Ubuntu Security :: Snort Not Starting - ERROR: "/etc/snort/rules/exploit.rules(264) => 'fast_pattern' Does Not Take An Argument"
May 12, 2011
I need assistance with my Snort Installation. I used Bodhi Zazen's Network Intrusion Detection System post and found it easier than the previous time I had done it. I am currently running Ubuntu 10.04 server and Snort 2.8.6.1 with BASE 1.4.5. I followed Bodhi Zazen's instructions and when I tested snort it ended with a Fatal Error due to ERROR: /etc/snort/rules/exploit.rules(264) => 'fast_pattern' does not take an argument
Fatal Error, Quitting.. Here is the entire output once I ran the test command: snort -c /etc/snort/snort.con -T Running in Test mode
[Code]...
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Feb 23, 2011
According to tutorial for installing snort in CentOS, downloaded from CentOS or snort site, I installed snort using:
Code:
./configure -with-mysql-libraries=/usr/lib64/mysql/ --enable-dynamicplugin --enable-ipv6 --enable-zlib
make
make install
[Code].....
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Feb 4, 2011
I am currently running snort as an IDS on the same machine that acts as our gateway. I installed it using sudo apt-get install snort. However, I'd like to make it run as an IPS. Is it possible to convert that currently running snort instance from running as an IDS to an IPS without having to download the snort tar balls and install it? I do not want the tar balls because during updates and upgrades, I'd like the whole OS and installed apps (such as snort) to be upgraded.
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Sep 1, 2011
How to enable ipv6 in snort. I read that it must compilate with --enable-ipv6 but still don't know how?
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Dec 5, 2010
want to set up snort on my F13 home computer.Is there a simple way to do it or do I have to do it the hard way (compiling and stuff) ?I want to use snort for intrusion prevention and detect possible threats from internet.
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Mar 3, 2010
I have installed snort + mysql + acid base, I add some rules into /etc/snort/rules/local.rules to test the alert:
alert icmp 192.168.1.20 any -> 192.16.1.21 any (flags:A;ack:0;msg:"NMap icmp ping")
alert icmp 192.168.1.20 any -> 192.16.1.21 any (content:"abcdefgh";;msg:"ping de windows")
alert icmp 192.168.1.20 any <> 192.16.1.21 any (flags: S; msg: "HOULA SYN Packet!"
After I restart snort and I tied 2 pc by cross cable (192.168.1.20 for windows and the victim is 192.168.1.21 for Linux where the snort is installed), my HOME_NET 192.168.1.21 and the EXTEREL_NET !$HOME_NET. The problem is when I run:
snort -dvi eth0 -c /etc/snort/snort.conf
I see the packet transmitted and received (the received conten "abcdefgh" ), when I stopped snort CTRL+C I don't found any alert in the result!!! Run time prior to being shutdown was 218.523030 seconds.
Packet Wire Totals:
Received: 1346
Analyzed: 1342 (99.703%)
Dropped: 0 (0.000%)
Outstanding: 4 (0.297%) .....
dcerpc2 Preprocessor Statistics
Total sessions: 0
database: Closing connection to database "snort"
database: Closing connection to database "snort"
Snort exiting
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May 10, 2010
I am running Lucid on this machine, but I have had this problem on every machine with Snort. When I awaken the system from suspend or hibernation, snort pegs out one of the CPUs.
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Dec 11, 2010
does anyone know of a good tutorial on how to set up and configure snort 2.8.5.2 on a ubuntu 10.10 system.I have been trying to set up snort and have run into alot of problems setting up the config file and the rules. It works in sniff and packet log mode but i cannot seem to set up IDS mode correctly. There is alot of different info on the net but not much help. There seems to be alot of work involved in setting this up which i do not mind provided i can find the proper documentation to configure the set up.
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Feb 24, 2011
I work in a relatively small organisation of about 30 people (but with a complex network) and we've been looking to move our firewall to Microsoft's Threat Protection Manager on a mostly Windows network. I've been thinking we should have an IDS/IPS inside the firewall and I've been thinking about Snort in NIDS mode but have some basic questions:
1. Can anyone recommend a good web GUI for Snort?
2. Is it advisable to run both on the same machine? (Both from a POV of security and resources.)
3. Would Snort add any real benifit to using TPM?
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Jan 24, 2010
I am running karmic koala with a recent install of snort 2.4.8.1(build 3 and i am at a loss for useful commands in solving an internal problem(within the network).All i have is `"sudo snort -v -i wlan0" on my very short list of useful commands regarding ids.It is doing little to no good in resolving my problem with a network snoop besides showing that it is running;i need some more weight (knowledge) in order to rectify the problem?
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Feb 23, 2011
I have just complied Snort 2.9.0.4 under Ubuntu 10.10 x86_64 installed with all Lamp package.The syntax i used to compile Snort as follows below
[Code]...
