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  • No client internet access when setting up these iptables rules

    - by Siriss
    I have read many other posts but cannot figure this out. eth0 is my external connected to a Comcast modem. The server has internet access with no issues. eth1 is internal and running DHCP for the clients. I have DHCP working just fine, all my clients can get an IP and ping the server but they cannot access the internet. I am using ISC-DHCP-SERVER and have set /etc/default/isc-dhcp-server to INTERFACE="eht1" Here is my dhcpd.conf file located in /etc/dhcp/dhcpd.conf ddns-update-style interim; ignore client-updates; subnet 10.0.10.0 netmask 255.255.255.0 { range 10.0.10.10 10.0.10.200; option routers 10.0.10.2; option subnet-mask 255.255.255.0; option domain-name-servers 208.67.222.222, 208.67.220.220; #OpenDNS # option domain-name "example.com"; default-lease-time 21600; max-lease-time 43200; authoritative; } I have made the *net.ipv4.ip_forward=1* change in /etc/sysctl.conf here is my interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp iface eth1 inet static address 10.0.10.2 netmask 255.255.255.0 network 10.0.10.0 auto eth1 And finally- here is my iptables.conf file: # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *nat :PREROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -s 10.0.10.0/24 -o eth0 -j MASQUERADE #-A PREROUTING -i eth0 -p tcp --dport 59668 -j DNAT --to-destination 10.0.10.2:59668 COMMIT *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -i eth1 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 53 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 53 -j ACCEPT -A FORWARD -s 10.0.10.0/24 -o eth0 -j ACCEPT -A FORWARD -d 10.0.10.0/24 -m state --state ESTABLISHED,RELATED -i eth0 -j ACCEPT -A FORWARD -p icmp -j ACCEPT -A FORWARD -i lo -j ACCEPT -A FORWARD -i eth1 -j ACCEPT #-A FORWARD -i eth0 -m state --state NEW -m tcp -p tcp -d 10.0.10.2 --dport 59668 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT I am completely stuck. I cannot figure out why the clients cannot access the internet. Am I missing a service? Is a service not running? Any help would be greatly appreciated. I tried to be as thorough as possible but please let me know if I have missed something. Thank you!

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  • Two Wifi Icons in Panel

    - by Alex
    I have the exact problem in 13.10 as this user Two Wifi indicators in panel. Here are some screenshots: Here are some screenshots from another user: http://ubuntuforums.org/showthread.php?t=2183020&p=12825563 ifconfig and iwconfig outputs $ ifconfig lo Link encap:Local Loopback inet addr:XXXXXX Mask:XXXXXXX inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:2243 errors:0 dropped:0 overruns:0 frame:0 TX packets:2243 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:209889 (209.8 KB) TX bytes:209889 (209.8 KB) wlan0 Link encap:Ethernet HWaddr XXXXXXXXX inet addr:XXXXXX Bcast:XXXXXXXX Mask:XXXXXXX inet6 addr: XXXXXXX Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5925 errors:0 dropped:0 overruns:0 frame:0 TX packets:3361 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2951818 (2.9 MB) TX bytes:630579 (630.5 KB) $ iwconfig lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"XXXXX" Mode:Managed Frequency:2.437 GHz Access Point: XXXXXXXX Bit Rate=72.2 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:153 Invalid misc:472 Missed beacon:0

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  • Why dhclient is still running when I choose static IP?

    - by user276851
    I modify dhcp to static in /etc/network/interfaces (like below). # The primary network interface auto eth0 iface eth0 inet static netmask 255.255.0.0 address 10.10.130.128 gateway 10.10.1.1 Then restart the interface. $ sudo ifdown eth0; sudo ifup eth0 ... $ ifconfig eth0 Link encap:Ethernet inet addr:10.10.130.128 Bcast:10.10.255.255 Mask:255.255.0.0 So the new address kicks in. But DHCP is still there? $ ps aux | grep dhc root ... dhclient3 -e IF_METRIC=100 -pf /var/run/dhclient.eth0.pid -lf /var/lib/dhcp/dhclient.eth0.leases -1 eth0 Is that normal? If not, how to restart interface in static IP while stop DHCP at the same time? Thanks a lot.

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  • Issue with setting up multiple IP addresses on ubuntu server installation

    - by varunyellina
    I want to setup two ip addresses on my system for access through lan. This is my config on my other system. Desktop Installation My desktop installation runs with multiple IP's added through networkmanager both through lan and wifi. Server Installation On my server install I've edited /etc/network/interfaces to the following. auto eth0 auto eth0:1 # IP-1 iface eth0 inet static address 172.16.35.35 network 172.16.34.1 netmask 255.255.254.0 broadcast 172.166.35.255 dns-nameservers 172.16.100.221 8.8.8.8 # IP-2 iface eth0:1 inet static address 172.16.34.34 network 172.16.34.1 netmask 255.255.254.0 gateway 172.16.34.1 broadcast 172.16.35.255 After restarting through "/etc/init.d/networking restart" I recieve "Failed to bring up eth0:1" What am I doing wrong? Thankyou.

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  • Ethernet not working on a Dell Inspiron 14z

    - by Izabela
    When I plug in a network cable, it is not recognized. The WI-FI is working properly, though. ifconfig output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1645 errors:0 dropped:0 overruns:0 frame:0 TX packets:1645 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:206840 (206.8 KB) TX bytes:206840 (206.8 KB) wlan0 Link encap:Ethernet HWaddr e0:06:e6:de:57:e7 inet addr:150.164.201.145 Bcast:150.164.201.255 Mask:255.255.255.0 inet6 addr: 2001:12f0:601:a921:98a2:3dd:3be8:c483/64 Scope:Global inet6 addr: 2001:12f0:601:a921:e206:e6ff:fede:57e7/64 Scope:Global inet6 addr: fe80::e206:e6ff:fede:57e7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:23892 errors:0 dropped:0 overruns:0 frame:0 TX packets:14676 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:30123226 (30.1 MB) TX bytes:2189050 (2.1 MB)

