I don't use Ubuntu, but I do occasionally recommend it to others. Does Ubuntu have an automatic set up of a firewall, or do users have to install one on their own (IE, install a program such as firestarter, fwbuilder, shorewall, pyroman, or guarddog)? How do Ubuntu users generally set up a firewall?
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I suspect this is an initial configuration bug. All firewall logs seem to be going to all
three files. That causes a lot of clutter in the log files, and makes it difficult to see whether there are any serious problems being logged.
I am learning to setup firewall in my home for that i have selected four system(sys1,sys2....sys4) for testing .I have configured sys2 to act as a firewall with two NIC. sys3 and sys4 are inside the firewall . sys1 is not connected to firewall for testing purpose.
the IP assignments are follows :
sys1 : ( fedora, not connected to firewall i am thinking, But i am not sure )
IP : 192.168.2.1 ,
gateway : blank
dns1 : blank
dns2 : blank
sys2 firewall ,IPTABLES )
code....
what happened is that sys1(not connected to firewall) can ssh to sys4(connected,inside firewall),since the rules are written not to ssh form sys1 to sys4..
then I came to know whatever the request I give, It directly goes as sys1 --> sys4. Not as sys1-----> sys2(firewall)---> sys4 .and the firewall is not filtering and processing anything for both inbound and outbound (i think it's my mistake some where). the requests are directly going inside without firewall.
I'm trying to build firewall on Debian with 'Firewall Builder'. But it won't let me compile and run unless one interface is set as management. There are two interfaces on my computer: 'eth0' and 'lo'
I don't want to be able to configure firewall remotely, so could I use 'lo' as 'management interface'?
Can we use iptables as firewall instead of Juniper firewall
View 2 Replies View RelatedSamba is working correctly if Susefirewall2 is off. I have added Samba client and Samba Services for extern access but samba is not working when firewall is now on. Which services should I also add ?
View 1 Replies View RelatedI'm installing Hardy Heron on several old Dell's and donating them to less fortunate folks. Is there a way I can set it to automatically log-in at startup, not require the password?
View 2 Replies View RelatedI'm already aware that you can set automatic login for gdm, which is what i currently have now.
Unfortunately, for some bizarre reason, it doesn't work 100% of the time. I'd say for about every 10 successful auto-logins, I get a case where it just sits at the log-in screen. This is a problem for me because i use it for a specific purpose, and i need Ubuntu to come up as fast as possible, without any user interaction.
So far my only workaround has been to reboot it whenever it does a bad start (where it asks me to log-in) and usually when the PC reboots, it will auto login fine.
I've given up trying to find out why it does that, so i just want the log-in screen gone entirely. I've searched on google and on this site directly, but no one else seems to have this issue.
My LAN internet will not work on my ubuntu computer. I have been told that its because ubuntu downloaded an update that changed my IP adddress from automatic to static. how to change it back and prevent it from happening again?
View 4 Replies View RelatedI didn't find a solution to making my 3G/GPRS "modem" reconnect automatically when the connection fails, so I made a solution of my own. It's very annoying when you're downloading a file overnight, only to find that the connection has failed 5 min after you went to sleep.Restarting the NetworkManager daemon makes it automatically connect to all configured interfaces, including 3G/GPRS, so I made a simple script to do that.First, we check if the modem is even connected. Replace Huawei with the brand you're using. Any unique word on the line in lsusb will do fine as well. Then we check if the connection is up, and if it is, we simply exit. Otherwise, the NM daemon is restarted, which causes the 3g/gprs to reconnect.
View 2 Replies View RelatedIs there a way to take a screenshot just before the "shutdown" terminal command? for example "sudo shutdown -h 90" for 90 minutes timer shutdown, and just before turning off to take a screenshot.
View 1 Replies View RelatedOn one of our Lucid systems, we encounter frequent automatic log-offs - without recognizing any reason: The only common fact appears to be at least one further user being logged in (with graphic desktop).With no advance warning, the active user's screen first goes black, shortly after that, the KDM log-in screen (with the name of the automatically logged-off user) appears. Where the currently active user is lucky, it is not his own name and he can simply switch back to his desktop...Something in fact appears to crash: Programs that were running for the automatically logged-off user are obviously simply killed. (OOo next time starts with rebuilding lost documents, KMail forgets about currently edited eMails.)
View 3 Replies View RelatedMy laptop running Ubuntu 10.04 insists on automatically logging me in without asking for my password. The only thing is, I've disabled auto login and it shouldn't be doing that.
When I first boot up Ubuntu all I have to do is select my username, no password required to log in. I want the login screen to prompt me for my password for better security.
Here are the settings I already have:
System - Administration - Login screenSet to "show the screen for choosing who will log in"
System - Administration - Users and GroupsI am the only user I have an Administrator level account "Don't ask for password on login" is unchecked, i.e. it should ask for my password on login. If I create a new user with the same settings, that user gets asked for its password. But I don't.
Surely this should be enough to disable automatic login.
I installed Ubuntu on a machine of our laboratory. Since we are at the university connections may pass through a proxy (whose url we ignore). All things concerning system update are nearly unusable. Several posts say to add in apt strings like $ export http_proxy="http:" $ export ftp_proxy="http:" but I don't know the url proxy at all.Firefox is set to "Direct internet connection" and all work well. In Windows all connection properties were set to "automatic" and updates were ok.Is there a way to have an automatic recognition by apt?
View 4 Replies View RelatedI have enabled automatic login in Lubuntu, and have now added a second user, I want to DISABLE the automatic login, or perhaps change the default login. The usual Ubuntu admin window for this does not appear to be available. Where in the conf files this setting is, and or whether there is a GUI that controls this.
