Fedora Networking :: How To Manage SMB To Work With Firewall
Mar 25, 2009
How can I make iptables allow my windows client to see my PC / smb shares? When I turn off the fedora firewall it just works fine, but how can I manage smb in a more secure way via iptables to work?
Code:
iptables -A INPUT -s 192.168.0.0/255.255.255.0 -j ACCEPT
But where do I get the correct address from? Will this example allow only 192.168.0.0 (is this a valid IP at all, usable by any PC? ) or anyone in the network (aka 192.168.0.*) to access my share?
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Apr 25, 2011
I would like to manage the firewall from the command line or with files VIA puppet, however this peice of software seems pretty complicated compared to the other distributions and generic iptables commands / configurations we push out.
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Jun 3, 2011
I'm using Fedora 14 with gnome as my GUI.As you know , there's gui tool which manages network adapter , either wireless or wired.After every login into fedora , I should click on network manager icon on taskbar and choose System eth0 to establish and enable eth0. I want it to be done automatically.
Previously , I used opensuse 11.4.It has a tool in yast which allows you to choose how to configure your network adapters , traditional or knetworkmanager mode.I can't find this like tool in gnome on fedora.
how I can configure network adapters to start or not during startup?
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Dec 10, 2010
is there an Xwindows client to connect to my FC14 server to manage it? Like not Xindows on the server but on a windows machine. Are there other, better ways to manage it?
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Apr 6, 2011
I got myself into some trouble this afternoon when I thought I would give xmonad a try on my HP mini 210 that runs f14 lxde spin. so, after installing xmonad and dmenu and playig around a bit I found out that my wifi doesn't work. I tried ifup but I get the 'usage: .." response which I have read means that the programm can't find a configuration file for the device (and I am pretty sure that some programm was managing these files for me up until now).
I have tried to run system-config-network, which defaults to the tui version for some reason, I guess at this point that the normal gui is based on the gnome backend or something? Anyway, the terminal version just outputs a bunch of info about the devices that exist on the system (eth1 the broadcom wifi device is also listed) and then exits.
Anyway, in the normal lxde desktop you could use the gnome network manager, I guess this is not the case when running xmonad. So how do I do this? Links to documentation are welcomed. EDIT: some info about how I get to xmonad, the machine uses the standard LXDM login and from there I just select the xnomad window manger before logging in. I mean I am not trying to use it on top of anything else (eg. xmonad/gnome or xmonad/lxde etc.)
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May 30, 2009
im using fedora 10 with gnome on a laptop, i want to increase power to my wifi adapter as im only getting 40% connection strength to the nearest wifi AP (about 20 feet) in windows under power management there is a slider with best performance against battery life, is there a similar setup in fedora 10? ps, if explained fairly well, i dont mind shell scripting (bash) and compiling.
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Jul 24, 2010
I am using pidgin messenger. Its not connecting properly as our Internet is blocked by a firewall. Can we do something so that it works properly
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May 18, 2010
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.
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Jan 28, 2010
i have to deal with reverse proxy issue and want to access few LAN devices having port 5900 and 9999, what exact steps i have to follow to allow this port in fedora firewall.
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Nov 28, 2009
The firewall in Fedora 12 seems to block UPnP by default, but opening port 1900 for UDP, as I have seen suggestedes not resolve the problem.have the following three scenarios:Firewall Enabled: Transmission cannot open a port by UPnPFirewall Enabled (1900 UDP allowed): Transmission cannot open a port by UPnPFirewall Disabled: Transmission opens a port via UPnP fineAny ideas? Yes, the port that I'm trying to open is also allowed. Router is a Linksys BEFSR41 v4.3, should you care
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Nov 29, 2010
Even though I've set up HTTPS to be trusted, it still blocks my school's https site: "mnsu.edu/eservices" same with SAMBA and SSH.
If enter the GUI and authenticate as root, change anything and apply, then exit: it works fine and so does SAMBA. However, after restarting, everything stops working again.
yet secure firewall configuration that doesn't require any login or headaches.