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  • sony vaio WLAN problem using 12.04

    - by Fredrik
    I'm unable to get my WLAN to work for my Sony Vaio model VPCF23C5E No problem connecting from windows, smartphones etc. $ sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; dmesg | grep -i firm *-network description: Wireless interface product: AR9485 Wireless Network Adapter vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 01 serial: 64:27:37:92:99:0f width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.2.0-29-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:16 memory:f7000000-f707ffff memory:f7080000-f708ffff *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:05:00.0 logical name: eth0 version: 06 serial: f0:bf:97:dd:b2:bd size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-1.fw ip=192.168.1.4 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:50 ioport:9000(size=256) memory:e2104000-e2104fff memory:e2100000-e2103fff LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise Linux siriedit 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no [ 1.287449] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored [ 18.273582] [Firmware Bug]: ACPI(NGFX) defines _DOD but not _DOS Seen some proposed solution e.g. Wireless network cannot be enabled for Sony VAIO E series but answers there don't solve my problem... I'm out of ideas :-( What else can I check? update $ ifconfig -a eth0 Link encap:Ethernet HWaddr f0:bf:97:dd:b2:bd inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::f2bf:97ff:fedd:b2bd/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5072 errors:0 dropped:0 overruns:0 frame:0 TX packets:4444 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4568435 (4.5 MB) TX bytes:610624 (610.6 KB) Interrupt:50 Base address:0xc000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1498 errors:0 dropped:0 overruns:0 frame:0 TX packets:1498 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:114156 (114.1 KB) TX bytes:114156 (114.1 KB) wlan0 Link encap:Ethernet HWaddr 64:27:37:92:99:0f inet addr:192.168.1.5 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6627:37ff:fe92:990f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1277 errors:0 dropped:0 overruns:0 frame:0 TX packets:472 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:483155 (483.1 KB) TX bytes:61031 (61.0 KB)

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  • Ethernet not working in 12.04 (Dell Inspiron 14z)

    - by Izabela
    When I plug in a network cable, it is not recognized. The WI-FI is working properly, though. ifconfig output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1645 errors:0 dropped:0 overruns:0 frame:0 TX packets:1645 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:206840 (206.8 KB) TX bytes:206840 (206.8 KB) wlan0 Link encap:Ethernet HWaddr e0:06:e6:de:57:e7 inet addr:150.164.201.145 Bcast:150.164.201.255 Mask:255.255.255.0 inet6 addr: 2001:12f0:601:a921:98a2:3dd:3be8:c483/64 Scope:Global inet6 addr: 2001:12f0:601:a921:e206:e6ff:fede:57e7/64 Scope:Global inet6 addr: fe80::e206:e6ff:fede:57e7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:23892 errors:0 dropped:0 overruns:0 frame:0 TX packets:14676 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:30123226 (30.1 MB) TX bytes:2189050 (2.1 MB)

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  • When Ubuntu Server restarts eth0 Doesn't come back up

    - by JoelGsus
    Every time I restart my Ubuntu Server 11.10 I can't ssh into it because ETH0 doesn't come up automatically. I never had this problem before upgrading to 11.10. I have to login to the server and start the ETH0 manually. I would appreciate it any help. Thanks. Here is my /etc/networks/interfaces file: #The loopback network interface auto lo eth0 iface lo inet loopback # The primary network interface iface eth0 inet static address 192.168.1.102 netmask 255.255.255.0 broadcast 192.168.1.255 network 192.168.1.0 gateway 192.168.1.1

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  • Wireless connection by using command screen

    - by Amadeus
    I installed Ubuntu 12.04 armhf to my beagleboard-xm and now trying to connect to a wireless network. First, I checked if I can search for available networks: ubuntu@arm:~$ iwlist scan lo Interface doesn't support scanning. usb0 Interface doesn't support scanning. wlan0 Scan completed : Cell 01 - Address: EA:7D:EF:60:C9:0B Channel:1 Frequency:2.412 GHz (Channel 1) Quality=70/70 Signal level=-23 dBm Encryption key:on ESSID:"ghostrider" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 24 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s Mode:Ad-Hoc Extra:tsf=000000005a1ab50e Extra: Last beacon: 6242ms ago IE: Unknown: 000A67686F73747269646572 IE: Unknown: 010882848B962430486C IE: Unknown: 030101 IE: Unknown: 06020000 IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: Unknown: 32040C121860 IE: Unknown: 2D1A2C181BFF00000000000000000000000000000000000000000000 IE: Unknown: 3D16010800000000FF000000000000000000000000000000 IE: Unknown: DD09001018020000000000 Then I edited /etc/network/interfaces file to the following: root@arm:/etc/wpa_supplicant# cat /etc/network/interfaces auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet dhcp # Example to keep MAC address between reboots #hwaddress ether DE:AD:BE:EF:CA:FE # WiFi Example auto wlan0 iface wlan0 inet dhcp wpa-ssid "ghostrider" wpa-psk "b34d373eb2fb836a43b0afffe783c7d0af694724506c9e77b06d1021302905bf" But I cannot still connect to the wireless network: root@arm:/etc/wpa_supplicant# iwconfig lo no wireless extensions. usb0 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Asociated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on eth0 no wireless extensions. root@arm:/etc/network# ifup wlan0 Failed to bring up wlan0. What is wrong? Should I change any other files also? But I think it was enough. By the way if you are curious about where that wpa-psk came from: zero@ghostrider:~$ wpa_passphrase ghostrider 34bddf67c2 network={ ssid="ghostrider" #psk="34bddf67c2" psk=b34d373eb2fb836a43b0afffe783c7d0af694724506c9e77b06d1021302905bf } I will appreciate any effort to help. Regards, Amadeus ps: Also I tried to connect manually: root@arm:/etc/network# iwconfig wlan0 essid ghostrider key s:34bddf67c2 But this did not solve my problem also.

