Ubuntu Security :: GNU-PG Registration Process Asked Real Name?
Jan 27, 2011
I have a question about GNU-PG security for email clients. I have read that this is the best email protection available. I have it among available Ubuntu packages, too, but when I wanted to use it the registration process asked my real name. considering full or the best possible privacy claim, why real name? or is it ok just not to give the real name? I am not advanced in cryptography, could/can this not be avoided?
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Sep 28, 2010
When I installed Ubuntu (Lucid) on my new computer, As well as the login password I was asked for a keyring password. I gave one, but I am not sure exactly why I need this password. It seems that it was required to let me access the wifi - even though this has its own security code. I found I could stop the system asking for it every time I tried to connect to the internet using wifi by checking a button in the network setup, but when I registered for Ubuntu One, I was again asked for it - twice, once when I registered and again when I set up Tomboy notes sync. Now I get asked for it again every time I switch on.
I would like to know why the keyring passwords are needed in addition to the login password for a single user computer, which mine is and also how I can stop it asking for this password when I switch the computer on. One suggestion I have seen is to make the keyring password the same as my login password. If that is the case, then how do I change the keyring password?
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Dec 3, 2010
I have quite a few things running, and walk away from the laptop. When I return and wake up the computer, I have a period of between 10-15 seconds before a password prompt is shown. I would expect the password prompt to come up before I am able to type and do any system commands.
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Sep 20, 2010
Hello everI'm really confused by the ways an encrypted partition get mounted.It just mounts the partition without asking for the passphrase used to create it. I can list the files in /mnt/sda2, create a new file test.txt, but have no access to the files written to the "real encrypted partition".Then I can see/change the content of the encrypted partition but without being able to see/change the file test.txt created previously with the normal mount command.
The reason I'm asking is that I'm having my custom Debian to automount every partition available on the system at boot time. Is there any way/command to tell if a particular partition is encrypted (by cryptsetup) or not? So that I can mount it the right way and not make the users confused (or even harm the encrypted data).
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Jul 29, 2011
I am using FF ver 5.0.1 from here After reading [URL] I did Code: sudo aa-logprof /path to firefox Allowed all when asked. But when I try to start FF in enforce mode I get
[Code]....
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May 29, 2010
broadband cable -> Linksys RTP300 router -> Firestarter -> Ubuntu 10.04 Desktop
sshd and vnc installed and working fine when enabled but the only way is to add my routers ip as a trusted address or add individual port entries for 192.168.15.1... on the linksys i, of course, have the appropriate ports forwarded to the Ubuntu static ip, so basically anyone can try to connect... how can i make the router forward the internet ip of the person trying to connect, so I can lock it down better?
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Jun 14, 2010
I am building a PC that dual boots Kubuntu and Windows and want to share the email store. Therefore, I would like to have real time or on access scanning of emails in an antivirus program like Windows does. I am not running an email server, just a desktop using pop3 and eventually imap email.
In previous Debian versions ClamAV and Dazuko used to do this. However, I understand that this setup doesn't work in Lucid. I tried p3scan but that hasn't been updated since 2008, once I managed to install it, it failed to find clamd even though it was running. I understand that clamdrib no longer works for Thunderbird 3. Amavisd as a replacement for p3scan, but this seems to be for mail servers.
I would be really grateful if anyone could tell me how to get on access/real time virus scanning of pop3 and imap emails on a desktop running Lucid with either Thunderbird 3 or Kmail, without having to buy an antivirus program like Avast Or point me to an existing tutorial that I might have missed.
As an aside (don't want much do I?) does anyone know if Kmail can be setup to only download the headers like Thunderbird does?
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Jan 21, 2011
How a new server can be registered in RHN to get the updates & packages ?
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Feb 2, 2011
Is there a hook thing in the Linux DNS. What I mean here is - in Linux hooks are called when the status of the network changed - like dhclient-enter-hook, exit-hook etc - is there similar thing when a dhcp client registers itself with the DNS?
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Feb 17, 2010
I have two suse linux server. Recently we got the license key. In one server i could able to register successfully. Another server is throwing an error.i am using yast-software- Novel customer center configuration. After selecting configure now, i am getting error has follows Execute curl command failed with 7 curl: (7) could't connect to host.
