Security covers a wide-ranging set of topics including Users, Permissions, Authentication, Authorisation, Upgrades, Firewalling, Hardening, etc.
5
votes
1answer
341 views
Unknown Folder on System root /.rpmdb
Can somebody explain what is /.rpmdb folder for? Which Application is using it?
2
votes
1answer
130 views
Does Linux support capturing tcp packets without being super user?
Is it possible to capture packets without superuser?
This is what I see in the wikipedia article:
In some Unix-like operating systems, a user must have superuser privileges to use tcpdump ...
0
votes
0answers
125 views
How do i install the latest version of IcedTea 2.3.1 on 12.04?
i've recently read that IcedTea 2.3.1 patched up the recent Java zero-day vulnerabilities and i was wondering how to install it in Ubuntu 12.04, and please keep it simple.
3
votes
1answer
112 views
Is file permission secured when it transferred from Ubuntu to Windows?
I am having 9GB text file which is encrypted .
This file contains some confidential data . Which is on my system(Ubuntu) and my external HDD (ntfs) . This file get daily updated and then encrypted . ...
9
votes
2answers
4k views
What to do regarding BackDoor.Wirenet.1
What precautions should one take in prevention of attack by trojan BackDoor.Wirenet.1?
Blocking all communications with 212.7.208.65 should be sufficient? If so, how to do it?
9
votes
3answers
2k views
Does java security flaw affects ubuntu also?
There are rumors about an actual java security problem. The BSI advises people to deactivate java plugins version 7 and prior in all kind of OS, even in linux. Does this mean, I should deactivate ...
4
votes
3answers
4k views
Remove or disable java due to the security issue
According to the news there's java security hole that is still not fixed. How can Ubuntu users protect their PC? I've got gnome-shell installed and as far as I understand it depends on java. Which ...
1
vote
1answer
264 views
Store the passphrase of encrypted disk in /etc/crypttab encrypted
I'm wondering, if I can store the passphrase of an encrypted disk in /etc/crypttab encrypted - and only possible to decrypt that by that OS, where I created. Is it possible?
(because, I want auto ...
3
votes
2answers
504 views
Precautions during SSH [duplicate]
Possible Duplicate:
How can I audit users and access attempts to SSH on my server?
I recently had to give away my Ubuntu 12.10 root password to one of my friends so that he could SSH into ...
0
votes
0answers
92 views
PHP safe_mode is a pain, looking for advice (Ubuntu 12.04 server, public webserver)
Maybe askUbuntu isn't the right forum or I haven't provided the right search query but I haven't seen anything in my searching of askUbuntu on PHP safe_mode. I get lots of Windows Safe Mode and Ubuntu ...
1
vote
1answer
1k views
apt lists in /var/lib/apt/lists overwritten with html page for Starbucks wifi terms
I sat down at Starbucks this afternoon to do some work (Ubuntu 12.04 Desktop x64), and got the red-circle-with-white-line error icon in the systray notifying of a package error. Also, apt, aptitude, ...
4
votes
1answer
180 views
How to check the Security of system?
Is there any antivirus or any sort of scanner available for Linux so that one can insure the security of system and is it so that Ubuntu is hack-proof?
If not than what are the basic steps which a ...
1
vote
1answer
157 views
Is there a good apparmor profile for VirtualBox?
Is there any apparmor profile for VirtualBox that works both in normal and guest accounts for 12.04?
Where can I get it? Or maybe its code?
Is there any other way to protect my VirtualBox from ...
3
votes
3answers
741 views
Trojan in Ubuntu? DigiNotar
On Wednesday, I installed an old copy of Ubuntu 10.04LTS onto a pristine desktop PC that I built w/ brand new hardware--DSL modem, too--except for the CPU. Then, I downloaded Ubuntu 12.04 from ...
0
votes
2answers
234 views
Anti phishing software?
Is there an anti phishing software in ubuntu which may even rate websites while searching and surfing ,something like avg secure search in windows or the software u get with bitdefender which puts a ...
1
vote
1answer
100 views
Enabled root password and have System Policy and sudo problem
I enabled the root password a while back. But not three days ago. I'm using Ubuntu 12.04 with latest updates. My laptop is Vostro 3500
For about three day ago, I saw the symptoms. And those are,
...
