Networking :: How To Disable Networking On RHEL5
Apr 8, 2010
I have an HP workstation running Red Hat Linux 5 that is currently configured for a static IP connection. I wish to keep the existing network configuration, but I want to be able to use the workstation and log into my accounts when I am not connected to the network. I have tried using the following methods to disable the network with no success:
1. I set the "ONBOOT" parameter of the ifcfg-eth0 file to "no".
2. I set the "Networking" parameter in the /etc/sysconfig/network file to "no".
3. I moved the /etc/resolv.conf file to /etc/resolv.conf.OFF
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Aug 6, 2009
Please let me know what configuration need to be made so that root user
will not be able to log in via gui.
I am aware that taking out tty? from /etc/securetty would result in root not able to log in via CLI modes.
Similarly what is the configuration needed to make that work in GUI.?
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Mar 6, 2010
My RHEL5 server is sync with NTP server. But we dont want to follow Day light saving. Is there any option to disable it. Like in windows you can uncheck the option if you dont want to follow day light saving.?
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Jan 10, 2010
I suffer enormously from net addiction (as well as gaming addiction and related behavioural maladies).I've had revelatory success in controlling my time online-and, in general, in front of a screen with unproductive applications- by locking my monitor's power cord into an Ems PowerCop (the key to which I keep at work). Writing and journaling, I do on an AlphaSmart Neo. However, I could really use a tool to allow me to edit and typeset my writing (and only those tasks).I'm considering buying an ultra-low cost net-book.I want a netbook because it's the cheapest way to keep the display power fully dependent and integrated with the machine---I can't have something that will allow a simple means of working around the Ems PowerCop. Also, since it lacks an optical disk drive (and since I'll be keeping my usb drives at work) there will not be an easy way to reinstall the operating system. However, before I buy anything, I need to know that, after installing/configuring all of my preferred settings for vim and La/Xetex, there is a way that I can cripple the netbook and all of its applications so that no internet access is possible.
The Cherrypal Africa can come with either Ubuntu, Debian, or its own Linux blend, Green Maraschino. If it ends up being either Ubuntu or Debian, what can I do that will irreversibly (at least, from a software level---a hardware level would probably require damaging the usb ports, which I don't want to do) disable its ability to try to communicate with the internet (including the software repositories)? I'm hoping for a particular system file that I can delete rather than the addition of a command somewhere that would be easy for me to undo when I'm bored out of my mind and want to see what Wikipedia has to say about the glycemic index.
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Jan 29, 2011
My wireless can connect to my router without a problem, but in order to do so (after boot) I must first disable networking in the Notification Area and then re-enable it. I don't mind it too much, but when other people use my computer, it's made painfully obvious to me, that this was never an issue with Windows 7 (as much as I despise MS).
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Sep 8, 2010
I have installed RHEL-5 (2.6.18-53) on my Desktop (ASUS Motherboard with Realtek PCIe GBE Family Controler 8168). After installation eth0 is not detecting. I downloaded R8168 drivers from Relatek site, but I am unable to install as it's throwing the following error.
Wed Sep 8 21:49:41 IST 2010
make -C src/ clean
make[1]: Entering directory `/root/Desktop/REALTEK/r8168-8.019.00/src'
rm -rf *.o *.ko *~ core* .dep* .*.d .*.cmd *.mod.c *.a *.s .*.flags .tmp_versions Module.symvers Modules.symvers Module.markers *.order
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Feb 3, 2011
my company there is 1 RHEL5 server and around 50 systems connected to it( running windows ). I want to know who is pinging or telneting to the server how can I find this information on the server OR where should I look for this information in the linux.
if I want to explore on this topic (i.e. who is trying to connect to server, from where user accessing server, whats his/her ip, whats his/her os etc. ) where should I look for it on the net ??
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Apr 6, 2010
i need the steps for squid installation on RHEL 5 step by step cz i am new in linux ( assume that i have the squid package in usb stick ) .
