Ubuntu Security :: Is There Way To Disallow Access To Other Websites?
May 4, 2010
I'm using Ubuntu x64 (dunno which version, but I don't think it matters) and I'm concerned about security with PHP.I remember using lighttpd and I had some mystic configuration and the secuirty was perfect for me - if one website gets hacked then the others are still safe (kinda).Now with apache2 if I enable safemode I'm still able to go outside web directory and actually I can go really far untill user/group matches.I tested the system with r57shell and I was able to mess up other websites.Is there a way to disallow access to other websites?
View 5 Replies
ADVERTISEMENT
Jun 11, 2010
I'd like to be able to limit access to a particular website, based on the time of day. I would also like to be able to password protect this if possible.So for instance, from 7am until 10pm daily, I can access URL... but after 10pm it redirects to 127.0.0.1 or something. And this configuration be protected by only allowing a certain user (other than root) to change the config?
View 7 Replies
View Related
Sep 17, 2010
I don't know is this the right place to ask, but i must ask some questions Here's my problem.I'm a student in highscool,and here we use Linux(ubuntu) OS .Every classroom has like 30 PC's connected with the main computer(the teacher's one) so....3 days ago we were forbidden access to some websites it says This domain is Blocked.By the way the Linux version installed is 7.04(feisty Fawn) i tried disable cookies that did not worked,also tried to whitelist some website,that also didn't worked out
View 7 Replies
View Related
Jan 21, 2011
I have been trying to get Squid to work so that I can restrict access to a particular web site during certain hours every night. I can't seem to get it working, however. I am still able to access the site. The following are the relevant lines from my squid.conf file:
acl restricted-domain dstdomain "/etc/squid/denied_domains.acl"
acl test time 19:00-20:00
acl bedtime time 22:00-23:59
[code]...
View 2 Replies
View Related
Apr 12, 2010
I want to block all websites except desired websites.
View 3 Replies
View Related
Jun 23, 2011
I am stuck in a weird situation and could definitely use some help from gurus in security area.
I have categorized my users into 3:
1. root user
2. other local users
3. LDAP users
I want to setup following 2 usecases:
a)
1. Allow keybased ssh and scp to root users
2. Allow ssh but disallow scp service to other local users
3. Disallow ssh and scp to LDAP users
b)
1. Allow keybased ssh and scp to root users
2. Disallow both ssh and scp to other local users
3. Disallow ssh but allow scp to LDAP users
For the 1. in both cases, I think PermitRootLogin in sshd_config could . For the 3. I am thinking of deploying rssh to control scp service access, since ssh will be restricted anyways.
Problem area is 2. primarily.
i) How to allow ssh but disallow scp to 'other local users'
ii) How to disallow both ssh and scp to 'other local users'
View 5 Replies
View Related
May 14, 2011
I have Windows 7 and Ubuntu 10.04 installed on the same harddrive. I'm using grub to boot both. I would like to deny access to the windows partitions, but allow access to removable drives and shared drives.
View 2 Replies
View Related
Jan 10, 2011
trying to devise a new sudoers configuration while building a new SOE and would like to force everyone (including system administrators) to use rootsh in favour of doing things like sudo -s, sudo bash, sudo tcsh and so forth. Effectively, use sudo to use any shell other than rootsh. Is there a way to allow users to run anything they want except shells. I realise this is a default permit which inherently is defective, but I'm not convinced that going through the 1559 executable commands of my (as yet incomplete) built system to decided on the likely 1000+ commands I would want to be genuinely allowed. As I said this is for system administrators first, and I'd like to forcibly instil the habit of sudo <command> or using rootsh to get an audited shell. But I know people are already not doing enough sudo <command> as it stands, rather they switch to bash.
View 7 Replies
View Related
Nov 13, 2010
I have a system, I want only my sudoer account to show and automount NTFS partitions under 'Places' in Ubuntu. Simply, they shall not have access to mount it. Only my main sudoer user account shall take advantage on this show-and-possibly-automount feature of GNOME, but not anyone else.
View 6 Replies
View Related
Mar 8, 2011
I need to disable file access (fopen, freopen, open etc) for application which is running under chroot jail and with restrictions (rlimit) via execv. Before that I redirected stdin/out to files within jail. I tried this:
Code:
// Redirect stdin/stdout to files
int fd = open (file_input, O_RDONLY);
if (fd < 0)
fatal_error ("input open failed!");
[Code].....
