Ubuntu Security :: Free Ubuntu-users Public Proxy List?
Jun 18, 2011
I wish all of my Internet connections will go through a proxy server. HTTP as well as FTP, and every other type of link. How can i do that?
On top of that, is there a free ubuntu-users' public proxy list?
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Feb 16, 2010
how to lock down individual users from setting a proxy server. Its a server not a WS so it should never go to the internet. I want to lock down the system side and firefox 5 settings.
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Jun 16, 2010
During playing around sources, synaptic playing I messed up the default list. I know I should have been more careful. Anyways could someone tell me what the default the default sources.list that has free and non free etc for squueze please? I have been trying to get the default list but I cannot find it anywhere. There are alot of lists out there but nothing tagged like the "default" list.
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Apr 13, 2010
I have a PC which has a Public IP.It is a webserver but it is not a proxy server.I want to be ableto do an ssh to the machines which are behind this webserver on LAN in one step.Right now I do an SSH to this webserver and then do an SSH to any other machine on my LAN how can I do it in one step.
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Feb 2, 2010
How would I list 4 users ID numbered 10, 11, 12 and 13 from my users list and output them to a file busers where their names are numbered by ascending order? How would I accomplish that on a one line command?
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Mar 28, 2011
point me at a free proxy to bypass this which can simply be installed, built and/or run.setting up a server outside china and running a tunnel to it from my comp is not an option. also, below is a list of sofware that i have tried and failed to work:
Tor with vidalia
Tun with squid (i think squid)
hamachi (which i later realized would never have worked)
i tried to get haystack but it wouldn't build.
PS: if this post is in the wrong area, please tell me where to move it...
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Jul 8, 2010
I recently got a nice, lightly used IBM Thinkpad laptop. It has wireless capability for the Internet. Linux is the only OS in the laptop. At home, I don't have wireless-- I have a wired DSL connection for my laptop and for my IBM desktop (which also only has Linux as OS).
When I took the laptop to the public library, wireless is provided there for free and I had no trouble connecting to the system there. But since I'm new to wireless, what do I need to have installed to have a secure laptop when in the public library (or when I'm anywhere else that offers free wifi) using the wireless connection? [I use Firestarter as my firewall in the laptop and in the desktop.] Do I have to install some software to make sure my laptop is secured from spying and invasions when in the library or is the Firestarter enough? If Firestarter is not enough, what is that wifi security software by name?
[My OS is MEPIS 8.5, a Debian-based distro.]
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Jun 26, 2009
Im trying to config my intranet to be accessible from inside the network (lan) without need of password and ask for a passwd for those who are viewing from Wan ....
Today my intranet can only be accessed from Lan, external access give me an Unauthorized message, I took look around, try #irc and still can get the appropriated help, I hope that someone here could help me on that...
A piece of my config:
Code:
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Nov 1, 2010
We are trying to set up a classroom training environment where our SIG can hold classes for prospective converts from Microsoft/Mac. The ten machines will have /home/student01..10 and /home/linsig01..10 as users. We want /home/student01 to be able to explore and sudo so they can learn to administer their personal machines at home. We don't want them to be able to modify (sudo) /home/linsig01. I've seen the tutorial on Access Control Lists but I'd like other input so we get it right the first time.
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Mar 7, 2010
I am trying to figure out the best way to set up 1-1 NAT for three public ips to three private ips through a ubuntu gateway machine.
I am running ubuntu server 9.10 and the set up is:
Internet/ISP modem -> NIC 1 Ubuntu Gateway Machine NIC 2 -> Three PCs with Private IPs
I had a few questions on how to do this correctly and securely.
1) What packages do I need to install (aside from the basic ubuntu server installation and possibly DHCP3-Server)
2) How do I assign all three public IPs to the NIC connected to the ISP modem? All addresses will be static, will I need the DHCP3-Server package?
3) Once I have the three public IPs assigned how do I map each specific public IP to the private IP address associated with it and provide the correct loopback? I want to make sure each response from the internal machines are sent out as their specific public IP.
4) Aside from allowing all connections, how should IP tables be configured to allow web services to one internal machine, mail to another internal machine and DNS to the other internal machine?
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Jun 6, 2011
I've got a p12 certificate (I own the secret key), and I would like to export the public key to gpg keyservers. How to achieve this?It works flawlessly inside gpgsm and kleopatra, but I cannot send keys:
Code:
$ gpgsm --send-keys 0xDA4E5DD0
gpgsm: this command has not yet been implemented
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Oct 18, 2010
I have an encrypted document (with my key) which I should decrypt. After the generation of my key, my computer is formated and new reinstalled. Now GnuPG find my key public and I can't use it for decryption!
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Oct 15, 2010
To avoid having to input a password for the keyring each time I connect to the net via wireless, I enabled the 'Available to all users' option in Network Manager. Now, my question is this. Are the 'users' it refers to just those created on this machine? Would a drive-by be able to use my network without entering the password?
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Sep 8, 2010
I can't get this to work on my machines.
