Fedora Security :: Authentication Method For Home And Office Networks?
Mar 9, 2010
The first is regarding my home network that I've setup. It mainly consists of two laptops, both running fedora. I find myself using rsync, ssh, scp, and the like quite often, but it is very annoying constantly needing to provide a password. This sounds like a job for RSA keys, but is it safe to do so on my laptop I take whenever I travel? If my laptop were to be stolen, my personal and private keys would be available to the thief. Is it instead better to use something like kerberos (which I'm not very familiar with, ie. I've used it at work but never took the time to learn how it works).
This isn't much of an issue with my home network since it is protected behind my router. However, I have the same issue with rsync, and ssh to my work PC. These are the RSA keys I'm worried about if my laptop were to be stolen.
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Mar 1, 2010
I would like to have a web site pop-up on the persons laptop that connects to my wifi network. The page will let them know this is my network and give a list of shares on the network. Then click ok to get wireless authentication. Something like you get when you connect to a wireless connection in a hotel. software i can install on my Ubuntu 9.10 server to do this.
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Nov 4, 2010
I have 2 versions of the same spreadsheet. Each spreadsheet is divided into many different workbooks.
I have googled this without success. I want to automatically find any lines in spreadsheet 1 which are not in spreadsheet 2 or vice versa.
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Aug 6, 2010
I know Windows forward and backward but I am so new to linux it's just wrong. I just installed fedora (like 1hr ago) on and old toshiba laptop with a WiFi PC card. Everything seems to work fine except. My Networks connects to my home Wifi network but it will not connect to internet. When it connects the IP address isn't even close to being in the same range as my other laptops and PCs. Like I said I'm new to linux but I'm wanting to learn. Any fixes for this issue? Which linus book is the best one to read for a beginner? Other then not connecting to internet I have no complaints.
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Jan 10, 2010
I want to configure SSH key-based authentication and SSH password Authentication in same machine for different user .
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Jan 15, 2010
i have a working squid ncsa authentication. i have this in my squid.conf
Code:
acl password proxy_auth REQUIRED
acl employees src 192.168.0.2
acl admin src 192.168.1.2
[code]....
this setup makes squid authenticate both the employees and admin network. how can i make squid just authenticate only the employees network? admin network should connect to squid without authentication.
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Jun 11, 2011
Just an FYI for anyone who may be having this particular problem. A short while back, I was trying to attach a picture to a Twitter post, and dropped my network connection. No big deal...connection came back, and things went on. Next time I launched Choqok, it popped up a message saying "Server Error: This method requires authentication". It was puzzling, and didn't appear to impact my use...until I went to send a direct message, and it would give that error and crash. After quitting Choqok, the file (/tmp/ksocket-user/klauncherXXXXXX.slave-socket file) was still present. Deleting that file manually cleared the error up. I've seen this mentioned in a couple of other forums, but none with a solution posted.
If anyone else has that error, and this method resolves it, please let us know. I'm using openSUSE 11.4, but it should apply to any version/distro of Linux using Choqok.
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Jan 17, 2011
I need to make a choice on what authentication protocol I want to use for Authentication and Authorization. I was looking at Radius and then literature suggested that Diameter was a better protocol. Keep in mind I need this on a hetrogeneous setup ( linux & windows together). Diameter seemed like a good fit until I discovered that the open source code no longer seems to be maintained ( C/C++).
I was also looking at Kerberos as an option though there is alot overhead with the server. SSL/TLS or EAP? I am looking for simple but secure and am new at the security protocols.
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Aug 17, 2010
My server is connected to the Internet for ssh on port 22 with root logon disabled, a single non-dictionary word user name allowed, and pki authentication only (about as secure as I can make it). I've previously run fc5 and 9 servers using the same sshd config since 2006 and had no security troubles, so I'm happy, but.. After the fc13 install and configuration, logins from a host on a remote network are taking about 1m 30s to complete! A (partial) console output for ssh -vv appears below. The lines marked with "**" were the lines after which significant pauses happen. This is fully repeatable.