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  • Can't access some websites using Ubuntu 13.10

    - by Adame Doe
    Something's wrong with Ubuntu. Since I've upgraded to 13.10, I can't access some websites for no apparent reason. I've tried everything imaginable to solve this problem : Made sure that MTUs are the same, Disabled IPv6 in both the network manager and used browsers, Deactivated my network keys, DMZed my computer, Used other DNS like Google and OpenDNS, Checked that no firewall was running my computer ... And it's the same result. I even tried to reinstall Ubuntu a couple of times, but no luck. The most annoying thing about it is I can't access wordpress.org! So, there's no way it could be an ISP restriction of some kind. When I use a VPN, I can access pretty much anything. I'm really frustrated because I have to use wordpress.org very often. Any clue? ifconfig adame@adame-ws:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:26:18:3d:b0:7c inet addr:10.42.0.1 Bcast:10.42.0.255 Mask:255.255.255.0 inet6 addr: fe80::226:18ff:fe3d:b07c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8024 errors:0 dropped:0 overruns:0 frame:0 TX packets:7966 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:684480 (684.4 KB) TX bytes:616608 (616.6 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:8222 errors:0 dropped:0 overruns:0 frame:0 TX packets:8222 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:568269 (568.2 KB) TX bytes:568269 (568.2 KB) wlan0 Link encap:Ethernet HWaddr 00:19:70:40:85:eb inet addr:192.168.2.3 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::219:70ff:fe40:85eb/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1464 Metric:1 RX packets:123705 errors:0 dropped:0 overruns:0 frame:0 TX packets:98141 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:94963545 (94.9 MB) TX bytes:10387470 (10.3 MB) /etc/hosts 127.0.0.1 localhost 127.0.1.1 adame-ws ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters tracepath wordpress.org 1: adame-ws.local 0.092ms pmtu 1500 1: 192.168.2.1 1.300ms asymm 2 1: 192.168.2.1 1.060ms asymm 2 2: no reply 3: no reply 4: no reply 5: no reply 6: no reply 7: no reply 8: no reply ... keep on going like that ping wordpress.org adame@adame-ws:~$ ping wordpress.org PING wordpress.org (66.155.40.250) 56(84) bytes of data. --- wordpress.org ping statistics --- 10 packets transmitted, 0 received, 100% packet loss, time 9071ms

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  • LXC Container Networking

    - by digitaladdictions
    I just started to experiment with LXC containers. I was able to create a container and start it up but I cannot get dhcp to assign the container an IP address. If I assign a static address the container can ping the host IP but not outside the host IP. The host is CentOS 6.5 and the guest is Ubuntu 14.04LTS. I used the template downloaded by lxc-create -t download -n cn-01 command. If I am trying to get an IP address on the same subnet as the host I don't believe I should need the IP tables rule for masquerading but I added it anyways. Same with IP forwarding. I compiled LXC by hand from the following source https://linuxcontainers.org/downloads/lxc-1.0.4.tar.gz Host Operating System Version #> cat /etc/redhat-release CentOS release 6.5 (Final) #> uname -a Linux localhost.localdomain 2.6.32-431.20.3.el6.x86_64 #1 SMP Thu Jun 19 21:14:45 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Container Config #> cat /usr/local/var/lib/lxc/cn-01/config # Template used to create this container: /usr/local/share/lxc/templates/lxc-download # Parameters passed to the template: # For additional config options, please look at lxc.container.conf(5) # Distribution configuration lxc.include = /usr/local/share/lxc/config/ubuntu.common.conf lxc.arch = x86_64 # Container specific configuration lxc.rootfs = /usr/local/var/lib/lxc/cn-01/rootfs lxc.utsname = cn-01 # Network configuration lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 LXC default.confu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:30:f2 brd ff:ff:ff:ff:f #> cat /usr/local/etc/lxc/default.conf lxc.network.type = veth lxc.network.link = br0 lxc.network.flags = up #> lxc-checkconfig Kernel configuration not found at /proc/config.gz; searching... Kernel configuration found at /boot/config-2.6.32-431.20.3.el6.x86_64 --- Namespaces --- Namespaces: enabled Utsname namespace: enabled Ipc namespace: enabled Pid namespace: enabled User namespace: enabled Network namespace: enabled Multiple /dev/pts instances: enabled --- Control groups --- Cgroup: enabled Cgroup namespace: enabled Cgroup device: enabled Cgroup sched: enabled Cgroup cpu account: enabled Cgroup memory controller: /usr/local/bin/lxc-checkconfig: line 103: [: too many arguments enabled Cgroup cpuset: enabled --- Misc --- Veth pair device: enabled Macvlan: enabled Vlan: enabled File capabilities: /usr/local/bin/lxc-checkconfig: line 118: [: -gt: unary operator expected Note : Before booting a new kernel, you can check its configuration usage : CONFIG=/path/to/config /usr/local/bin/lxc-checkconfig Network Config (HOST) #> cat /etc/sysconfig/network-scripts/ifcfg-br0 DEVICE=br0 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes #> cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 ONBOOT=yes TYPE=Ethernet IPV6INIT=no USERCTL=no BRIDGE=br0 #> cat /etc/networks default 0.0.0.0 loopback 127.0.0.0 link-local 169.254.0.0 #> ip a s 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:12:30:f2 brd ff:ff:ff:ff:ff:ff inet6 fe80::20c:29ff:fe12:30f2/64 scope link valid_lft forever preferred_lft forever 3: pan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN link/ether 42:7e:43:b3:61:c5 brd ff:ff:ff:ff:ff:ff 4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether 00:0c:29:12:30:f2 brd ff:ff:ff:ff:ff:ff inet 10.60.70.121/24 brd 10.60.70.255 scope global br0 inet6 fe80::20c:29ff:fe12:30f2/64 scope link valid_lft forever preferred_lft forever 12: vethT6BGL2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether fe:a1:69:af:50:17 brd ff:ff:ff:ff:ff:ff inet6 fe80::fca1:69ff:feaf:5017/64 scope link valid_lft forever preferred_lft forever #> brctl show bridge name bridge id STP enabled interfaces br0 8000.000c291230f2 no eth0 vethT6BGL2 pan0 8000.000000000000 no #> cat /proc/sys/net/ipv4/ip_forward 1 # Generated by iptables-save v1.4.7 on Fri Jul 11 15:11:36 2014 *nat :PREROUTING ACCEPT [34:6287] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A POSTROUTING -o eth0 -j MASQUERADE COMMIT # Completed on Fri Jul 11 15:11:36 2014 Network Config (Container) #> cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp #> ip a s 11: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 02:69:fb:42:ee:d7 brd ff:ff:ff:ff:ff:ff inet6 fe80::69:fbff:fe42:eed7/64 scope link valid_lft forever preferred_lft forever 13: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever

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  • Forwarding data between two interfaces

    - by user84471
    I installed Ubuntu server 12.04 after that I installed dhcp3-server and configured it like this: At isc-dhcp-server INTERFACES="eth0" And in dhcpd.conf # A slightly different configuration for an internal subnet. subnet 192.168.1.0 netmask 255.255.255.0 { range 192.168.1.5 192.168.1.100; option domain-name-servers 192.168.1.1; option domain-name "nazwa.local"; option routers 192.168.1.1; option broadcast-address 192.168.1.255; default-lease-time 600; max-lease-time 7200; } Also I have two eth interfaces: # second netowrk interface auto eth0 iface eth0 inet static address 192.168.1.1 netmask 255.255.255.0 # The primary network interface auto eth1 iface eth1 inet dhcp When I plug computer to eth0 I get propertly ip adress but I can't visit any sites. I do even this: echo 1 > /proc/sys/net/ipv4/ip_forward

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  • Configuring ethernet network

    - by den-javamaniac
    Hi. I've got a wired network connection and if I'm using network manager (hereafter "NM") everything works fine except for the hardware address (it doesn't change). I'm thinking of using /etc/network/interfaces. So, I added some code and it looks like this: auto lo iface lo inet loopback auto eth1 iface eth1 inet static address #corresponding value netmask #corresponding value gateway #corresponding value hwaddress #corresponding value After restarting networking I get the following message: *Reconfiguring network interfaces... #here some help code appears Failed to bring up eth1. The default interface that works with NM is eth0. Please advise on how to handle the problem.

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  • Networking stopped working on Ubuntu

    - by 1337Rooster
    I installed Ubuntu 10.04 through the Wubi installer (Funny, I installed it today and thought I would have gotten 10.10). I had a network connection and everything was working fine. I rebooted my coumputer a couple of times and then suddenly, I could not connect to the network and when I click the wireless/networking icon it says "Networking Disabled". I reinstalled Ubuntu and the problem went away. After a few reboots the problem returned. I have tried restarting to see if it would come back as well as a few other things listed below. Any other suggestions would be appreciated. Tried to restart networking via /etc/init.d/networking: amato@ubuntu:~$ sudo /etc/init.d/networking restart * Reconfiguring network interfaces... Ignoring unknown interface eth0=eth0. [ OK ] Tried to stop and start it: amato@ubuntu:~$ sudo /etc/init.d/networking stop * Deconfiguring network interfaces... [ OK ] amato@ubuntu:~$ amato@ubuntu:~$ sudo /etc/init.d/networking start Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service networking start Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the start(8) utility, e.g. start networking networking stop/waiting Tried start networking: amato@ubuntu:~$ start networking start: Rejected send message, 1 matched rules; type="method_call", sender=":1.58" (uid=1000 pid=2241 comm="start) interface="com.ubuntu.Upstart0_6.Job" member="Start" error name="(unset)" requested_reply=0 destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init")) amato@ubuntu:~$ sudo start networking networking stop/waiting Tried service networking restart: amato@ubuntu:~$ service networking restart restart: Rejected send message, 1 matched rules; type="method_call", sender=":1.60" (uid=1000 pid=2248 comm="restart) interface="com.ubuntu.Upstart0_6.Job" member="Restart" error name="(unset)" requested_reply=0 destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init")) amato@ubuntu:~$ sudo service networking restart restart: Unknown instance: Here are the contents of my /etc/network/interfaces. auto lo iface lo inet loopback I even tried to modify it to this (based on something I read, online, not sure if I was doing the right thing here). Tried everything again and no luck: auto lo eth0 iface lo inet loopback iface eth0 inet dhcp

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  • saslauthd + PostFix producing password verification and authentication errors