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Mar 4, 2009
I am trying to get snort running but I get this with service snortd status:
snort dead but subsys locked
service snortd restart
Stopping snort: [FAILED]
Starting snort: [ OK ]
[root@Fedora tylerm]# tail -f /var/log/messages
Mar 4 05:17:54 Fedora kernel: device eth0 entered promiscuous mode
Mar 4 05:17:54 Fedora kernel: device eth0 left promiscuous mode
Mar 4 05:17:54 Fedora snort[3280]: Initializing daemon mode
Mar 4 05:17:54 Fedora kernel: device eth0 entered promiscuous mode
Mar 4 05:17:54 Fedora snort[3282]: PID path stat checked out ok, PID path set to /var/run/
Mar 4 05:17:54 Fedora snort[3282]: Writing PID "3282" to file "/var/run//snort_eth0.pid"
Mar 4 05:17:54 Fedora snort[3282]: Daemon initialized, signaled parent pid: 3280
Mar 4 05:17:54 Fedora snort[3280]: Daemon parent exiting
Mar 4 05:17:54 Fedora snort[3282]: FATAL ERROR: OpenAlertFile() => fopen() alert file /var/log/snort/alert: Permission denied
Mar 4 05:17:54 Fedora kernel: device eth0 left promiscuous mode
Mar 4 05:18:42 Fedora ntpd[2300]: synchronized to 128.10.19.24, stratum 1
Mar 4 05:18:42 Fedora ntpd[2300]: time reset +0.906114 s
Mar 4 05:18:42 Fedora ntpd[2300]: kernel time sync status change 0001
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Jun 19, 2011
I need to create filename 70-android.rules in the directory /etc/udev/rules.d/I have Adm privileges in my user account properties, but when I use sudo to create this file the Ubuntu OS does not allow me the privilege... I am running Ubuntu 10.04 LTS and here's the Terminal output below:daddy@gatomon-laptop:/etc/udev/rules.d$ sudo cat > 70-android.rulesbash: 70-android.rules: Permission denieddaddy@gatomon-laptop:/etc/udev$ ls -ltotal 8drwxr-xr-x 2 root root 4096 2011-03-16 18:03 rules.d-rw-r--r-- 1 root root 218 2010-04-19 04:30 udev.conf
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Mar 25, 2010
I was wondering whether or not it is possible/advisable to install and run Snort on a single laptop with a wireless router (firewall enabled)? Does Snort require root privileges and are there any other issues one needs to be aware of when installing and running software like this?
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Jul 26, 2010
I'm looking to possibly need to make use of snort and its packet filtering/inspection abilities to help cover for PCI. I've searched Amazon, but nothing really stand out, there is a new one (2007 - Snort Intrusion Detection and Prevention Toolkit), or slightly older ones... Managing Security with Snort & IDS Tools - 2004, Snort Cookbook - 2005, Snort for Dummies - 2004.
Now i'm tempted in just going for the latest one, but i'm completely new to snort so perhaps it needs another book like snort for dummies to get started ;-P
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Jun 15, 2010
I am trying to install snort on debian linux. The following error appears ERROR! Libpcre library not found. Get it from [URL].. I have installed the Libpcre3-dev library but the error is still on.What could I be doing wrong?
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Jun 9, 2010
I googled this question, no relevant results. I don't samba, ssh, or any P2P file sharing. Is udp neccesary for general web browsing/file downloading? What would be the best general ufw rules to set for above conditions and varying ip address? I know how to use the full ufw syntax in command line.
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Mar 29, 2010
I have installed snort and ACIDLAB on Apache＋MySQL. When I view snort alerts on acidlab page, not "sig_name" but "sig_id" is displayed in the column "Signature" like below.
ID Signature Timestamp
-------- --------- -------------------
#0-(1-2) 1 <==?? 2010-03-29 19:30:52
#1-(1-1) 2 <==?? 2010-03-29 19:29:52
Is this an error in the MySQL Database? I dont have any idea about this error.
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May 9, 2010
I have a set of iptables rules generated by Firestarter, and i'm in the process of trying to familiarise myself with iptables itself, but there's one particular rule which is confusing me, perhaps somebody could explain it to me
My INPUT chain reads as follows:
Code:
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT tcp -- cdns01.plus.net anywhere tcp flags:!FIN,SYN,RST,ACK/SYN
ACCEPT udp -- cdns01.plus.net anywhere
ACCEPT tcp -- cdns02.plus.net anywhere tcp flags:!FIN,SYN,RST,ACK/SYN
[Code]...
Given that the firewall is actually blocking packets, it can't be this simple, so what am I missing?
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Sep 12, 2010
I've configured iptables to act as a stateful firewall, but instead of simply rejecting packets I'd like to waste a potenial hackers time by droping any packet that would otherwise be returned. Are my rules sufficient or have I somehow opened myself up to an attacker by trying to write these rules myself?
