Fedora Security :: Set Conditions To See Logs Of All Security Intrusions
Jul 19, 2011
I just putup the fedora15 on my PC. there are several msg coming up from selinux saying permission denied, though I am not doing any administrative activity. the PC being a workstation for reaserch. how can I know the denial is for an security intrusion attempt. how can I set conditions to see the logs of all security intrusions. how can I set exclusive msg-ing from selinux that the denial is for a security intrusion attempt.
Can ossec be run from ubuntu with less notifications to mail only intrusions. i really dont wish to be notified of every single thing that goes on in my system. i only want to be notified of intrusions and anything else that would be of serious concern. can anyone tell me what setting i can do to achieve the goal in mind ?
went through the tutorial on FedoraSolved for securing ssh. I installed denyhosts with yum and then tried to run it with the command line command"sudo /etc/init.d/denyhosts start" but I got the message"Job Failed. See system logs and 'systemctl status' for details [FAILED]"and in the application "services" in the applications menu,t shows an exclamation warning and says that "This unit has failed"
I cannot find one single UFW event anywhere. I have researched this and see that others have trouble finding these logs too. I have looked in every /var/log there is and I can't find one event. I have UFW enabled, default deny and logging set to medium from a previous logging low(in hopes this would create more events to be seen). In terminal, UFW is shown as active. I have been using Ubuntu for more than a year now and I recall seeing UFW events with every session in some /var/logs in Ubuntu 9.04 - I'm running 9.10 now. I have also tried looking throughout the system files and have found nothing. Is UFW not working properly or could I just not be experiencing any firewall events(not likely)?
If anyone knows where does ZEIGEIST put its logs. Is it in my home folder, or is it somewhere else. I have my home folder enrypted and this is really not very secure if someone can see those logs...So. Does ZEITGEIST put logs in my HOME folder or not?
I have in my hands a bunch of samba logs, about 24 different files and I was wondering if there was a tool that would go through them and organize them into something readable.I had a gander at Sawmill
Iam looking security specific event ID on Linux .hear are thousnds of event ID in Microsoft Windows/XP and VISTA etc. Similar way looking for Linux,unix ,Solaries,AIX etc event ID. I would to correlate and implement with Arcsight.
CentOS 5.6 Server patched to latest, multiple name-based apache virtual hosts. SELinux OFF Everything was working fine until the other day. I've been making quite a lot of changes so it may well be something I've done, but I can't find out what! Last night I got the following in my logwatch : -
Requests with error response codes 404 Not Found /admin/phpmyadmin/scripts/setup.php: 1 Time(s) /admin/pma/scripts/setup.php: 1 Time(s) /admin/scripts/setup.php: 1 Time(s) /db/scripts/setup.php: 1 Time(s) /dbadmin/scripts/setup.php: 1 Time(s) [Code]...
The problem is that NONE of my logs, secure, httpd, messages, NONE of them, show any trace of these hacking attempts. They used to show up in secure and apache error logs, but no longer.
I have a (headless) Debian (Linux debian 2.6.26-2-486) system running on an old Pentium machine in our home network. I use it as a Samba share, among other things. I recently noticed some Samba log files that I cannot explain the origin of. In /var/log/samba there are a couple of files like this one:/var/log/samba/log.istvan (Note: there is no machine named 'istvan' in my local network)
Code: [2011/01/04 21:15:34, 1] smbd/service.c:make_connection_snum(1198) istvan (::ffff:78.92.155.185) connect to service boeken initially as user nobody
These files seem to contain browsing history: ~/.mozilla/firefox/xxxxx.default/cookies.sqlite ~/.mozilla/firefox/xxxxx.default/formhistory.sqlite ~/.mozilla/firefox/xxxxx.default/downloads.sqlite ~/.mozilla/firefox/xxxxx.default/places.sqlite ~/.mozilla/firefox/xxxxx.default/places.sqlite-journal ~/.mozilla/firefox/xxxxx.default/Cache/
Therefore I have cleared these files using an erasing program. I am wondering if there are other locations where such log files are stored for Internet browsing. I have looked in the /var/log directory and cannot see anything - for example doing a grep on http:// after browsing in Firefox does not reveal anything obvious.
whether iptables logs can be set to automatically resolve IP addresses? I am running the firewall on a network with DDNS/DHCP, and this ability would really help quickly identify hosts with suspect traffic.Failing this, I guess the simplest solution will be to simply set static addresses!
Does anyone know of any software that can monitor the Apache logs for certain phrases or keywords then send an alert when found? For example I know an attempt to hack has been made when I see log entries like this....