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Jun 17, 2009
Since I installed FC11 I can't get vpnc to work (I always getno response from target").Also I can't ping any external IP even with the firewall disabled.What I see strange is that I had the same configuration in FC10 and the router configuration seems okay to me:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.64.64.64 * 255.255.255.255 UH 0 0 0 ppp0
[code]...
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Aug 8, 2009
I want to write a custom rule to allow all connections to the ip addresses on my local network (192.168.2.2 through ...99) but I don't know how. I know adding a custom rule asks me to read a file and put it in "iptables" format, but I don't know how...
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Jan 20, 2010
I'd like to have an easy way to configure firewall, e.g. eable/disable what mythtv needs, or enable/disable what mediatomb needs. Basically open/close a few tcp and/or udp ports for all interfaces (I have two), or just one of them.
Is there a way to add my own trusted services for the firewall?
Other recommended ways to do that? Or just write a simple shell script?
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May 14, 2011
I am new with IP tables stuff and i have a problem....i have a pc Contain a fedora OS and i want to make a small network (4 PCs Contain XP OS) and using the pc of fedora OS as a firewall i want to Prevent the ping (i think it called(ICMP)) in the privat network and prevent one of the PCs from Browsing internet(prevent port 80 and 81 as i think) and i still don't know how to make the internet go Through the firewall to the private network...
Note: WAN = eth0
LAN = eth1
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Aug 23, 2010
I am a bit new to fedora I have the following scenario in testbed of mobile ad hoc network
pc1 pc2 pc3 pc4
192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4
Now I have the source as pc1 and pc4 is destination and I want to send data/ping pc4 from pc1 via pc2 and pc3 using firewall firestarter,
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Jun 3, 2011
I'm working on setting up access for our developer via Telnet, we are on a local network behind a physical firewall. I set up the standard Telnet service for Fedora15 and from localhost I can login via any user and root.... However I cannot login from another terminal on the LAN, even though I can ping and FTP to the fedora15 box. I added the firewall rules for telnet, that did not work, so I disabled the firewall, still cannot get a connection via port 25. I feel either port 25 is closed in another manor or the telnet is restricted to the localhost.
Also I cannot login to root to configure the Firewall Desktop GUI, only standard users, is this an issue? I also cannot login to the console as root even though I use the correct password.I can only su to root and sometimes it is a PITA. There must be some settings to clear these issues up...
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Mar 13, 2011
I'm getting a timeout error from NetworkManager when attempting to connect to my router/firewall.
Excerpt from /var/log/messages attached.
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Mar 7, 2011
I am using SQUID 2.6 on cent os. Squid as a proxy server is working fine. I want to manage my bandwidth according to my office staff.Like for top management users may allocate 1 MB and rest of the users as 256 kb.Kindly guide me that how can I do it ?
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May 12, 2010
i'd like to know how many rule can manage iptable. I'm asking that because i'd to drop all traffric from my localnet to porn site. I've a database of porn site witch contain about 900 000 domains. I know there are solutions like squidguard. But for my linux box i'd to use iptable to prevent users access to porn site and other blacklist site.
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Feb 21, 2011
Lately I have been trying to get my laptop up and running online on uni campusnet but the problem starts with the network programs beeing not compatible with linux. I send an mail to IT support at uni and he told me to just create VPN connection with given gateway and add username and pw after request but I dont seem to work. An VPN connection has been made and tried out but it just sais failed to connect,
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May 14, 2010
I set up some a kind of home network via wireless router, one computer is dedicated for a rtorrent client.Now I want to handle this rtorrent remotely from my desktop (not only via console or screen on a rtorrent host). I want do the following things: a) start b) close and most important load new torrents on demand from my desktop.