View 6 Replies
View Related
May 30, 2011
I want to block a list websites from myself using a password that I don't know.I would randomly generate it or something.Everything revolves around sudo, though, so I don't know how.Long to short: how do I blacklist websites using a password other than my sudo password.
View 2 Replies
View Related
Jul 1, 2010
here i would like to inform you that my company ask me to block facebook site at the work time it is: 08:00-12:30 and 14:00-17:30 in proxy server.i'm still confuse how to do!i need the details configuration in squid regarding how to block the sites
View 2 Replies
View Related
Dec 14, 2010
I have been using lynx for sometime specially when on a slow connection. I was wondering if there's a way of accessing flash-based websites (completely flash-based) using lynx?
View 9 Replies
View Related
Nov 18, 2010
I had Fedora 12 installed on my laptop and everything was working okay.
After making a fresh install of Fedora 14 I can now only access some websites, others cannot be found.
I have spent hours trying to resolve this without success.
View 3 Replies
View Related
Aug 4, 2011
I just installed Fedora 15 and everything is working ok except i can't connect to some websites such as facebook or hotmail. I tried doing the same on windows and everything is ok there. I've been searching through forum about this problem but nothing seems to help. Has anyone else had this kind of problem and managed to fix it?
View 10 Replies
View Related
Apr 26, 2011
I have been studying LAMP for a while now and all my websites are on the localhost. But if i wanted to access my websites from a different computer, how do i access do that? LAMP (192.168.0.2) client (192.168.0.3). Do i need to setup the DNS servers as well in my home network for me to access my intranet (LAMP).
View 2 Replies
View Related
Feb 23, 2011
Linux Mint 9 Fluxbox
Firefox 3.6.8
Even when I don't disturb anything while browsing, random sites start
launching (one at a time)!!
>Example:
bash.com
gifts.com
<LQ member username>.com
sex.com
I usually browse Lq, and all this happens while browsing Lq threads,
and sometimes other websites too!
View 14 Replies
View Related
Jun 21, 2010
recently I have bought a new wireless router and now I have problems connecting to some (secure) websites. I can't login to gmail and facebook while I am still able to connect to these sites using my old router. I have also tryed to connect to these sites using my new router on windows and it worked with no problem.It is really strange for me, although I don't know that much about networking. I am using Fedora 13 and a TP-Link (TD-W8901G) Wireless router and I have these problems using both wired, and wireless connections with this router.
View 5 Replies
View Related
Aug 28, 2010
I am in the process of setting up my own Linux gateway/firewall using two nics eth0(external network) and eth1(internal network). The Linux gateway hands out ip addresses using dhcp3-server, and uses iptables to route the traffic correctly. Clients are able to connect and access the internet...everything is working great, HOWEVER I can't access my apache virtual hosts websites from the internal network? They work just fine if i access them from the outside world
I can type ip of the web server, 192.168.0.201 and it shows the first virtual host listed in my /sites-enables/000-default folder. but i can't use any DNS entries. I don't have any internal DNS servers running. This doesn't makes sense, because if i replace the linux firewall/router with my normal linksys wrt54G router it works just fine.
View 4 Replies
View Related
Apr 1, 2010
I have managed to configure AWstats to work from one server to access the log files for multiple websites on multiple servers and even managed to write a little front end php site to access all the different conf files. I want to know if there is a way of combing two conf files for the same site but are on two different servers in a loadbalanced situation. so my conf files look something like: [URL].. I have to monitor bandwidth for our websites and its gets tedious switching between the various conf files for the same site and totaling it up so I was hoping I could combine the output of both conf files on screen using some funky command in the awstats.pl script
View 1 Replies
View Related
Apr 15, 2010
A computer security researcher has released a plugin for Firefox that provides a wealth of data on Web sites that may have been compromised with malicious code.
The plugin, called Fireshark, was released on Wednesday at the Black Hat conference. The open-source free tool is designed to address the shortcomings in other programs used to analyze malicious Web sites, said Stephan Chenette, a principal security researcher at Websense, which lets Chenette develop Fireshark in the course of his job.
View 1 Replies
View Related
Apr 20, 2011
First off, since this seems like a networking issue I put it here, but if it should be somewhere else, the powers that be should definitely move it over.
I'm using Ubuntu 10.10 on Dell Presario M2000 I have made sure that all updates have been done.
As the subject states, the admin account (mine which I'm posting to the forum with right now) can access the internet and see webpages. The user account on this laptop (my underaged sister who my parents don't want full access to the computer) will not access any webpages, it just continually looks like its loading.