Code:
debug1: Next authentication method: publickey
debug1: Offering public key:
debug2: we sent a publickey packet, wait for reply
[code]....
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Aug 19, 2009
while tampering with the settings for my wireless connection by right-clicking on the icon on the top menu i was originally asked for my password for authentication. i selected the option to remember the password for future sessions unintentionally.
how do i get it back to the original setting so that it asks for a password before allowing me into the editing screen? i tried preferences > system > authorisations > network-manager-settings, but it didnt work.
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Jan 27, 2010
Can't seem to do it, wondering if anyone knows how? Normally there's something in sshd_config that can be switched to true or yes to allow root login but I can't see it in fedora 12.I can login via root at a terminal no problem, just not via ssh, I get access denied every time. Also, I need to login using password authentication.I've done: 227169 but that's just for GUI which I don't really need since I rarely ever log into the GUI.I have also searched through here and mostly only found info such as above, how to enable root login for GUI, or billions of posts about how logingin as root is bad but I cannotswer to my question.DISCLAIMER: Please do not reply to this thread if all you can contribute is the question of why I need root or to put some message telling me I can do everything using su, etc, etc. Please only contribute if you can answer my question. A: My machine and a valid quesiton. B: Spirit of Linux is open, not restrictive
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Jun 24, 2010
I'm using FC8 and have installed a mailserver(postfix+dovecot),when I trying to enable the selinux mode to enforcing and i'm have some issue, the user authentication failed.if turn the selinux mode to permissive, then it work right.How can i to fix this problem?
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Jul 28, 2011
Has anyone got experience connecting a linux machine to a Microsoft VPN server using RSA authentication? What puzzles me perhaps most about this topic is the absolute dirth of information. If it is not possible, can anyone tell me why?
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Sep 18, 2010
I will be version-upgrading a friends (Ubuntu only) laptop very soon. It is 9.04 now and the new version will be (ideally) 10.04.1 The machine has a large unused area on the hard drive and who has known this situation was to use the uncommitted area to do a complete new install of 10.04.1, leaving the 9.04 unchanged (useful insurance). Then, copy, paste (?) the /home directory from the 9.04 into the newly completed installed 10.04.1 overwriting the installed directory.
Opinions seem to support the notion that such a paste into 10.04.1 is likely to be successful and trouble free as long as the 10.04.1 installing username is the same as the 9.04 username with same privilege level. I would be grateful for comments here, particularly with any details, gotchas, you can see.
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Feb 1, 2010
I want to operate my home PC from my office. I'm using fedora 12 installed machine at home. how can i get access for my home PC?
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Dec 13, 2010
I have my main network with internet and DHCP which is on 192.168.x.x with a router.Now I have set up an Ubuntu file server and i want it on a separate home network with static ip addresses range of 10.x.x.x. and it is also connected torouter.So i will have two networks, one private static with no direct internet access, and the other with internet and DHCP. I want to know how I would "bridge" these two networks so that I could access my file server from the DHCP network. How is this typically done?
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Feb 2, 2011
What security mechanisms are used by recent versions of the Linux operating system during user authentication?
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Jul 25, 2010
I have spent some time testing out different backup solutions for my small home office during the last weeks, but still haven't found anything that have been working out too well yet. We can definitely work with a non-GUI script if that's what it takes, if only the requirements are fulfilled:
- Upload to Amazon S3 Europe. We get unbelievable slow uploading speed to US, so uploading 400+ GB of data will not be happening anytime this year...
- Incremental backups - only changed files shall be uploaded or we will have a big bill from Amazon in the end of each month..
- Files should not be uploaded in one big per-folder archive. This is not efficient at all, since if we change one file in a subfolder, a huge two-digit GB sized file would have to be uploaded during next backup. Not good for economy again, or traffic overhead on our internet connection.