So far I have:
1. created a key with ssh-keygen on the server to be logged in to
2. copied the .pub key to my local machine
3. chmod 700 ~/.ssh on both machines
4. chomd 600 ~/.ssh/ic_rsa on the server, and on known_hosts on my local machine
5. added the .pub key to ~/known_hosts on my local machine
my local machine doesn't have an "authorized_keys" file which is what everything is telling me I should append my .pub key to. The only thing that was in my .ssh folder was known_hosts, so I tried that. I also tried making an authorized_hosts file to no avail, changing permissions appropriatly on all files.
Should I/Can I reset ssh in some way? Is there are reason I don't have an authorized_keys file or is my known_hosts file my authorized_keys file?
Would it be better just to uninstall/reinstall ssh?
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Jul 17, 2011
how safe is it to run Ubuntu updates when I'm connecting via a public network (wireless or wired) from a hotel (or other public settings). I'm not familiar with the internals but is there an additional validation mechanism for the package servers other than the URL ?
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Mar 26, 2010
At the moment we have one SSH server with the private key being on a usb flash drive, and the public key being on the server in authorized_keys2. Now that three more servers are coming online, should we generate new keys, so we have muliple private and public keys (one pair for each server), or use the same two keys to access all the servers
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Mar 31, 2010
I am using Nautilus to connect to an external server. Currently, I use password authentication, and all works fine. I just type sftp://SERVER and the connection is established after providing the login credentials. However, I changed the server to only accept Public Key Authentication and disabled password authentication, and as a consequence I could not login using Nautilus anymore. Is there some way to make this work?
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Aug 26, 2010
I have a problem with my ubuntu account. I am running 4 virtual machines, based on jeos-8.04 and I am using a public key authentication to login to my account (via ssh). This is not the problem, I have the key and the passphrase. But when I am logged in, I can't sudo, because I forgot the password for the accout.
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Nov 4, 2010
I'd like to know if this is common security flaw or normal to open up FTP to the public which is of course protected with password for 3rd party access to maintain our public facing / production website ?
If yes, what sort of FTP application to install in Ubuntu ?
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Jan 13, 2011
Our local community wants to provide broadband access for people who don't own a computer. I have been given the task of setting this up and I am going to use Ubuntu. Internet access will be via a usb dongle to a T-Mobile 3.5g network. Initially we are intending to limit access to just Internet browsing. Most users will probably be older people, rather than teenage hackers. configuring/securing a default Ubuntu install for this sort of use.
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Jan 29, 2011
I was wondering is it posible to list all software installed from non-free and/or contrib repository?
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Dec 2, 2010
looking at my router logs i've noticed for the past while a range of source ports from 60000 to about 65000 from my source external ip to destination external ip always on port 80. I have 3 boxes on this network and this only seems to happen when i connect the one laptop. I even reinstalled the distro downloaded from trusted source but the router is still logging this.. netstat -ntulp shows nothing operating in this range. chkrootkit shows nothing.. Was thinking maybe someone was spoofing the external address but it's been happening on network startup for a month now
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Apr 19, 2011
what I'm doing, but I'm implementing some automatic security protocols on a ubuntu system, and I need to see a list of all users, including system ones. The reason for this is that I created a system user with a specific UID, and I forgot it. The 'user' command only lists the nonsystem users.
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Jul 22, 2010
I have to make sym link of phpmyadmin in /var/www in order to run phpmyadmin. I read that links can't be chmod-ed. The link ot folder phpmyadmin has 777 permissions. When browse in it every file has only read and for the root read/write access.
Is that a problem (777 access rights on sym link phpmyadmin on /var/www folder)?
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May 26, 2010
I am not sure whether it's possible or not. We running squid proxy server for our office. We restrict users using ACL to access the internet. There is some who do the followings:
1. Create a own proxy in there box who has the internet access.
2. Other users use those box as proxy and access to the internet.
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Jun 6, 2010
i have squid 2.6 server running on rhel5. by default teamviewer access is deny. i want to allow access of teamviewer but not getting.
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Feb 12, 2010
This is my quest: i need to install a box with a proxy server where useres can login, register what those users have been doing on-line and generate a dailly activaty report... I have been googleing for days and so far a tried out zeroshell (no reports) and untangle (no login)...
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May 19, 2010
gauge when the server is getting overloaded with users. At present I run the server mainly as a proxy server with about 100 users. The bandwidth at the data centre is 100Mbps connection with total bandwidth used last month = 17431.16 MB I would like to add a VPN in future but feel that this might overload the bandwidth as instead of it just being web traffic it will the entire client TCP connections. I would like to monitor this before it gets to the stage where users are complaining but not sure how to gauge whether the proxy is being overloaded. It is used mainly for video traffic.
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Feb 22, 2010
I'm looking for a command that will give me a list of users (unique, dont name my user account 60 times) that are running processes on a system.
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Jun 15, 2010
I want to find out ip addresses and also mac addressed of users connected to the same wifi router as me! how can I do that?
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