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Jul 9, 2011
what do the following two commands do? Do they modify the iptables rules in any way?
sudo /sbin/iptables -L -n
sudo /sbin/ip6tables -L -n
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Dec 21, 2010
on a fresh Fedora 2.6.35.9-64.fc14.x86_64 installation I have little trouble with chrony. I love that tool for synchronyzing my clock. SELinux complains, that /usr/sbin/chronyd like to read/write to chronyd.pid. Further I find entries in /var/log/messages, that /var/lib/chrony/drift could not be opened. As I'm completely new to SELinux - I'd like to get some help setting the Security Rules. PS: Should the rules be quite fine from the FC-Repo?
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Jan 27, 2011
I have a caching dns and SNMP ( MRTG ) both on the same server how can I permit dns and snmp traffic in INPUT chain?? I have tried the following:
iptables -A INPUT -p udp --sport 1024:65535 --dport 53 -j ACCEPT
iptables -A INPUT -p udp --sport 53 --dport 1024:65535 -j ACCEPT
iptables -A INPUT -p udp --sport 1024:65535 --dport 161:162 -j ACCEPT
iptables -A INPUT -p udp --sport 161:162 --dport 1024:65535 -j ACCEPT
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Sep 16, 2010
I am trying to program iptable rules for implementing a 1:1 NAT which does the following:
1. Forward all traffic from all ports on a public ip to a private ip
2. Forward traffic from a range of ports (x-->y) on a public ip, to a private ip
I did some google searches for the same, and came up with the following.
iptables -A FORWARD -t filter -o eth0 -m state
state NEW,ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -t filter -i eth0 -m state
state ESTABLISHED,RELATED -j ACCEPT
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Mar 31, 2011
Can someone please let me know strong iptables rules? Below entries are in iptables file.Here Y.Y.Y.Y is another branch public IP.This server acts as gateway+squid server.Further it will serve company's intranet page also using httpd.OS is CentOS 5.0.
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Jan 27, 2011
I am setting my firewall rules using the command iptables.My question is i wanna know what command i can use that list rule 2 and 3 for instance in my table?i want to create rule that: The host is administered using SSH, scp and sftp so allow incoming SSH traffic and securing remote file copying and transferring.
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May 2, 2010
my ufw rules have been loaded and active yet using iptraf i see tcp connections on ports that were never allowed by ufw. can anyone explain this too me does ufw just not work?
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May 30, 2010
When I upgraded to 10.4LT I agreed to something that stopped snort, after days decided to just re-do with new snort version. Used bodhi.zazen's MySql instruction version (which is what I used in the past) Everything went pretty well except for figuring out that I needed to delete all the lib_sfdynamic_preprocessor_example?? files (I also deleted all the lib_sfdynamic_example?? files too just to be safe). Used my original Oinkmaster with updated rules version and downloaded the emerging threats too (as I had in the past) and snort won't run with some of the emerging threat rules because it's lookning for snortsam (fwsam). I read up and snortsam looks like a good idea (if I'm wrong somebody just let me know)
if this seems dumb, but I really don't understand, the snortsam directions are HORRIBLE, the snortsam src looks like a windows file when unpacked with all the .dll files(but they say for all OS's), it builds but you need to copy the binary to /usr/local/bin (what in ubuntu would be a binary?).
the snortsam-patch-2.8.tar.gz won't unpack and the Snort 2.8.6 patch is a file, not a package (have no clue where to put it or what to call it if I got the 2.8.tar.gz to unpack so I could build it)
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Jun 22, 2011
I recently set up a ftp server in my house running a dyndns service so I can get to it from the outside. I called my isp to get some help in setting up the router to forward port 21 from the outside to that box, and in short we had some problems. Long story short, they ended up bypassing the router itself, and now the line running to the box is its own fixed external ip. Naturally I want a pretty darn good iptables setup for this. The box runs proftpd and so far my iptables only accepts local loopback and port-21. (I left port 80 closed as its only purpose is to be a standalone ftp server) But I know there must be a safer rule for port 21, as right now its just wide open. Anyone have any ideas on how to make this a bit safer? Also would that command be fine for any of the linux machines im connecting to it from the outside too?
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Oct 31, 2010
I am running Debian 5 and I'm trying to install and configure SNORT. My first stop is to Snort.org where I check out the directions. They tell me I need Libpcap, PCRE, Libnet and Barnyard. I've looked at the Debian Snort installation guide, and I've noticed that most the documents are really old...
I've actually got libpcap and PCRE installed and now I'm trying to figure out how to get libnet installed. It seems more tricky. I think it's the oldest api I've seen.
I guess my main area of question is if there is a better way of getting Snort up and running... I had a previous version of Linux where I install just Snort and I had network packets streaming across the screen, but that's not very helpful as I need some kind of interface so I know what the hell im looking at.
So should I follow the instructions on Snort.org as well as the "Debian, Snort, Barnyard, BASE, & Oinkmaster Setup Guide"? Or does anyone know a more up-to-date guide for Debian users?
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