3
votes
0answers
300 views
Is there a guide for using GRSecurity and Precisew/ PAX?
I'd like to know if there is a guide of some kind for (successfully) configuring, compiling and installing GRSecurity w/PAX etc. in Precise?
I basically am trying to build my own custom release ...
3
votes
1answer
368 views
why samba share files are not able to access by some user for some time?
I'm running samba on Ubuntu Server 10.04 LTS, I've some folders on samba share and created some user to access it, but suddenly some of the user are not able to access it for a certain time only.
For ...
23
votes
2answers
4k views
How do I keep track of failed SSH log-in attempts?
I'd like to see if somebody has been trying to log-in by brute-force into my Ubuntu 12.04 server over SSH. How can I see if such activities have been taking place?
0
votes
3answers
155 views
Can someone please compare the safety issues between Ubuntu and windows OS? [duplicate]
Possible Duplicate:
Why is Ubuntu more secure than Windows or Mac OS X?
I am a new user. I installed this on and older PC using XP. Can someone please compare the safety issues between ...
5
votes
2answers
795 views
Is Chromium in Ubuntu's repository safe to use since it's so out of date?
Is Ubuntu Chromium still safe to use since its so out of date?
3
votes
3answers
884 views
“Successful su for user by root” - suspicious entries in my /var/log/auth.log?
This post on reddit made me go through my logs. That's when I discovered the following entries which appeared on two non-subsequent days. "user" is my user account.
Aug 4 22:50:37 UbuntuSystem sudo: ...
0
votes
1answer
119 views
How to secure terminal logout?
While reading about bashrc, I ran into the following fundamental problem of terminal-only machines:
If I run malicious software with a restricted account, it could edit my ".bashrc" file and set an ...
3
votes
1answer
2k views
How to install pentesting tools?
I am learning pentesting. I don't want to install BackTrack as my main OS. Instead, I'd like to install the relevant tools on my Ubuntu 12.04 system. My understanding is that it is possible to install ...
1
vote
0answers
161 views
How to turn on profile for restricting lightdm guest session in normal default account?
I know this profile is enabled by default on guest account.
But how can I enabled that same profile (apparmor) on the account where I have to put my administrator password, the one that is created ...
0
votes
1answer
320 views
Ubuntu 12.04 (Lubuntu), Manage Networks, Panel Icon, Incoming Traffic. Why?
Manage Networks, Panel Icon, it shows constant incoming traffic, not outgoing, just incoming packets, but I am not surfing internet, or doing any updates, I am basically not using internet, so why I ...
1
vote
1answer
977 views
Ubuntu 12.04 www.grc.com ports, all CLOSED, but one port 646 LDP Hidden color green?
I did scan of my computer ports using deafult Ubuntu 12.04 installation, at www.grc.com, all of them are in color gray CLOSED, except for one:
Port 646 LDP (Port Authority Database) its HIDDEN state ...
0
votes
1answer
37 views
Can I encrypt the OS for boot only?
I have a LAMP system running (of an SD card on small computer) that monitors some arbitrary data. I return the data as JSON from the page so that it can be used in whatever reason its fit for.
I ...
2
votes
1answer
114 views
Security enhancements, prevent mounting /dev/sdb1 [closed]
Overview
I am running Ubuntu 12.04 - 64bit - Gnome3 as my preferred Operating System at work. However after recently taking time off, I return to my desk finding my machine was broken in to (I am ...
3
votes
2answers
2k views
How do I check if someone accessed my computer?
I need to check the list of files accessed in my computer (ex: yesterday on particular time). Is it possible?
Or
I need to check whether anybody accessed my computer (when I left it unlocked) or ...
3
votes
1answer
167 views
Where can I get free apparmor profiles?
Apparmor profiles: Security tight paranoic hardened very secure hard to hack, %100 bullet proof (last one a joke lol)
Maybe a link.
0
votes
0answers
53 views
Can I use VMware Player in the default guest account without errors?
I use Ubuntu as Host and xp as guest
When I try to run my vmware virtual machine OS XP in Ubuntu 12.04 guest account, it gives me an error it cant load the OS, something like APLICATION IS BUSY.
Any ...
1
vote
1answer
1k views
How to use sudo command in the default guest account?