    - by Aram Papazian
    So I'm trying to setup PostFix while using SASL (Cyrus variety preferred, I was using dovecot earlier but I'm switching from dovecot to courier so I want to use cyrus instead of dovecot) but I seem to be having issues. Here are the errors I'm receiving: ==> mail.log <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure ==> mail.info <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure ==> mail.warn <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure I tried $testsaslauthd -u xxxx -p xxxx 0: OK "Success." So I know that the password/user I'm using is correct. I'm thinking that most likely I have a setting wrong somewhere, but can't seem to find where. Here is my files. Here is my main.cf for postfix: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname # This is already done in /etc/mailname #myhostname = crazyinsanoman.xxxxx.com smtpd_banner = $myhostname ESMTP $mail_name #biff = no # appending .domain is the MUA's job. #append_dot_mydomain = no readme_directory = /usr/share/doc/postfix # TLS parameters smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # Relay smtp through another server or leave blank to do it yourself #relayhost = smtp.yourisp.com # Network details; Accept connections from anywhere, and only trust this machine mynetworks = 127.0.0.0/8 inet_interfaces = all #mynetworks_style = host #As we will be using virtual domains, these need to be empty local_recipient_maps = mydestination = # how long if undelivered before sending "delayed mail" warning update to sender delay_warning_time = 4h # will it be a permanent error or temporary unknown_local_recipient_reject_code = 450 # how long to keep message on queue before return as failed. # some have 3 days, I have 16 days as I am backup server for some people # whom go on holiday with their server switched off. maximal_queue_lifetime = 7d # max and min time in seconds between retries if connection failed minimal_backoff_time = 1000s maximal_backoff_time = 8000s # how long to wait when servers connect before receiving rest of data smtp_helo_timeout = 60s # how many address can be used in one message. # effective stopper to mass spammers, accidental copy in whole address list # but may restrict intentional mail shots. smtpd_recipient_limit = 16 # how many error before back off. smtpd_soft_error_limit = 3 # how many max errors before blocking it. smtpd_hard_error_limit = 12 # Requirements for the HELO statement smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit # Requirements for the sender details smtpd_sender_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit # Requirements for the connecting server smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.njabl.org # Requirement for the recipient address smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, permit smtpd_data_restrictions = reject_unauth_pipelining # require proper helo at connections smtpd_helo_required = yes # waste spammers time before rejecting them smtpd_delay_reject = yes disable_vrfy_command = yes # not sure of the difference of the next two # but they are needed for local aliasing alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/vmail # this is for the mailbox location for each user virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf # and this is for aliases virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf # and this is for domain lookups virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf # this is how to connect to the domains (all virtual, but the option is there) # not used yet # transport_maps = mysql:/etc/postfix/mysql_transport.cf # Setup the uid/gid of the owner of the mail files - static:5000 allows virtual ones virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 inet_protocols=all # Cyrus SASL Support smtpd_sasl_path = smtpd smtpd_sasl_local_domain = xxxxx.com ####################### ## OLD CONFIGURATION ## ####################### #myorigin = /etc/mailname #mydestination = crazyinsanoman.xxxxx.com, localhost, localhost.localdomain #mailbox_size_limit = 0 #recipient_delimiter = + #html_directory = /usr/share/doc/postfix/html message_size_limit = 30720000 #virtual_alias_domains = ##virtual_alias_maps = hash:/etc/postfix/virtual #virtual_mailbox_base = /home/vmail ##luser_relay = webmaster #smtpd_sasl_type = dovecot #smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes #smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination #virtual_create_maildirsize = yes #virtual_maildir_extended = yes #proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps #virtual_transport = dovecot #dovecot_destination_recipient_limit = 1 Here is my master.cf: # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # # Do not forget to execute "postfix reload" after editing this file. # # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - - - - smtpd submission inet n - - - - smtpd -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - - 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - - - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # Many of the following services use the Postfix pipe(8) delivery # agent. See the pipe(8) man page for information about ${recipient} # and other message envelope options. # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # ==================================================================== # # Recent Cyrus versions can use the existing "lmtp" master.cf entry. # # Specify in cyrus.conf: # lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4 # # Specify in main.cf one or more of the following: # mailbox_transport = lmtp:inet:localhost # virtual_transport = lmtp:inet:localhost # # ==================================================================== # # Cyrus 2.1.5 (Amos Gouaux) # Also specify in main.cf: cyrus_destination_recipient_limit=1 # cyrus unix - n n - - pipe user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} # # ==================================================================== # Old example of delivery via Cyrus. # #old-cyrus unix - n n - - pipe # flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} #dovecot unix - n n - - pipe # flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient} Here is what I'm using for /etc/postfix/sasl/smtpd.conf log_level: 7 pwcheck_method: saslauthd pwcheck_method: auxprop mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5 allow_plaintext: true auxprop_plugin: mysql sql_hostnames: 127.0.0.1 sql_user: xxxxx sql_passwd: xxxxx sql_database: maildb sql_select: select crypt from users where id = '%u' As you can see I'm trying to use mysql as my authentication method. The password in 'users' is set through the 'ENCRYPT()' function. I also followed the methods found in http://www.jimmy.co.at/weblog/?p=52 in order to redo /var/spool/postfix/var/run/saslauthd as that seems to be a lot of people's problems, but that didn't help at all. Also, here is my /etc/default/saslauthd START=yes DESC="SASL Authentication Daemon" NAME="saslauthd" # Which authentication mechanisms should saslauthd use? (default: pam) # # Available options in this Debian package: # getpwent -- use the getpwent() library function # kerberos5 -- use Kerberos 5 # pam -- use PAM # rimap -- use a remote IMAP server # shadow -- use the local shadow password file # sasldb -- use the local sasldb database file # ldap -- use LDAP (configuration is in /etc/saslauthd.conf) # # Only one option may be used at a time. See the saslauthd man page # for more information. # # Example: MECHANISMS="pam" MECHANISMS="pam" MECH_OPTIONS="" THREADS=5 OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd -r" I had heard that potentially changing MECHANISM to MECHANISMS="mysql" but obviously that didn't help as is shown by the options listed above and also by trying it out anyway in case the documentation was outdated. So, I'm now at a loss... I have no idea where to go from here or what steps I need to do to get this working =/ Anyone have any ideas? EDIT: Here is the error that is coming from auth.log ... I don't know if this will help at all, but here you go: Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql auxprop plugin using mysql engine Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: begin transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from userPassword user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from cmusaslsecretPLAIN user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: commit transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: begin transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from userPassword user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from cmusaslsecretPLAIN user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: commit transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1'

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  • When I restart my virtual enviorment it does not re-bind to the IP address