I have made sure the wireless card drivers are installed and activated.
Also, I ran iwconfig and ifconfig and here are their results
p { margin-bottom: 0.08in; } Results of iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"myqwest4137"
[Code]....
These were both run from the user account. At this point it looks like its connecting to the internet through the wireless card as I was also able to run the update manager through the user account and have it download the updates (after putting in my admin password of course).
View 2 Replies
View Related
Jul 7, 2011
I have ubuntu 11.04 in my netbook and when I inserted reliance netconnect broadband usb modem,it automatically detected and after giving the necessary details it was connected..But I am not able to access any websites..On googling I found that I have to make changes to /etc/resolv.conf..But resolv.conf file is missing.
View 9 Replies
View Related
Mar 7, 2010
I just installed Opensuse 11.2 dual-booting with Windows 7 on a laptop. I have the wireless set up and connected, but I can't seem to be able to connect to any websites or ping Google, etc.I'm kind of a Linux newbie, so I'd like to get some advise as to what I can check to get it working? (Windows 7 on the same machine is able to connect - I'm using it now)
- I've tried both automatic DHCP configuration and also setting the ip/dns server manually, no luck
View 4 Replies
View Related
Nov 21, 2010
My internet connection used to be a direct LAN connection to my provider. Back then, everything would load fine on both Windows and Ubuntu (dual boot). However, a while ago they started needing me to dial using a username and password (over a PPPoE connection). But since then, I haven't been able to browse certain websites on Ubuntu, even though there have been no such issues on Windows. Some example websites are - Ovi's sign in page (although share.ovi.com loads fine, and nokia.com loads fine), Live Mail (works on Chrome(ium) and Opera but not on Firefox (both 3.6 and 4)) and other random websites.
Some of the websites that don't load show timeout messages on Chrome and for some websites, the browser will keep trying to load without an end (I've left it like that even for hours but not noticed anything different happen).
I have tried changing the DNS servers to the ones suggested in the comment. I have even tried booting from a Fedora LiveCD and then changing the DNS to those (and even to the ones of OpenDNS), but the exact same thing happens. Here's output of ipconfig on Windows: Opera error messages seem to be a little more informative and they have the following errors in turns:
Secure connection: fatal error (552)
Secure connection: fatal error (40)
Followed by: Opera was not able to connect to the server. The server may be using the unsupported SSL 2 protocol, which is not considered safe enough for secure communication. The site owner should upgrade to TLS 1.0 or newer. Does anyone know why this is happening and how it can be fixed?
Update: Just saw here [URL].. that someone else was having similar problem and solved it by putting a NetworkManager.conf file in /etc/NetworkManager. What needs to be in that file?
View 1 Replies
View Related
Sep 23, 2010
I have configured my squid that have a limited access to websites but still some website were accessable vis https so I removed transparent from squid. Now what changes do I have to make in iptbles
View 1 Replies
View Related
Dec 25, 2010
I am facing a problem concerning secure websites where I get the "Connection Reset" error in browser after a timeout of I think 1 minute.
OS: Fedora 14 ( I faced same problem with Ubuntu 10.10 )Browsers: Chrome and Firefox
The issue is not there on Windows using Chrome and Firefox so I believe this is a problem with how linux manages secure connections. I can access all the google secure websites too. There a few other websites apart from facebook.com that I know which I am unable to access.
View 3 Replies
View Related
May 22, 2011
i was tasked to setup a proxy server to block access to some websites. i'm using centOS 5 and Squid 7:2.6 STABLE21-6.e15...i appended the following and tested the configuration with the supposed server i am using and the it does seem to work but now i'm wondering how i can test it with a client computer..i have 2 LAN cards and i just connected the other to one PC (can a direct connection work or does it need to pass thru a switch or hub)...i just can't figure out how it should be... how do i configure the 2nd LAN card to use this computer as its proxy server?
View 8 Replies
View Related
Apr 21, 2011
I want configure open source firewall on my office for websites blocking and bandwidth monitoring.
which is the beast free open source firewall..
View 9 Replies
View Related
Feb 20, 2011
I want to disallow usb port when it is connected...I tried sys/bus/usb/devices/power/level=suspend but still i can see that usb device and have access to that usb device . stop access to a particular usb device which is connected to Linux system...Also i tried ioperm() but i cannot find usb port no. which is required for it...Also i want to do this by C++ programming
View 1 Replies
View Related