How can I use sudo command from terminal in the default Ubuntu 12.04 guest account, in order to connect to vpn client and service. (OpenVPN+TrustConnect+Comodo)
I know it has been disable by ...
5
votes
4answers
875 views
Is installing wine in Ubuntu safe? [duplicate]
Possible Duplicate:
Risks/Disadvantages associated with Wine
According to many articles like this one, it says that windows is more vulnerable to virus.
I recently installed wine on my ...
1
vote
1answer
978 views
Xubuntu Ad-hoc network with WPA
My laptop is connected to the internet by ethernet cable, and in Ubuntu I was able to setup a wireless network that my phone could connect to (I think it was Network Settings, Wireless, then there was ...
4
votes
0answers
153 views
Asking for a SSTP connecting configuration file for using SSTP command line [closed]
Using sstp with Network Manager and DNScrypt stopped working on Ubuntu 12.04
DNSCrypt and Network manager and using Unblockvpn's SSTP -
http://sourceforge.net/projects/sstp-client/
Connects the ...
0
votes
0answers
230 views
Using Zentyal as a gateway/proxy server
Is Zentyal the best software to use for a gateway/proxy server to monitor internet usage on a network and restrict access to certain sites? Does anyone know of anything better. I am looking for a ...
0
votes
1answer
431 views
xtables-addon installation failed
I have a server with ubuntu 12.04 and when I try to install xtables-addon with this command module-assistant auto-install xtables-addons-source I get this error
Bad luck, the kernel headers for the ...
2
votes
1answer
108 views
How do I make a proxy server? [duplicate]
Possible Duplicate:
Where are the system-wide proxy server settings?
How do I make a proxy server that allows other computers to access my internet connection through the proxy, but will ...
1
vote
3answers
148 views
Who created files in “/proc” with my username?
I just learned about file security, user & group, etc.
And I appreciate a lot about the elegance of the filesystem of linux.
My username is lyg, and I found there are some files with owner lyg in ...
2
votes
1answer
157 views
Security measures regarding specifically online shopping and banking
I've read the community wiki and some questions made here in Askubuntu about security measures on Ubuntu, but I would like to focus and narrow this topic to the security of online money transactions, ...
4
votes
1answer
163 views
What security policies exist in place for packages and scripts?
I did have used Microsoft Windows since Windows 98 to Windows 7. I have found lots of security vulnerabilities by myself about how viruses, worms, spyware etc. compromises the system.
Microsoft ...
0
votes
1answer
438 views
How to do quarantine or delete with ClamAV?
I scanned the home directory using ClamAV which found 13 threats.
The list was also displayed, but when I tried to delete or quarantine files, it did not proceed. Any ideas?
3
votes
3answers
420 views
Is there a way to lock my browser with a password?
It would be OK if it was only with my login password, but I would like to lock both midori and Firefox so that they cannot be used without entering a password. I'm running 12.04.
5
votes
2answers
459 views
NVIDIA Linux Driver Hack Gives You Root Access?
Launchpad bug link:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates/+bug/1032344
Apparently there is a security vulnerability with the current Nvidia Drivers that gives the ...
2
votes
1answer
130 views
How do I create one user without key authentication?
I've completed the following steps:
I have configured Ubuntu server with Key authentication and it is working fine.
I have disabled password authentication for key authentication to work.
The server ...
7
votes
2answers
3k views
How can I detect a keylogger on my system?
How could I know if there's a keylogger in my system, or at least if one is active right now?
1
vote
1answer
45 views
Is there an API for accessing historical Ubuntu Security Notices?
I'm working on an automated security audit system which analyses custom Ubuntu installations to check for packages affected by security vulnerabilities. Since these machines are not connected to the ...
0
votes
0answers
118 views
How do I disable guest session on Ubuntu 12.04LTS? [duplicate]
Possible Duplicate:
How do I disable the guest session?
I don't really want anyone else being able to use my computer. How do I disable the guest session option that you get when being ...
0
votes
2answers
63 views
Security - Is there a tool for Gmail that integrate in Desktop and does not ask my password (Oauth?)
I am a new user of Linux and I love it so far.
I am also a great fan of Google products and I was searching for a Gmail app that could tell me when I have unread emails.
Unfortunately, all these ...