    - by RoboTamer
    The IP does no longer respond to a remote ping With restart I mean: lxc-stop -n vm3 lxc-start -n vm3 -f /etc/lxc/vm3.conf -d -- /etc/network/interfaces auto lo iface lo inet loopback up route add -net 127.0.0.0 netmask 255.0.0.0 dev lo down route add -net 127.0.0.0 netmask 255.0.0.0 dev lo # device: eth0 auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address 192.22.189.58 netmask 255.255.255.248 gateway 192.22.189.57 broadcast 192.22.189.63 bridge_ports eth0 bridge_fd 0 bridge_hello 2 bridge_maxage 12 bridge_stp off post-up ip route add 192.22.189.59 dev br0 post-up ip route add 192.22.189.60 dev br0 post-up ip route add 192.22.189.61 dev br0 post-up ip route add 192.22.189.62 dev br0 -- /etc/lxc/vm3.conf lxc.utsname = vm3 lxc.rootfs = /var/lib/lxc/vm3/rootfs lxc.tty = 4 #lxc.pts = 1024 # pseudo tty instance for strict isolation lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 lxc.network.name = eth0 lxc.network.mtu = 1500 #lxc.cgroup.cpuset.cpus = 0 # security parameter lxc.cgroup.devices.deny = a # Deny all access to devices lxc.cgroup.devices.allow = c 1:3 rwm # dev/null lxc.cgroup.devices.allow = c 1:5 rwm # dev/zero lxc.cgroup.devices.allow = c 5:1 rwm # dev/console lxc.cgroup.devices.allow = c 5:0 rwm # dev/tty lxc.cgroup.devices.allow = c 4:0 rwm # dev/tty0 lxc.cgroup.devices.allow = c 4:1 rwm # dev/tty1 lxc.cgroup.devices.allow = c 4:2 rwm # dev/tty2 lxc.cgroup.devices.allow = c 1:9 rwm # dev/urandon lxc.cgroup.devices.allow = c 1:8 rwm # dev/random lxc.cgroup.devices.allow = c 136:* rwm # dev/pts/* lxc.cgroup.devices.allow = c 5:2 rwm # dev/pts/ptmx lxc.cgroup.devices.allow = c 254:0 rwm # rtc # mounts point lxc.mount.entry=proc /var/lib/lxc/vm3/rootfs/proc proc nodev,noexec,nosuid 0 0 lxc.mount.entry=devpts /var/lib/lxc/vm3/rootfs/dev/pts devpts defaults 0 0 lxc.mount.entry=sysfs /var/lib/lxc/vm3/rootfs/sys sysfs defaults 0 0

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  • KVM work with bridge network problems

    - by isware
    I try to configure bridge network for KVM(refer to http://www.linux-kvm.org/page/Networking), and it worked for Guest OS, but I have two problems with my Fedora host OS: 1?I can not access internet on host 2?The bridge configuration lost after reboot, I need to execute "service network restart" again to bring it up I checked here(http://serverfault.com/questions/168119/kvm-network-bridge-with-public-static-ip-for-both-host-and-guests) for the first problem, it seems not working for me. Any advice is appreciated! ifconfig -a eth0 Link encap:Ethernet HWaddr 48:5B:39:ED:EB:5A inet6 addr: fe80::4a5b:39ff:feed:eb5a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:231340 errors:0 dropped:0 overruns:0 frame:0 TX packets:413424 errors:0 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:15335606 (14.6 MiB) TX bytes:114755796 (109.4 MiB) Interrupt:44 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:119307 errors:0 dropped:0 overruns:0 frame:0 TX packets:119307 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:57151264 (54.5 MiB) TX bytes:57151264 (54.5 MiB) sit0 Link encap:IPv6-in-IPv4 NOARP MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) sw0 Link encap:Ethernet HWaddr 48:5B:39:ED:EB:5A inet addr:192.168.1.133 Bcast:255.255.255.255 Mask:255.255.255.0 inet6 addr: fe80::4a5b:39ff:feed:eb5a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:229584 errors:0 dropped:0 overruns:0 frame:0 TX packets:401232 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11047463 (10.5 MiB) TX bytes:113891533 (108.6 MiB) tap0 Link encap:Ethernet HWaddr F2:86:1A:48:E2:55 inet6 addr: fe80::f086:1aff:fe48:e255/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:232 errors:0 dropped:0 overruns:0 frame:0 TX packets:2744 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:24842 (24.2 KiB) TX bytes:243899 (238.1 KiB) virbr0 Link encap:Ethernet HWaddr 9A:7C:09:6B:85:65 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:46 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:5513 (5.3 KiB)

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  • Failed to bring up eth1 in a dual ips solution in ubuntu

    - by lxyu
    I'm using ubuntu 12.04. I tried to assign two ips to two ethernet cards in my server. The content of /etc/network/interfaces is like this: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 114.80.156.a netmask 255.255.255.224 gateway 114.80.156.b auto eth1 iface eth1 inet static address 114.80.156.c netmask 255.255.255.240 gateway 114.80.156.d a b c d have different values, which means the two ips are in different vlans. But I can only bring up eth0 with this command: $ /etc/init.d/networking restart RTNETLINK answers: File exists Failed to bring up eth1. ...done. I have checked the question here which shows the same problem like the one I encountered: Can only bring up one of two interfaces But it seems it's not really solved. And in my situation, I need the 2 ips to use 2 different gateways. So how to fix this problem? Edit1, changed the example config ip from 192.168.0.0/16 subnet to another 'real' subnet. Edit2, the purpose of doing this is fairly simple. Because the ip range I previous in don't have more room for new servers, and I have to move to another ip range. So I want to make the public servers bind to 2 ips for the transition period. I only have really limited knowledge about routing and subnet. @BillThor @rackandboneman, would you please give me some keywords or links on how to setup route for 2 ips? and @Mike Pennington, how do you know I speak chinese?

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  • How to set up IP forwarding on Nexenta (Solaris)?

    - by Gleb
    I am trying to set up IP forwarding on my Nexenta box: root@hdd:~# uname -a SunOS hdd 5.11 NexentaOS_134f i86pc i386 i86pc Solaris The box has 2 network interfaces: root@hdd:~# ifconfig -a lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 e1000g1: flags=1001100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4,FIXEDMTU> mtu 1500 index 2 inet 192.168.12.2 netmask ffffff00 broadcast 192.168.12.255 ether 68:5:ca:9:51:b8 myri10ge0: flags=1100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4> mtu 9000 index 3 inet 10.10.10.10 netmask ffffff00 broadcast 10.10.10.255 ether 0:60:dd:47:87:2 lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1 inet6 ::1/128 192.168.12.0 is my normal LAN with 192.168.12.1 being the firewall/gateway 10.10.10.0 is a separate LAN for iSCSI (with no internet access) I want to set up IP forwarding so that a computer on 10.10.10.0 will be able to access the internet by using 10.10.10.10 as a gateway (I don't need any port forwarding) I have turned on IP forwarding: root@hdd:~# routeadm Configuration Current Current Option Configuration System State --------------------------------------------------------------- IPv4 routing disabled disabled IPv6 routing disabled disabled IPv4 forwarding enabled enabled IPv6 forwarding disabled disabled Routing services "route:default ripng:default" Routing daemons: STATE FMRI disabled svc:/network/routing/rdisc:default disabled svc:/network/routing/route:default disabled svc:/network/routing/legacy-routing:ipv4 disabled svc:/network/routing/legacy-routing:ipv6 disabled svc:/network/routing/ripng:default online svc:/network/routing/ndp:default But when I dry to start ipnat, I get an error: root@hdd:~# ipnat -CF -f /etc/ipf/ipnat.conf ioctl(SIOCGNATS): I/O error Here is the config: root@hdd:~# cat /etc/ipf/ipnat.conf #!/sbin/ipnat -f - # map e1000g1 10.10.10.10/24 -> 192.168.12.2/32 So the question is how to fix this.. Thanks in advance!