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Nov 18, 2010
I am looking to buy a 3 in 1 Printer (Copy, Scan) Sometimes I'd like also to print fotos. Often I will have to scann. Wich brand would you buy and why? Wich has low printing costs and is for home office fast? And bevore all that, do i get the drivers for all functions?
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Mar 19, 2010
How to secure the Home folder. I forgot what the script was?
Something like chmod 0700 $HOME. Is that right? I'm just not sure.
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Jul 11, 2010
I wonder if SELinux really are necessary for a home desktop ?
It only makes my computer use more problematic than it already is.
What can happend if I uninstall it on my Fedora 13 dist ?
Is the hole Internet going to come in to my computer and destroy it ?
If I uninstall SELinux, is the firewall uninstalled also ?
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Dec 16, 2010
I have a block of 5 static ip's and 2 servers that push HTTP and other services. What is the best method of configuring/routing traffic to individual boxes on the network?
More detail: One of my static IP's is assigned to a dedicated box for an Ubuntu mirror. Another static IP is assigned to a server with all of the HTTP traffic.
Several configurations function to route traffic appropriately (forwarding proxy or 1-to-1 NAT). However, with 1-to-1 NAT, the box is left open to the world with only the software firewall. Do I really need to place a hardware firewall inline to EVERY server?
Or, what other methods of routing and firewall would you recommend?
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Nov 5, 2009
I get spammed with this message by the troubleshooter, is the audit-libs package related to this ? there was an update today.
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May 11, 2010
I am trying to build a ftp server with vsftpd. In general, I am not able to log in. I can only log in to the ftp server, if that same user is logged in to the server. I found out that this has to with my network setup. I am using OpenLDAP for centralized authentication and home directories are stored on an NFS server. The problem is that regular users are not allowed to log in to servers, therefore their home directories are not mounted. However I want to be able to give my users access to the ftp server without their home directories mounted. Is this possible with vsftpd and if so how do get this up and running. By the way, anonymous users are not allowed.
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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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Jan 7, 2011
I don't know if this is Just my Machine, or not. But here is it:
Ubuntu 10.01
Acer Aspire 7740
When the computer is locked. I can smiply go to switch users. when the list of users logins are shown all i have to do is click on my user name and it allows me into my account without typing in a password. I can lock the computer manually or wait for it to time out it doesn't matter. the switch users method allows me to bypass the password protection.
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Jul 20, 2010
Bot herders and the crimeware gangs behind banker Trojans have had a lot of success in the last few years with using bulletproof hosting providers as their main base of operations. But more and more, they're finding that social networks such as Twitter and Facebook are offering even more fertile and convenient grounds for controlling their malicious creations.New research from RSA shows that the gangs behind some of the targeted banker Trojans that are such a huge problem in some countries, especially Brazil and other South American nations, are moving quietly and quickly to using social networks as the command-and-control mechanisms for their malware. The company's anti-fraud researchers recently stumbled upon one such attack in progress and watched as it unfolded.
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Jun 15, 2010
I have read that to improve security in Ubuntu a good fix is to make the /home folder tree non-executable by default. This would mean that malware could not run in the /home tree without changing the setup.Is this a viable change, or is it just icing on the cake, any one any thoughts on this.
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Jun 9, 2010
I read this morning that MicroSoft and Adobe Flash released a huge security update to counter the threat of malicious apps taking over systems. Included in the fix was Excel spreadsheets. Apparently a hacker could send a spreadsheet that if opened could remotely take over your machine. I opened my update manager and there was a sizable Open Office and Java update.
Question: Are Linux/Ubuntu machines susceptible to the security flaws?
Question: Since Adobe Flash is considered proprietary and not updated through the Ubuntu update manager, do I have to manually update that package?
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Jun 3, 2011
I have some questions about security
1> are the flash exploits are of any use to a Linux operating system like Ubuntu etc. ?
2>are the Microsoft office exploits any risk to libreoffice or open-office software suites?
3>are there exploits for Linux , open-office and libreoffice ?
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