This is my first use of Ubuntu, but I have previous decent experience on Centos & Mandriva. I've just installed Natty 11.04 on a box that was running a mandriva 2010 - and the network is acting quite strange. When I define a static IP for eth0 through the gui, along with route & dns, it sort of works: ssh is fine, vnc too. However, I have an asterisk running on the box, and it is wild: some packets get lost in the box.
An ngrep shows the packets reaching the interface, but they dont show in asterisk !!! I've done a ufw disable, iptables is empty (why cant I service iptable restart btw ?). ip route list show decent routes (eth0 default); When I switch to DHCP, it is better, but unstable... If i plug a wifi usb stick, it seems to be better... Is there some known issues that could explain this behaviour ? The nic is a: Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller
I am facing a strange problem witht my iptables as there are some firewall entries stored somewhere which is displaying the below firewall entries even after flushing the iptables & when I restart the iptables service then the firewall entries are again shown in my iptables as shown below,
I have a strange problem with IpTables.after a server reboot, the complete rule-list of iptables is empty. After a manually start, all my old rules are there again.I checked chkconfig if autostart of iptables is enabled:chkconfig --list iptablesiptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
If I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
I am attempting to run apache on my linux router while connected to a VPN. My default route is set to the VPN endpoint and I cannot control port forwarding at that end. I cannot seem to connect to any service that i bind to the eth0 interface. I believe that my iptables rules and OpenVPN are the source of the problem.
/sbin/iptables -t nat -A POSTROUTING -o tun1 -j MASQUERADE /sbin/iptables -A FORWARD -i tun1 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT /sbin/iptables -A FORWARD -i eth1 -o tun1 -j ACCEPT
I'm running fc10 x64 - latest updates. First I could never get wake on lan to work - spent days working on that one. Now, when I restart after a hibernate my eth0 is not re-enabled or recognized anymore. About to give up on Fedora.
I've tried service network restart. I've tried unplugging cable and plugging back in. I've tried init.d/networkmanager restart. Only reboot works.
I've spent so much time trying to configure Fedore Core 10 for a Dynamips server and it's just not ready on some of the essential things like this hibernate problem and also wake on lan.
When I shutdown computer and start it up, eth0 doesn't seem to show up (though lspci sees ethernet card and modules are loaded). When i reboot (which is exactly the same, in my opinion), it works good. I'm using Sabayon GNU/Linux, Gnome Network Manager applet.
I have CentOS 5.2 just installed and massively updated with yum -update command. Than I tried to configure firewall. After changes via system_config_securitylevel_tui (open ssh, http, ftp, and 3306:TCP ports) iptables service can't start with message
> /sbin/service iptables start Flushing firewall rules: [OK] Setting chains to policy ACCEPT: mangle filter nat [OK] Unloading iptables modules: [OK] Applying iptables firewall rules: iptables-restore v1.3.5: Couldn't load match `TCP':/lib64/iptables/libipt_TCP.so: cannot open shared object file: No such file or directory Error occurred at line: 18 Try `iptables-restore -h' or 'iptables-restore --help' for more information. [FAILED]
I erased the iptables service and installed it again with yum. How can I make this service work?
I have a computer with two interfaces eth0(LAN) and eth1(WAN).I have followed some guides on the internet and came up with this iptables configuration:
# Generated by iptables-save v1.4.4 on Wed Apr 20 09:43:12 2011 *nat :OUTPUT ACCEPT [0:0]
I have a suspend problem in my laptop. Sometimes, when resuming from suspend, the network adapter is down (that is, the network does not work and the light of the network adapter is off). Restarting the network service doesn't work, because I think that the system forgot about the hardware, and probably the driver should be reloaded.Does anyone knows how to do that?(ps. /etc/init.d/networking restart does not work, because the hardware driver is not being recognized anymore).
If I restart the network service, not all interfaces come back up. Is this expected behaviour or does something need a kick?
Code: [root@@aspire3500 ~]$ service network restart Shutting down interface eth0: [ OK ] Shutting down interface wlan0: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] [root@@aspire3500 ~]$
But, when I restart the network service this IPv6 address is gone. How could I make it as a permanent IPv6 address( that should be edited or deleted when I want but not when I only restart the network)to my interface?
whats the difference between restarting/stopping apache using 'service httpd restart/stop' and apachectl restart/stop. I know that using 'service httpd restart' is actually a script in /etc/init.d/httpd but what about apachectl?