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Feb 16, 2010
I have two suse linux server. Recently we got the license key. In one server I could able to register successfully. Another server is throwing an error. I am using yast-software- Novel customer center configuration. After selecting configure now, I am getting error has follows
Execute curl command failed with 7
curl: (7) could't connect to host.
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Jul 8, 2010
Server
Distro: Debian Testing (Squeeze)
FreeSWITCH ver.: 1.0.6
Client (Dual-Boot Setup) Problem: Both Windows Vista Ultimate 64-Bit and Ubuntu 10.04 LTS versions of Ekiga, including SFLphone in Ubuntu 10.04 seems to be ignored by FreeSWITCH. FreeSWITCH fails to register. In the client side, the Windows firewall gets turned off for testing while everything in iptables under Ubuntu has everything set to accept in the filter section. In the server side, the firewall configuration is quite basic.eth0: Cable Modem plugged in via USB cable eth1: nVidia Gigabit that connects to my 1Gbit switch
[Code]....
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Dec 6, 2010
I am just out of curiosity working with honeypot and found there are two way for arpd to route the unused IP to honeypot with blackhole and arp spoofing.Now to test, I am arp spoofing 5 machines from 192.168.100.41 to .45 and also honeypot is monitoring this range too. But I have setup a real machine with webserver in between this range and gave IP address 192.168.100.45.Now logically as arp and honeypot both are monitoring this range so they capture this request as below from log:
PHP Code:
arpd[1690]: arpd_lookup: no entry for 192.168.100.45
arpd[1690]: arpd_send: who-has 192.168.100.45 tell 192.168.100.10
arpd[1690]: arpd_send: who-has 192.168.100.45 tell 192.168.100.10
arpd[1690]: arp reply 192.168.100.45 is-at 08:00:27:00:76:e5
arpd[1690]: arp reply 192.168.100.45 is-at 08:00:27:00:76:e5
code....
Now arpd is redirecting the traffic to honeypot machine as there is a real system with real MAC address. But from 192.168.200.10 I can also view the webpage of 192.168.100.45 machine. But most of the time it says "Connection Timed out".
Should it be acting like this or it shouldn't be showing me the webpage at all?
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Jan 13, 2011
I am trying to configure an application that requires to send mail notification on registration. But the application shows warning
Net::SMTP is installed in this environment, but {SMTP}{MAILHOST} is not defined, therefore the program listed at {MailProgram} will be used.
How to setup SMTP:MAILHOST
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Mar 19, 2010
According to firestarter, there's some process on my machine that keeps trying to access port 1900, every two minutes exactly. I don't know what it is. I've tried netstat -tnlp, but it doesn't show up. Presumably I have to do it at the exact second the process is trying to access the port. Does anyone know of a bash subroutine that will keep doing netstat -pl until it finds a process on port 1900?
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Jan 29, 2010
On my HTPC/Server unbuntu box I have installed logwatch in order to get a daily look on my computer activity.
And I often have this line in the report :
Quote:
root => my_user
-------------
/usr/bin/gconftool - 3 Times.
The corresponding line in auth.log are :
Quote:
./auth.log:Jan 28 07:59:31 sweetBox sudo: root : TTY=unknown ; PWD=/ ; USER=my_user ; COMMAND=/usr/bin/gconftool --get /system/http_proxy/use_http_proxy
./auth.log:Jan 28 07:59:32 sweetBox sudo: root : TTY=unknown ; PWD=/ ;
[Code].....
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Feb 22, 2010
When I restart my computer the following messages come up:
__________________________________________________ _
init: usplash post-start process (2221) terminated with status 1
* Stopping ClamAV virus database updater freshclan
[code]....
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Dec 17, 2010
My machine is trying to communicate with another computer. I�ve blocked the traffic with this machine with iptables (input and output traffic), but I want to find the origin of this traffic. There�re 90% of probabilities it�s a trojan, and I want to find it.I have logged the packets with iptables (and then dropped), but with this I don�t know the proccess source.I�ve tried with netstat -o, but I don�t get nothing.How can I see the Process source (i.e. the PID) of this traffic?The traffic are TCP packets, with SYN flagged active (my machine is trying to establish a connection with that IP).