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May 13, 2011
At work I have been given the "opportunity" to provide admin support on a bunch of RHEL3, 4, and 5 servers. My latest problem is, as the subject hints at, adding persistent (or permanent) routes on a RHEL5 server. I've successfully done this with a couple of RHEL4 servers by adding the relevant information to the /etc/sysconfig/network-scripts/route-eth0 file like this:
GATEWAY0=xx.56.200.129
NETMASK0=255.255.255.128
ADDRESS0=xx.56.200.250
On the RHEL5 servers I do not see a route-ethX file. Do I just add the file and the route info? Or has this functionality been moved to another location?
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Apr 6, 2010
i need help to create a PPPoE Connection ( Breoadband)using RHEL 5 cz my ISP use this type of connection .Plz if there is someone can show me the procedure step by step.
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Apr 1, 2011
I have a user using Mac OSX and ssh-ing to a couple of Redhat servers, one running RHEL5 and the other RHEL6. The user's connection seems to be timing out after 60 minutes or so of inactivity. The user is on the same subnet as the servers. Both servers have the same sshd_config files with the following entries with regards to timeout:
TCPKeepAlive yes
ClientAliveInterval 30
ClientAliveCountMax 99999
In a nutshell, his office Mac keeps getting dropped off both machines. Other machines, including the Mac he logs in with from home doesn't get timed out and keep the connection open. The log files are unremarkable and the switch port shows no errors
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Jan 9, 2011
I am a Linux newbie, where can I find the rtl8191se driver for rhel5.2?
And how can I install the driver?
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Apr 27, 2010
I'm new to Linux, i have couple of setups like
1. RHEL5 (2.6.18-128.el5) running fine on VMware(6.5v)
2. RHEL5 (same version of ker) running on Laptop (DELL Latitude D710)
there is a wireless modem which running at home with that i was being able to access the internet from VMware image running with RHEL5.
BUT internet does not work from the laptop. Network manager are running on both VMware image and Laptop.. What is the steps i need to follow to get WiFi Enabled so that it should pick the ipaddress from Wireless Modem to get internet access to my laptop.
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Nov 13, 2010
in RHEL5 I want to configure wireless on my laptop but after many procedures followed none of them worked? how to do it? my laptop is HP520
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Jun 11, 2009
Need a bit of help from the linux community. Lately, I have been trying to configure squid as transparent proxy on my server running on RHEL5. I had gone through few articles on web abt how to configure it and configured squid accordingly adding http_accel_xyz settings and then configuring the NAT using iptables. But while restarting squid there were warnings about "unrecognized: http_accel_..." in parseConfigFile.What I could get from these is that probably I need to recompile squid adding transparent proxy support. I downloaded the new squid 3.0 and tried to compile it.But unfortunately, the 'make' command fails giving library errors.I have been stuck with t now as the new squid does not compile and old one does not support the transparent mode.could compile the new one and what supporting libraries do I need to compile it successfully and also from where can
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Apr 11, 2011
I got iptraf and netconfig command not found in my system(RHEL 5 ).
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May 24, 2010
I have a problem with new installed machine. i have installed RHEL5 2.6.18-92.el5xen kernel and configured 2 network cards.
DEVICE=eth0
BOOTPROTO=static
#HWADDR=xx:xx:xx:xx:xx:xx
ONBOOT=yes
NETWORK=192.168.6.0
NETMASK=255.255.255.0
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Jun 17, 2009
I want to access RHEL5 by remote desktop from windows XP.
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Sep 8, 2010
Is it possible to do jboss application server fail over by using heartbeat on rhel5?
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Sep 5, 2010
I tried to run FreeRadius1.17 in RHEL5 using PEAP authentication.#radiusd -X Run fine.authenticating only one user.if "user" is authenticated and second user "user2" just looping and will not authenticated. Again if "user2" authenticated "user" is looping?here the logWaking up in 4.5 seconds.rad_recv: Access-Request packet from host 192.168.0.3 port 1028, id=239, length=219
User-Name = "user"
NAS-IP-Address = 0.0.0.0
Framed-MTU = 1488
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Aug 30, 2010
I was told that the reason I'm having network performance issues is due to "generic receive offload" on eth0. I was told to use the following command:
Code:
ethtool -K eth0 gro off
Does anyone know what exactly this is disabling / correcting for my NIC performance
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Sep 30, 2010
Is it somehow possible via software to disable NIC in such manner, that even "link protocol" in Cisco switch will not come up? I connected laptop eth0 port to switch port and console cable to switch management port as well. If I do "ifconfig eth0 down" or "ifdown eth0", the link protocol still stays up. Even after "modprobe -r e1000e" autonegotiation between NIC and switch port takes place and link protocol comes up As far as I know, there are no possibilities to disable NIC using the ethtool or mii-tool.
