Security :: Check Mail Via Tor And Browser Says Connection Untrusted?
May 20, 2011
I was recently connecting securely to the website where I have my mail account, and I connected through Tor. When doing so firefox presents me with the screen saying that the connection is untrusted and it can't verify the certificate. So I cancelled. I'm using torbutton and I turned torbutton to off and connected again with no problem. Then with torbutton on again, same thing (untrusted).
Is it possible the exit node I was going through is doing a man in the middle attack? However later when connecting through tor I did NOT get the warning about the site being untrusted. I really don't know what exit node I was using when I got the certificate warning and what exit node I was using when I did not recieve the warning. I don't know how long I stay on the same node or how/when it changes.
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Jul 24, 2010
I use Firefox 3.5.9 and Ubuntu 9.10.
There is a suspicious amount of data (more than a megabyte) being uploaded from my computer whenever I log onto a commercial web site on which I advertise rental properties.
Is there any way I can see the data being uploaded - I am pretty familiar with the Unix/Linux system and commands.
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Apr 20, 2011
I got this error (see the pic from this link [URL]) when opening google account, face book, etc. Some guys suggested to check the system time and make sure the computer time is same as the local time. According to this hint, I run the command "sudo tzselect" and choose "Europe -> Dublin" (Im in Dublin), then restart PC. However, the error still pops up.
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Oct 10, 2010
I just upgraded to 10.10 and found that when I visit the secure area of my business site, it throws an Untrusted Connection error (on FireFox). It works perfectly fine with Chromium on Ubuntu though. And it works just fine with all kinds of browsers on Windows Vista too. is this a known issue on FF with the new Ubuntu?
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Oct 8, 2010
I want to start using videos/music files downloaded from untrusted sources (BT,Sharing Forums, etc.). Haven't made this a habit b4 because of the security risks. I want to take steps to reduce the risk & protect my computer from anything malicious. What are some good choices for this? The biggest step I took so far is using Ubuntu since it's very virus resistant, but other threats do exist out there (rootkits, malicious scripts, etc.). When downloading files from untrusted sources, who knows what may be hidden inside.Some options I'm thinking about:
1) Using a VM (with Ubuntu installed inside) & playing the files inside the VM. If anything malicious happen, it would be trapped inside & I could easily revert to a clean snapshot.
2) Using AppArmor to restrict what the files or program used to play the files can/can't do. AA seems very complicated though.
Are the above overkill? Would it be sufficient enough to just open these files on a non-admin user account since no access to root or sudo?
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Oct 7, 2010
At the login webpage of <[URL]>, the Time Warner Cable (TWC) Webmail site, I am immediately confronted with a warning that the Security Certificate is invalid & that the site is untrusted. This occurs with Firefox, Seamonkey, & Konqueror. This does not occur on Microsoft or Apple systems; I have checked other colleagues machines. I have manually overridden the warning & everything functions fine. I have contacted TWC & am awaiting their tests. But, I would like some independent corroboration from other users in the Linux community. Could some of you perform the test yourself on this URL? An error will be readily apparent.
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Apr 1, 2010
I have to deploy a server to some customers that should not be given access to the server itself. I know that nothing is 100% secure but I've searched without finding a decent answer (maybe I googled for the wrong terms ?)I need some advice about encrypted filesystem. * The server must boot without asking for a passphrase (the server will be in a restricted access area so typing a password could take a while). I can't store the password for luks in an unencrypted file so it seems a loop to me. The only way out I can see is to store the passphrase in the boot binaries (better than nothing...) but this results in more work for me.* possibly the customer should not be able to move the hard disks to another pc, i.e. reading the passphrase from some unique hardware ID. This is risky but I could add a master passphrase to be used in case of hardware replacement
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Jul 10, 2010
What if someone tampered with some important security updates, and suddenly you get a rootkit instead?
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Sep 3, 2010
I've read and re-read everything I can find about AppArmor, to no avail. On the whole, AppArmor isn't for me. However, rather than give up on it completely, I have an idea: create a profile that I could use as a template for any untrusted application, with the aim of 1) blocking it from network access and 2) blocking it from installing other applications. I've got as far as creating an empty profile:
Code:
# Generic AppArmor Profile for UntrustedApplication
#include <tunables/global>
/usr/sbin/UntrustedApplication {
#include <abstractions/base> }
What do I need to add to make this profile 100% permissive, except for the two exceptions stated above?
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Aug 30, 2010
This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: xx@xx.com SMTP error from remote mail server after initial connection: host [URL] [ip address]: 50 Access denied...
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Sep 16, 2009
I'm running Fedora 11 64bit on an Acer Aspire 3935, dual boot with Windows Vista. I installed three days ago and the system is supposedly fully updated. While doing some routine configuring I noticed that I am unable to access the Preference window of File Management.
I want to check the box for 'always open in browser windows', but therefore I need the Preference window. When I try to access through System > Preferences > File Management, it says starting for a few seconds and then nothing. When I try to access through Computer > Edit > Preferences, the window crashes and disappears. I suppose there are other ways to change that setting, but in any case I'd like to get the general problem solved, not only the setting changed.
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Aug 25, 2010
Is there a way to to check if the system has the available security updates installed? Specifically, I am looking to do this programmatically.
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Feb 1, 2011
Running Maverick on my desktop. Had a strange happening sometime last night. I generally leave the computer on all the time. When I got up this morning, I saw that my computer had rebooted and it said that it wanted to check for disc errors and that there was a problem with /home It checked until about 70%, at which point it stopped advancing for a half hour, so I did a hard reboot and choose "I"gnore when I got the message again.