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Nov 15, 2010
I have a 10.10 machine where it has taken to refusing to logout of one specific user account. When I choose logout/restart/whatever from the possible options, it takes me to the main login screen (with the drums) and it shows thet that user is still logged in. The only way, once this occurs, to rid myself of this is to sign in as an administrator and run shutdown -r 00 under sudo. Then it reboots. (Using the admin account to choose restart/shutdown also returns me to the mail login screen where that unpriv'd user is still logged in.) (The machine is fully up to date.)
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Feb 18, 2010
I have been tasked with sending a kill -s SIGHUP (a reload) to a Daemon process owned by root running on a centOS 5.4 machine.
Obviously, Apache cannot normally do this, so I'm going to have to use the sudoers file.
My problem is, how do I allow the Apache user to only run the kill command? nothing else.
in testing, I've gotten Apache to basically run every command prefixed with sudo and no password prompting. But I want the added security to only run the kill command without the password being prompted everything else should prompt for a password.
I'm trying to understand the sudoers file, and i must say, its non-trivial.
is there a simple 1 line I can put in the sudoers file like
PHP Code:
apache ALL=(ALL) NOPASSWD: /bin/kill
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Jun 27, 2010
On my RHEL5 system one of my key file in one specific directory gets deleted when I start my application suite (having multiple processes). Is there some way to narrow down which specific process is deleting this file?
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Jan 29, 2011
I am a noob who is playing around with setting up a home print/file server using Ubuntu Server 10.04. I have successfully setup the server and am now configuring the SSH server so I can control remotely.
I have setup RSA keys with a passphrase as outlined in the SSH - Ubuntu Community Documentation. However, when I log in remotely I am only asked for the passphrase the first time. Any subsequent log-ins simply take a few seconds to connect without any passphrase request. After restarting my laptop (that I use to connect remotely), I am again asked for the passphrase only the first time and subsuquent logins are without a passphrase. I would like to know if this is normal and if there is a way to have passphrase requested on each login.
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Mar 23, 2010
what the recommended way to set up real-time (or near real-time) folder synchronization among 2+ servers. I looked a rsync but that doesn't sound real-time and it looks like its something that you might put in a cron once an hour.
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Dec 19, 2010
When a user that has rsa public key set in ~/.ssh/authorized_keys file logs in via ssh an sshd process is started to handle the ssh session.Periodically we audit the authorized keys and remove them from the system and authorized_keys file. This means the next log in attempt will fail, which is fine.However we need to terminate current ssh sessions in progress that use the rsa key.I have not been able to determine a way to map sshd processes with authorized_keys entries.
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Jun 13, 2011
I just got control over a server that was hacked several months back. The other day we started receiving rejected emails sent from my server to a yahoo email address that is no longer active that contained users login information. I am trying to find the process that is sending these emails. So far its been like finding a needle in a haystack. The email that is being sent is appending the login information each time it is sent so there must be a local file that contains this information. I have tried using grep and find without any luck.
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Jan 17, 2010
Am being asked by karmic to login for a second time.
Tried installing startup manager and reinstalling gdm but no change.
Anyone else with this problem, or who had it and fixed it?
I set it to autologin for a few weeks, then reverted to standard login, and the problem has gone away
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Jan 14, 2011
is there a way to edit which commands require a sudo? or some programs, like the CPU frequency monitor on panel, requires a password to change. where would i start if i want to change this?
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Jun 24, 2011
I hav disabled the password on startup but the default still pops up and asks the password. How can I stop that. I use UBUNTU 11.04
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Apr 16, 2010
I am posting again as I would like to solve a problem that has occurred several times over the past 3 years. As yet, I cannot find any threads that anyone has posted a response to it. I just did another search for "fonts squares" and although
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Sep 1, 2010
There where some updates for 10.04.1 yesterday, after I installed them, a few hours later I restarted my machine as new headers and kernel files where downloaded.So this morning, when I come in, I wanted to check my software sources as I saw something a little odd yesterday.When I try to start that program; I am asked for my administrator password. Not the password I use for administrative tasks; which is what I am generally asked for.Anyone else seeing this? And if so, what happened. The admin account I have setup is My account, I am the only person on the machine. In the past I have entered my password and carried on; not this morning. Not sure what is happening; but I have not setup an actual admin account / password.
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