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  • using pf for packet filtering and ipfw's dummynet for bandwidth limiting at the same time

    - by krdx
    I would like to ask if it's fine to use pf for all packet filtering (including using altq for traffic shaping) and ipfw's dummynet for bandwidth limiting certain IPs or subnets at the same time. I am using FreeBSD 10 and I couldn't find a definitive answer to this. Googling returns such results as: It works It doesn't work Might work but it's not stable and not recommended It can work as long as you load the kernel modules in the right order It used to work but with recent FreeBSD versions it doesn't You can make it work provided you use a patch from pfsense Then there's a mention that this patch might had been merged back to FreeBSD, but I can't find it. One certain thing is that pfsense uses both firewalls simultaneously so the question is, is it possible with stock FreeBSD 10 (and where to obtain the patch if it's still necessary). For reference here's a sample of what I have for now and how I load things /etc/rc.conf ifconfig_vtnet0="inet 80.224.45.100 netmask 255.255.255.0 -rxcsum -txcsum" ifconfig_vtnet1="inet 10.20.20.1 netmask 255.255.255.0 -rxcsum -txcsum" defaultrouter="80.224.45.1" gateway_enable="YES" firewall_enable="YES" firewall_script="/etc/ipfw.rules" pf_enable="YES" pf_rules="/etc/pf.conf" /etc/pf.conf WAN1="vtnet0" LAN1="vtnet1" set skip on lo0 set block-policy return scrub on $WAN1 all fragment reassemble scrub on $LAN1 all fragment reassemble altq on $WAN1 hfsc bandwidth 30Mb queue { q_ssh, q_default } queue q_ssh bandwidth 10% priority 2 hfsc (upperlimit 99%) queue q_default bandwidth 90% priority 1 hfsc (default upperlimit 99%) nat on $WAN1 from $LAN1:network to any -> ($WAN1) block in all block out all antispoof quick for $WAN1 antispoof quick for $LAN1 pass in on $WAN1 inet proto icmp from any to $WAN1 keep state pass in on $WAN1 proto tcp from any to $WAN1 port www pass in on $WAN1 proto tcp from any to $WAN1 port ssh pass out quick on $WAN1 proto tcp from $WAN1 to any port ssh queue q_ssh keep state pass out on $WAN1 keep state pass in on $LAN1 from $LAN1:network to any keep state /etc/ipfw.rules ipfw -q -f flush ipfw -q add 65534 allow all from any to any ipfw -q pipe 1 config bw 2048KBit/s ipfw -q pipe 2 config bw 2048KBit/s ipfw -q add pipe 1 ip from any to 10.20.20.4 via vtnet1 out ipfw -q add pipe 2 ip from 10.20.20.4 to any via vtnet1 in

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  • How do I make dnsmasq serve IP addresses via IPoIB?

    - by Matt
    I have a cluster farm that I'm setting up. The nodes (computers in the farm) are connected via ethernet & IP over Infiniband. I'm needing to netboot the nodes and thought dnsmasq would fit well as it provides all the features including support for DHCP over IB and it works great for our ethernet setup. However, I can't seem to get it to provide IP addresses to the infiniband adaptors on the nodes. Each node is running an Ubuntu desktop 12.04 LTS. The dnsmasq server is running on ubuntu server 12.04LTS and has the following test config: dhcp-authoritative domain-needed bogus-priv expand-hosts no-hosts domain=local dhcp-range=eth0,10.0.0.10,10.0.0.255,12h dhcp-option=eth0,3,10.0.0.1 dhcp-range=ib0,10.1.1.10,10.1.1.255,12h dhcp-option=ib0,3,10.1.1.1 log-queries log-dhcp IPoIB works between nodes when configured statically but not with dhcp. On the nodes the file /etc/network/interfaces contains auto lo iface lo inet loopback auto ib0 iface ib0 inet dhcp #iface ib0 inet static #address 10.1.1.5 #netmask 255.0.0.0 up echo connected >`find /sys -name mode | grep ib0` Is there something I need to do on the client or server end to make this work?

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  • Debian/OVH: How to configure multiple Failover IP on the same Xen (Debian) Virtual Machine?

    - by D.S.
    I have a problem on a Xen virtual machine (running latest Debian), when I try to configure a second failover IP address. OVH reports that my IP is misconfigured and they complaint they receive a massive quantity of ARP packets from this IPs, so they are going to block my IP unless I fix this issue. I suspect there's a routing issue, but I don't know (and can't find any useful info on the provider's website, and their support doesn't provide me a valid solution, just bounce me to their online - useless - guides). My /etc/network/interfaces look like this: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address AAA.AAA.AAA.AAA netmask 255.255.255.255 broadcast AAA.AAA.AAA.AAA post-up route add 000.000.000.254 dev eth0 post-up route add default default gw 000.000.000.254 dev eth0 # Secondary NIC auto eth0:0 iface eth0:0 inet static address BBB.BBB.BBB.BBB netmask 255.255.255.255 broadcast BBB.BBB.BBB.BBB And the routing table is: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 000.000.000.254 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 0.0.0.0 000.000.000.254 0.0.0.0 UG 0 0 0 eth0 In these examples (true IP addresses are replaced by fake ones, guess why :)), 000.000.000.000 is my main server's IP address (dom0), 000.000.000.254 is the default gateway OVH recommends, AAA.AAA.AAA.AAA is the first IP Failover and BBB.BBB.BBB.BBB is the second one. I need both AAA.AAA.AAA.AAA and BBB.BBB.BBB.BBB to be publicly reachable from Internet and point to my domU, and to be able to access Internet from inside the virtual machine (domU). I am using eth0 and eth0:0 because due to OVH support, I have to assign both IPs to the same MAC address and then create a virtual eth0:0 interface for the second IP. Any suggestion? What am I doing wrong? How can I stop OVH complaining about ARP flood? Many thanks in advance, DS