View 9 Replies View RelatedI have Ubuntu Lucid and am wondering how to have the wallpapers in the Background tab of the Appearances dialog box update automatically when I add a wallpaper to /usr/share/backgrounds. Or should I be putting them somewhere else for this to happen? I have several accounts on my computer and can't go into each account and manually update whenever I add a wallpaper
View 3 Replies View RelatedIs the a way to turn off my external HDD automaticly when I shut down my computer ? Its a HTPC running Ubuntu 10.10, the HDD is a WD 1TB disk in a IcyBox. There is a on/off button, but the HDD is not easy to get to, if you understand. It would be great if I could turn it off. It has been on for a LONG time now...
View 6 Replies View Relatedrecently installed Ubuntu Server 10 everything has set up just fine but the only problem i have is to get ubuntu to login automatically. The main reason for this is because i havent got a monitor connected if for whatever reason the server restarts its hanging at the login screen and i cant login via vnc to the desktop. The furthest ive got is for it to say at the login screen next to the name (user logged in). Any Ideas on how to resolve this? or if it is possible?
View 2 Replies View RelatedI am logged in as a new user and the desktop is logging out.So how do I keep it up all the time?
View 5 Replies View RelatedI've been using Lubuntu for the last 4-5 months as a virtual web server, for developing Joomla sites. I have been extremely happy with it so far. (Runs with ~300MB memory just fine)A few days ago I installed some updates and the next time I rebooted the login screen was different and I couldn't log in to the graphical environment any more.I hit Ctrl+Alt+F2 I can log in to the console bu
View 3 Replies View RelatedI have Windows XP and Linux Mint installed on my laptop.I'd like more than a few seconds to choose which OS I want to run.How do I fix this? Please explain it as if talking to a 6 year old as I'm new to Linux.
View 6 Replies View RelatedI am unable to download packages from synaptic. I am at a school that uses an automatic configuration url with a proxy.pac file. How can I get synaptic to work with this proxy?
View 5 Replies View RelatedI have a problem while rebooting my 9.10 server when I have SAN partition mounted. The message is something about the swap that can not be cleaned during the process. All works if I unmount the partitions before shutting down or rebooting.So I though to create a bash script that unmounts the parts during runlevel 0 and 6.I've created a simple script like this in /etc/init.d:
#!/bin/bash
umount /mnt/xxx
and the I've done:
[code]....
Linux/Ubuntu noob here so please be gentle So I own an Ubuntu server (7.10 - "gutsy") which was previously used for my small business. All setup and maintenance of this server was done by an admin who has since moved on and I can't get in touch with.As part of the setup, this admin has somehow setup the server such that whenever I plug in an external HDD (USB) it automatically runs a backup script which copies over a whole bunch of stuff to this drive.I want to cancel/delete this script as this is no longer necessary. Can anyone give me any pointers as to how I could track down where this script is and how to remove it?
View 2 Replies View RelatedI like the faster boot of 10.04, but how do I get smbd to start automatically on a boot up?
Every thing is fine if I sudo service smbd start but I don't see where I'm supposed to have it run automatically on a reboot.
I've setup pam_usb to allow me to log in with just my usb drive. This works fine, save for one issue. When I log in using pam_usb, my session dies abruptly if I unplug the usb drive.I am _not_ runing pamusb-agent.It seems like there may be some issue with policykit, but I'm not sure./var/log/auth.log:
Code:
May 28 20:42:10 nitrogen gdm-session-worker[1836]: pam_succeed_if(gdm:auth): requirement "user ingroup nopasswdlogin" not met by user "dschep"
[code]....
Ubuntu 10.04 performed an automatic update today which required a reboot afterwards. The reboot took me into a shell "GNU GRUB version 1.98-1ubuntu6", rather than the usual grub boot menu.
View 2 Replies View RelatedLucid was working okay for a few weeks. I believe this issue came up anew in the past few days after a recent system update. The (desktop) system when idle for x amount of time (likely > 1 hour) just shuts down while I am off doing something else. That is bad when downloading a large file that has to be started from scratch again (826 Mb of an 875 Mb file).
I have had to revert back to Hardy (kept in a separate partition) in order to get these wanted downloads. But I do a lot of downloading of film files, so this will be an ongoing issue until I can somehow correct it. I went through the screen-saver options/power management settings, found nothing unusual there, though I am not real certain of all the terminology there.
I don't know how it came and how to disable it but here is something that will turn me crazy:with Lucid, when I select an URL (or a part of it), an automatic context (popup) menu appears and shows me different options like "Open in Firefox", "Send URL", "Open in Mozilla" and "Open in Opera".I really would like to disable it because I always have to press "Esc" to be able to do a copy-paste.We are a few on the french forum to have the same problem and we cannot find a solution, so I try the "international" forum.
View 7 Replies View RelatedI wonder if anyone knows of a cross platform sync/backup utility that can do the following:
Incremental backups Revisioned backup (possibility to not just restore the latest but to go back to a specific point in time) Two way sync. E.g. two computers sync to the same server and the server also pushes changes to the clients (well I suppose it might be possible to solve it by restoring the latest backup also)
Cross platform: Linux, Windows & Mac (the server side may be Linux only)
Basically I want a revisioned version of Unison or a local version of Dropbox with support for custom folders. Depending on how you see it.
I'm not afraid to script things together if no pre-built solution exists but there are tools that when combined might do this. However it must be possible to automate, this comes from the fact that I want to be able to schedule it so it performs automatically. (If there is a way to push changes to the computers, like Dropbox, that's a plus but not a requirement.) This also means that a command line utility might be preferable over a GUI-only one.