/admin/ /admin/phpadmin/ /phpadmin/
But by the time I see it, the attempt has long since failed or succeeded. What I need is a way for my server to alert me WHILE someone is entering these phrases. I realize there may be a "hit" to performance but my server is not that busy anyway (except for hackers).
In an effort to learn more about firewalls and iptables I have left behind gui set-up tools and have setup a firewall using iptables that logs to its own file. The firewall is as follows:
Code: *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] :TCP - [0:0]
Has anybody else seen this kind of attack? I see those messages on 2 exim mailservers. Looks as if someone sends a 50MB big mail header :S What is their goal except from increasing my traffic?
Code: 2011-02-12 07:48:53 SMTP protocol synchronization error (input sent without waiting for greeting): rejected connection from H=ns33.medialook.net [91.121.108.5] input="GET / HTTP/1.1 Accept: */* Accept-Language: en-us
I am trying to get OpenLDAP to authenticate user logins, but running around in circles. Are there any logs produced by either client and/or server that would indicate possible reasons why it was unable to login as a user?Below is an explanation, any ideas would be appreciated, as I think everything is setup as per the various articles on using LDAP.
I have a CentOS 5.5 OpenLDAP server, and several others, some host services, some are file shares (samba).So far I have been able to successfully configure OpenLDAP to carry out all the ldap* commands from both the local server and from any of the remote servers, either via non-ssl or ssl connections. However, as soon as I try connecting any services up to it, it doesn't play ball.Back to basics, having cleared off all previous attempts at this from all machines, I have gone through the following:
Installed OpenLDAP server/client on host (plus nss_ldap). Configured /etc/openldap/slapd.conf (see below) Configured /etc/openldap/ldap.conf (see below)
I have a batch job which logs in to the server every 10 minutes via windows rsh. The job checks to see is there are any files that need to be send via a EDI serverto a supplier.The following logwatch report is swamped with the login messages and would like to either suppress the logging in PAM? or suppress the entry in the logwatch report?But I still want logging id the username is not username1.Connections (secure-log) Begin rshd[1754]: pam_rhosts_auth(rsh:auth): allowed to username1@10.0.0.1 as myedi
I am searching that how i can configure syslogs/rsyslog to receive third party tools or softwares logs. For example i have a program that generates logs like when it is started and logs about its services, alerts if there are any alarms etc. I want to forward these logs using syslogs/rsyslog. Is their any possibility how can i achieve that
I have my router configured so that it drops outgoing telnet connections (and other protocols I don't use). It's a 2wire gateway. 192.168.1.65 is the internal IP of my ubuntu box.I'm trying to figure out what normal network traffic looks like and whether I should be worried by this log entry. At the time this happened I was testing out TOR (just navigating to a few sites (dell, ubuntu forums, etc.) nothing all that interesting.)
this is the allert i got:Code:Summary:Your system may be seriously compromised! /usr/sbin/NetworkManager tried to loada kernel module.Detailed Description:SELinux has prevented NetworkManager from loading a kernel module. All confinedprograms that need to load kernel modules should have already had policy writtenfor them. If a compromised application tries to modify the kernel this AVC willbe generated. This is a serious issue.Your system may very well be compromised.Allowing Access:Contact your security administrator and report this issue.Additional Information:
I'm just curious as to what security measure's I should be taking to make my box a little less vulnerable? I'm still experimenting/playing with Linux, use the net, IM, download this and that and was wondering how secure fedora 10 was out of the box?
During a recent install I made the leap to encryption,but /boot must remain unencrypted.Is there really any legitimate security risk to having an unencrypted /boot partition? I mean basically someone can just see what kernel you're running which they could see during boot anyways right? Oh I and keep all my financial documents in /boot/finances/ (haha ok not really, but I am serious about the first part).
If I leave the computer running for a few minutes without doing anything on it, this screen appears demanding that I enter my password, otherwise I can't get back to Fedora. I understand the necessity for this security feature in a work environment, but I'm just a home user and this security screen is just a nagging problem I don't know how to get rid of.
Firefox 3.5 has a critical java script vulnerability as noted in the recent news. I had to manually update to 3.5.1 using the mozilla tarball because there's still no Firefox 3.5.1 in Fedora Updates or even Fedora Updates Testing repositories. Is this normal? I didn't want to resort to using the mozilla one because now I can't use flash (my system is 64 bit and mozilla only seems to offer a 32bit tar file of Firefox) and having two Firefoxs means dealing with the ProfileManager, separate bookmarks and so on.
I'm trying to find out if I'm just looking in the wrong place, I tried the normal mirrors for "updates" for Fedora 11 and then updates-testing and also the baseurl for "updates" to get rid of the mirror update delay. None of them seem to have 3.5.1 ?
