I know version 1 is disabled by default, but if its not, does it impact the daemon ? ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing

Cisco released an advisory about their ntp client and server having a bug http://www.cisco.com/warp/public/707/NTP-pub.shtml Is there a common code base at all that would have relevance to the code in FreeBSD ? I noticed in the COPYRIGHT file cisco has made some contributions. ---Mike -------------------------------------------------------------------- Mike Tancsa,