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Aug 24, 2010
I want to make a kernel module that its function is like ifup/ifdown. However I could not find any way to do that.
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Aug 13, 2010
I have 2 NICs on my computer connected to 2 different networks. On 1 interface i wish to disable the return of ping and on the other interface i wish to still allow ping. Is this possible? Both interfaces need to be able to send and receive data. I know that you can disable ping in /etc/sysctl.conf but is there a way to set the ping value for a specific interface only?
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Jul 28, 2009
I have a host and typing ifconfig I get:
eth0 Link encap:Ethernet HWaddr 00:0E:7F:4F:E4:09
inet addr:130.130.9.9 Bcast:130.130.255.255 Mask:255.255.0.0
inet6 addr: fe80::20e:7fff:fe4f:e409/64 Scope:Link
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and to do a test i want to disable or delete the ipv6 address, but mainteining the other configured parameters. Looking on the ifcfg config file I have
DEVICE=eth0
BOOTPROTO=static
BROADCAST=130.130.255.255
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and nothing about IPv6... Then, using ifdown-ipv6 could i remove only the ipv6 address?
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Apr 2, 2009
I have tried to disable the ipv6 support in ubuntu 9.04 32bit but the /etc/modprobe.d/aliases does not exist so I can't disable the suport as sugested for the previews versions. I need to disable it becouse it is pounding a total maihem in my vamware machines.
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Nov 27, 2010
I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
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then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
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Feb 14, 2010
I don't use wireless on my desktop so i would like it permanently disabled...each time i boot up it's back and receving up to 80mb of data from an unknown connection via wireless (i dont use wireless) so, to avoid any weird connections to my neighboors house or some kid hacking the neighborhood driving by with a wireless router in his truck i'd like to permanently turn off wireless. this is kind of funny because i had a hard time getting wireless to work on my laptop, but this is my desktop where i do not want it. i looked it up and your forum back in 2007 said to type in iwconfig in the shell then get the nickname of the wireless card then to black list the wireless card. i did this but it didn't work, so what do i do now? i have ubuntu 9.10
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May 27, 2010
I have searched for hours and have found nothing that works. Its just amazing that I have not destroyed my laptop yet. What I want to do is keep my child off the net under his user account. I have Karmic installed currently. I have tried adding an iptables rule: sudo iptables -A OUTPUT -p tcp -o eth0 -m owner --uid-owner test -j REJECT
That does not work. So then I tried to disable the network card for just one account... no go.I can only stop access totally for both users which doesn't work for me very well. No method gives me what I need. I want a way so I can login and use the computer normally AND an account he can login to and use but with no web.
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Oct 13, 2010
I have a strange problem with my networking under Ubuntu. When I first log in to Gnome both my network adapters are listed as "disconnected" in the network manager applet. If I right click on the notification icon and disable networking, then wait a few seconds and re enable it, it works fine.
It's happening consistently with Maverick although it seemed only temperamental with Lucid. I did a fresh Maverick install to see if it would help but it hasn't.
It's the onboard network sockets on a Gigabyte GA-X58A-UD7. I have two ports but I only use one, it doesn't seem to matter which I use. It's connected via gigabit ethernet to a Netgear router. It works fine in Windows 7 (dual boot).
It looks as though something's not quite "ready" when gnome first launches. The light on the router for the cable is off at first, and only comes on after a few seconds. It's DHCP. Same thing happened on the live USB stick (just before the isntaller) and disable/reenable made it work.
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