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  • Ubuntu second static IP, ifconfig, /etc/network/interfaces

    - by Schmoove
    I would like to add a second static IP to my local Ubuntu 11.10 desktop machine and have it automatically available after rebooting. So far I am successfully using ifconfig to to temporarily set up an alias for my primary network interface: # ifconfig eth1:0 192.168.178.3 up # ifconfig eth1 Link encap:Ethernet HWaddr c8:60:00:ef:a3:d9 inet addr:192.168.178.2 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::ca60:ff:feef:a3d9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:61929 errors:0 dropped:0 overruns:0 frame:0 TX packets:64034 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:45330863 (45.3 MB) TX bytes:28175192 (28.1 MB) Interrupt:42 Base address:0x4000 eth1:0 Link encap:Ethernet HWaddr c8:60:00:ef:a3:d9 inet addr:192.168.178.3 Bcast:192.168.178.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:42 Base address:0x4000 However, when I add the following to /etc/network/interfaces, the alias is not up and running as expected after a reboot: # vi /etc/network/interfaces auto eth1:0 iface eth1:0 inet static address 192.168.178.3 netmask 255.255.255.0 I would like to know what to configure to get this to work. As a side note, I am running gnome shell.

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  • When I restart my LXC environment, the container does not re-bind to the IP address

    - by RoboTamer
    The IP does no longer respond to a remote ping With restart I mean: lxc-stop -n vm3 lxc-start -n vm3 -f /etc/lxc/vm3.conf -d -- /etc/network/interfaces auto lo iface lo inet loopback up route add -net 127.0.0.0 netmask 255.0.0.0 dev lo down route add -net 127.0.0.0 netmask 255.0.0.0 dev lo # device: eth0 auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address 192.22.189.58 netmask 255.255.255.248 gateway 192.22.189.57 broadcast 192.22.189.63 bridge_ports eth0 bridge_fd 0 bridge_hello 2 bridge_maxage 12 bridge_stp off post-up ip route add 192.22.189.59 dev br0 post-up ip route add 192.22.189.60 dev br0 post-up ip route add 192.22.189.61 dev br0 post-up ip route add 192.22.189.62 dev br0 -- /etc/lxc/vm3.conf lxc.utsname = vm3 lxc.rootfs = /var/lib/lxc/vm3/rootfs lxc.tty = 4 #lxc.pts = 1024 # pseudo tty instance for strict isolation lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 lxc.network.name = eth0 lxc.network.mtu = 1500 #lxc.cgroup.cpuset.cpus = 0 # security parameter lxc.cgroup.devices.deny = a # Deny all access to devices lxc.cgroup.devices.allow = c 1:3 rwm # dev/null lxc.cgroup.devices.allow = c 1:5 rwm # dev/zero lxc.cgroup.devices.allow = c 5:1 rwm # dev/console lxc.cgroup.devices.allow = c 5:0 rwm # dev/tty lxc.cgroup.devices.allow = c 4:0 rwm # dev/tty0 lxc.cgroup.devices.allow = c 4:1 rwm # dev/tty1 lxc.cgroup.devices.allow = c 4:2 rwm # dev/tty2 lxc.cgroup.devices.allow = c 1:9 rwm # dev/urandon lxc.cgroup.devices.allow = c 1:8 rwm # dev/random lxc.cgroup.devices.allow = c 136:* rwm # dev/pts/* lxc.cgroup.devices.allow = c 5:2 rwm # dev/pts/ptmx lxc.cgroup.devices.allow = c 254:0 rwm # rtc # mounts point lxc.mount.entry=proc /var/lib/lxc/vm3/rootfs/proc proc nodev,noexec,nosuid 0 0 lxc.mount.entry=devpts /var/lib/lxc/vm3/rootfs/dev/pts devpts defaults 0 0 lxc.mount.entry=sysfs /var/lib/lxc/vm3/rootfs/sys sysfs defaults 0 0

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  • management network to a network port for additional ones munin and monit

    - by paolo
    management network to a network port for additional ones munin and monit I want to build a separate Netzwek for server management. I have several network cards a linux / debian / ubuntu with computer. Set both network cards sin in the /etc/network/interfaces. # The primary network interface #allow-hotplug eth0 #iface eth0 inet dhcp auto eth0 iface eth0 inet static address 10.0.0.240 netmast 255.255.255.0 network 10.0.0.0 brodacast 10.0.0.255 gateway 10.0.0.254 auto eth1 iface eth1 inet static address 10.0.10.240 netmast 255.255.255.0 network 10.0.10.0 brodacast 10.0.10.255 post-up ip route add 10.0.0.0/24 dev eth0 src 10.0.0.240 table eth0-WAN post-up ip route add default via 10.0.0.254 table eth0-WAN post-up ip route add 10.0.10.0/24 dev eth1 src 10.0.10.240 table eth1-LAN post-up ip route add default via 10.0.10.200 table eth1-LAN post-up ip rule add from 10.0.0.240 table eth0-WAN post-up ip rule add from 10.0.10.240 table eth1-LAN still i adjusted / etc/iproute2/rt_tables and following routes set up in the /etc/network/interfaces I want to have both applications and the network interface separately as munin and monit only on eth1 and not have to eth0. it goes to the reboot but sometimes not always. # Traceroute-i eth1 10.0.10.200 not go what am I doing wrong?

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