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Jun 11, 2011
Is it possible to manage the LED of the box (desktop) ? (I'd like to light off the main led when suspend rather than it wink at - I've looking for a LED entry in /proc bit find nothing)
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Jun 15, 2011
how to setup centos to act as router and firewall at our office i just installed the os now i dont know where to go from here i have all the isp adresses,dns and gateway any assistance coz am really interested in learning linux thanxs iused some instructions on this site [URL] and when i try the /sysctl.config on my terminal now i get the message permission denied
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May 5, 2010
I have a computer which has a public IP.My ISP has allowed only port 22 for my machine to be accessed outside from internet.I want rest of my computers which are connected to this machine be accessible via SSH on internet.I can configure IPTABLES to route different ports to internal machines but since ISP has given only one port for the gateway how can I go for it any guesses. I came across some thing reverse SSH tunneling but that has to keep the connection alive all the time at gateway I want my trusted people to be directly able to access the machines on LAN to which they have account to login in this scenario.
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May 25, 2010
I'm running ubuntu lucid and i was thinking in purchasing one or more extra wifi cards to try to configure my computer to manage different conections at the same time, with different isp's. The thing is that I'm not quite sure if what i want to do is actually possible.
The easiest way that crossed my mind was to try to configure a / multiple virtual machines that are redirected threw proxies to ubuntu and try to configure that each proxie port goes threw a different internet gateaway. This way i might be able to divide threw different sessions of JDownloader, installed on each virtual machine, the things i want to download. The negative aspect of this idea is having multiple jdownloader sessions will make my laptop work to almost 100% for sure...
Another thought i have was to make JDownloader manage its downloads in only one session redirecting them to my internet conections; the negative thing is that i think i will have to try to modify its source and learn java...
And well my last possible configuration i had in mind was to try to make ubuntu directly add up all my internet conections manage as if it was one. the negative thing here is that i might not be able to get multiple downloads from some sites
Well, all this where just thoughts, im struggling whether to buy another card or not to try to setup any of this configurations but im not really sure if any of them are actually possible. Is there an easy way to manage this?
I just want to take the most out of my internet conections... if i'm at college i have to options that are quite slow, adding them up with two cards would be great, i might also be able to add a third and a fourth conection. Also if i'm on a coffe and i need some bandwith i could try to make it go with an open network arround, etc.
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Jan 24, 2011
So I am trying to install my Realtek 8191SU wireless Driver but because I am a noob I don't understand everything that they say in the read me file from where I downloaded the linux version of this driver. The Realtek 8191SU wireless driver can be foun here:
[URL]
how to instlall the driver but I don't know where driver directory is. Here is the site
[URL]
I use and acer aspire Z5751 and I have ubuntu 64-bit installed.
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Aug 6, 2010
if ubuntu netbook remix have a built-in firewall, and how does this firewall work when i install applications like Valknut? Do i have to change firewall, or does it make the changes automatically? If i need to manually change open ports in firewall, then i want a easy to understand gui, if there is one. I want to add port-ranges, with options [tcp],[udp],[both] or single ports with same options. Im looking at Guarddog, since i installed all deps for Guidedog. how Guarddog would behave with ubuntu's config?
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Sep 15, 2010
I am using Fedora 13 and have an intermittent problem with the printer(HP d2540). Periodically, the printer will not finish a print job or the software leaves some form of command that interferes with the subsequent jobs. I haven't had much luck finding the print queue. Typically, the print jobs are coming out of the OpenOffice word processing segment and I am not sure whether there is an actual problem or simply a page formatting error.
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Jun 24, 2010
I think I have encountered a problem in the way that lucid handles proxy servers. I was having problems running apt-get update due to a firewall at my work. I also noted that I was getting 403 Forbidden for wget. So I went to System -> Preferences -> Network Proxy from my account (which has administrator privileges) and input the http address for the proxy server, and then clicked the button to "Apply Systemwide...".
Following that change, wget worked from my account, but whenever I tried to sudo apt-get update, I got the 403 forbidden response again, even though I could wget the same files that apt-get reported as forbidden. I figured that this was a problem with the root account, and so I typed
Code:
However, upon exiting from the root account, and trying to run sudo apt-get update again, I got the 403 forbidden code again!
So, it seems that the proxy settings are not being applied systemwide.
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