I would like to allow incoming and outgoing connections when I'm connected to a wired connection, but drop it otherwise. I noticed that ufw can't block outgoing traffic because of will I give iptables a try. I'm unsure if dropping packages that are outgoing will work, the rule after the block rule will allow all outgoing connections.
This what the rules are intended to do, unsure if that is actually the case. Allow all loopback traffic. Allow ping replys Allow incoming on port 12345 if eth0, deny otherwise. Allow outgoing on port 12346 if eth0, deny otherwise.
Code: iptables -A FORWARD -j DROP iptables -A INPUT -i lo -j ACCEPT iptables -A INPUT -p icmp --icmp-type 0 -s -m state --state ESTABLISHED,RELATED -j ACCEPT
I have linux server which 6.2 very old which was installed long back. CVS is running there . problem is sometime the port doesnot listen sometimes listen if i do netstat -an.It is weired. not sure how to restart the CVS service in the 6.2 server
I'm looking to use Linux (Ubuntu 9.10) as a network bridge between two subnets. I can configure iptables to permit all traffic on eth0 (subnet 1) to pass to eth1 (subnet 2) but before transmitting that traffic I want to perform further analysis. Is it possible within iptables or via a third-party product such a pyroman, to write a "hook" that then directs that traffic to another application installed on the same host?
I have an HP Deskjet D1460. I am using Ubuntu 10.04 and HPLIP 3.10.2 that came with the distro. I am in a plan of moving my windows PC to ubuntu in my bussiness, and this is the first of them. Trying to solve all the problems before converting a second one. All seems to work quite well and almost out of the box... and that is a huge step from the last distro i tryied 2 years ago. So, my difficulty now resides on the printing. I am using a small VFox program that manage some of the aspects of the bussiness, in wine. It works without problems, but... when I print, all the pages get printed like 1cm below than when it was printed under windows. The problem is, that I use the printer to fill some forms that came pre-printed, and now, I am printing over the other text instead of the white spaces. I read a little, and try to adjust the HWMargins and the ImageableArea in the ppd of /etc/cups/ppd/ but it was like if I was doing nothing. Do I miss a step? Do I need to restart a service or something after changing the ppd? The margings when using the printer gui from Ubuntu are all in 0, and for that i need like a minus something.
I have a box Suse 11.1 with a service that (I dont know why) every day stop at the same time. Im finding why it come to a halt but in the meantime I would like restart it automatically.As root I insert in crontab the line:25 16 * * * /etc/init.d/service startBut it don works If I launch manually /etc/init.d/service start (or stop) it works
I have task to do configure a two httpd service in a same linux machine using iptables.
For example: Run primary httpd instance on 80 and 443 port if primary instance is down switch to second instance running on 8080 and 4443 this can be achieved using iptables.
I neded to make some changes to the httpd.conf file. Afterwards I tried restarting,but it won't restart.It's saying port 80 is already in use. after checking via lsof -i :80 I get this result:
5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.
I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.
Code: echo !HH | nc 192.168.1.6 80
I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?
I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.
My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...
The G5 eth0 - Public IP - full LAMP services on two or three virtual interfaces eth1 - Private IP 192.168.0.1 The G4 eth0 - Public IP for ssh eth1 - Private IP 192.168.0.2
Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...
I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).
I go and restart ssh and I get this weird message. thought I should be getting ok or fail message, at least thats how I remember it. What do you think?nate@universal-mechanism:~$ sudo service ssh restart
I've after latest jessie update a problem with service samba restart. If I use "service samba restart", there is a timeout (after long time) and error.
Output of "systemctl status samba.service":
Code: Select all● samba.service - LSB: ensure Samba daemons are started (nmbd and smbd) Loaded: loaded (/etc/init.d/samba) Active: failed (Result: timeout) since Mo 2014-10-20 02:16:57 CEST; 7s ago Process: 6205 ExecStart=/etc/init.d/samba start (code=killed, signal=TERM)
Okt 20 02:16:57 server systemd[1]: samba.service start operation timed out. Terminating. Okt 20 02:16:57 server systemd[1]: Failed to start LSB: ensure Samba daemons are started (nmbd and smbd).
[Code] ....
Whats going wrong. "service samba restart" should bring no error message if the service is not running previously.