The computer booted fine. The disc manager gui seemed to think my hard drive is fine, but I didn't do the full, slow check. My hard drive is about a month old. When I opened "open office" there as a document to recover, indicating that the thing did in fact crash sometime last night. The next odd thing- my "Opera" web browser doesn't open the browser. The command it is calling up is "/usr/bin/opera %U" Doesn't do anything, nothing shows up as running in the status monitor. Rebooting doesn't change anything with opera, and I still get the request to do a disc scan and to try to fix errors.
I uninstalled and reinstalled the latest version of opera. I uninstalled that and installed an earlier version of opera. Then, I reinstalled the latest version of opera. In terminal, typing "opera" gives me the message: Could not initialize Opera. Typing "sudo opera" opens Opera. Using the icon to open opera still points to the same place, and still doesn't work. So, here are my questions:
1- How do I get a logfile of the crash that happened last night?
2- How do I figure out if there is a problem with the /home folder or a problem otherwise with my hard disc? How do I fix that?
3- Where would I point the "opera" icon so it opens normally?
4- Is there any way to recover the information that I previously had in Opera, such as passwords? I used "my opera" to recover my latest bookmarks, but that doesn't save passwords. I'm thinking maybe those files are still around, even though I uninstalled and reinstalled opera.
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Aug 30, 2010
This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
xx@xx.com
SMTP error from remote mail server after initial connection: host [URL] [ip address]: 550 Access denied...
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Mar 3, 2011
i updated both browsers i have and lost my secure log-in pages (no padlocks showing ) concerning different Web mail accounts.Just before i did these updates i checked an unrelated thing on-line regarding my sound card of which i kept a copy of and got this message below :
!!ALSA/HDA dmesg
!!------------------
[ 12.762633] cfg80211: Calling CRDA for country: AM
[code]....
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Jun 18, 2011
I'm trying to configure sending mail from my site under Ubuntu 10.04 LTS.I have installed LAMP and postfix. To test mail I created the file test.php with code:
PHP Code:
$to = 'mymail@gmail.com';
$subject = 'The subject';
[code]....
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May 4, 2009
I am developing a application in which i have to show the name of default browser and mail client. i want to run this application on RedHat, SuSE, Mandriva, and Ubuntu. I have checked similar threads but not found any useful information.
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Jul 16, 2011
How do I check for my mail servers for? and How do I know what is the first mail server used and what is the syntax to see the different server names?
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Apr 27, 2010
i have automatic spell check on for evolution mail.. but when i compose a new mail it does not work..
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Sep 29, 2010
I want to check my php script which contains php mail() function.But all the free hosting sites blocked the php mail() function because of spammers.I spend 5 hours for signing up in various hosting sites to check my script but none works.Is there a way to check whether a site allows php mail() function
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Jun 11, 2010
What is the message /var/spool/mail/acer for? how do I check the mail? I'm new to openSuSE.
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Jun 14, 2010
I have searched for at least 1h for this to find but I didn't found anywhere how can I do to check for large email mail boxes. I run qmail as mail service
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Mar 26, 2010
I'm using Google Chrome & Arch Linux x86.When I try to log in to my Gmail to check my Email I get this;Quote:The webpage at "A very long URL" might be temporarily down or it may have moved permanently to a new web address.And when I click on 'more information about this error' I get this;
Code:
Error 107 (net::ERR_SSL_PROTOCOL_ERROR): Unknown error.
I've updated openssl and have both SSL 2.0 and 3.0 enabled in options and I still can't log in
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May 8, 2011
I am writing an script for sending emails with ssmtp email client in an appropriate form.I want to know how can I check mail server that I want to send mail to it if it exist and ready to receive email or if not log an error.
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May 11, 2011
im looking for a program that lets me monitor server remote a check if apache is running and if its not send out a mail pretty much something like the Big Brother projeckt was before they went comercial i found a few projekts but most havent been updated for years anyone got a clue on any active projekt that does this?
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Jun 14, 2010
i want to write the script which check the disk space of linux server and send me the disk space details and mail me on my id.
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Jan 29, 2011
Using acer aspire one (ZG5) and have lost connection to Firefox browser after changing setting to make google my home default web page. I have no experience with linux so any help would be appreciated. There's no problem with my internet connection it shows connected.
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Jan 28, 2010
i have MySQL on my CentOS server and have installed it and got it up and running through the command line.
I have changed root's username and password so there is no user called 'root' anymore. I also created a database called pancakes.Now when i try to log in using Query Browser, i put the server's IP in 'hostname', my new roots username and password in 'username' and 'password'.When i try to log in it gives me error 1130 and says connection from myhostname not allowed.
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May 4, 2010
I have a Ubuntu box with a ftp service on. I wanto to upload/download files from my Win XP connected via LAN. I tried ftp command from cmd but I received "Error 530. Login incorrect. Login failed".I'm using root, I am 100% sure about the password (I managed to connect via putty), I just wonder how I can check the ftp connection from xp to ubuntu... maybe a firewall is blocking the port 21?I also tried ftp command in ubuntu (when I was connected with putty) and I got "connection refused" error.
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May 9, 2009
Just wanted to ask a small question... I've set up a VPN connection to my university and i installed and configured everything ok, cause I can connect without any problems...
Now that I'm connected I want my browser to run through the VPN tunnel created by the connection so i can access certain sites that are else inaccessible, but how do i force my browser (I'm using firefox atm) to do that?
When I'm on MAC of Windows OS, as soon as i connect with a VPN, all connection run through them. Fedora seems to ignore the VPN connection and just continues to use my home-network to connect to the internet.
So the basic question is: how do i use the VPN connection.
Iuse FC10, kernel 2.6.27.21-170.2.56.fc10.i686, fully updated system
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