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  • how to get ip address of my computer

    - by asthagoyal
    hello i want to get ipaddress of my computer in variable ip thru this code but it assign nothing in ip char comm[100]; int s=0; char ip[100]; sprintf(comm,"export ip=`/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`"); s=system(comm); printf("\n ip is %s",ip);

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  • How can I connect to AS/400 through TN5250?

    - by Swati Sarkar
    How will I find out my iseries server name? I checked through "nslookup" it gives one ip address & I tried to connect TN5250 session to cconnect but could not connect. from dos command line c:\nslookup default server : unknown ip address : 192.168.50.119 Then I tried ping with this IP address - it's giving reply from the above IP address Then I have given this id in TN5250 session, but says can not create a connection to the AS/400.

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  • Why is awstats reporting my static IP instead of Domain Name?

    - by Austin
    In AWStats under: "Links from an external page (other web sites except search engines)" it has generated a list of pages that had linked to my page. I see pages like: Bing, YouTube, HotFrog, etc.. However, there are many internal links within the pages. Towards the bottom it is reporting as followed: http://72.249.150.9/distributors.php 5 2.4 % http://72.249.150.9/contact/ 5 2.4 % http://72.249.150.9/catalog/ 4 1.9 % http://72.249.150.9/flex-point-hockey-grip.php 5 2.4 % http://72.249.150.9/sticky-grip-foam.php 5 2.4 % http://72.249.150.9/video.php 10 4.8 % http://72.249.150.9/dealers/ 5 2.4 % http://72.249.150.9/feedback/ 5 2.4 % http://72.249.150.9/products.php 10 4.8 % http://72.249.150.9/ergo-hockey-grip.php 5 2.4 %

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  • How can I make my livebox route to my external IP address for a computer in the DMZ?

    - by Noli
    I have a sagem livebox 2 (Fiber optic model), and have placed my computer in a DMZ. People from outside of my network can access my comp fine via its external dyndns.org address, yet when I try to call the public dyndns.org address from inside my network, I get redirected to the internal admin site on the router. How can I make it so that I can see my comp from the public address like everyone else? What kinds of questions should I be asking or looking into? Thanks

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  • Creating ip alias on bonded interface ie. bond0:1

    - by bobothechimp
    System: HP Proliant DL360 G5 running CentOS 5.4 Bonded interface is working fine for a long time. I just went to add an alias the way I always have on a regular interface, and on first check it works (pinging on the local box) but it is not accessable from outside (iptables is turned off). In addition with this setup the normal network response started to decline, hanging for around a minute before I could get a prompt on login. Here are my config files: [root network-scripts]# cat ifcfg-eth0 DEVICE=eth0 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no [root network-scripts]# cat ifcfg-eth1 DEVICE=eth1 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no [root network-scripts]# cat ifcfg-bond0 DEVICE=bond0 BONDING_OPTS="mode=1 miimon=100" BOOTPROTO=none ONBOOT=yes NETWORK=10.2.1.0 NETMASK=255.255.255.0 IPADDR=10.2.1.11 USERCTL=no [root network-scripts]# cat ifcfg-bond0:1 DEVICE=bond0:1 BOOTPROTO=static ONBOOT=yes NETWORK=10.2.1.0 NETMASK=255.255.255.0 IPADDR=10.2.1.12 USERCTL=no any thoughts?

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  • Dns.GetHostEntry is not giving me a good IP to pass to IPEndPoint function in my domain

    - by Beach Miles
    My c# code from my asynchronous socket client to get the address of my socket server. string testServerIP = "192.168.0.1"; IPHostEntry ipHostInfo = Dns.GetHostEntry(testServerIP); //time server address IPAddress ipAddress = ipHostInfo.AddressList[0]; IPEndPoint remoteEP = new IPEndPoint(ipAddress, port); I get the following error message from the above code. CheckServerReconnect:Cant connect to 192.168.0.1 The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for

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  • Cannot ping router with a static IP assigned?

    - by Uriah
    Alright. I am running Ubuntu LTS 12.04 and am trying to configure a local caching/master DNS server so I am using Bind9. First, here are some things via default DHCP: /etc/network/interfaces 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 # The primary network interface auto eth0 iface eth0 inet dhcp # The primary network interface - STATIC #auto eth0 #iface eth0 inet static # address 192.168.2.113 # netmask 255.255.255.0 # network 192.168.2.0 # broadcast 192.168.2.255 # gateway 192.168.2.1 # dns-search uclemmer.net # dns-nameservers 192.168.2.113 8.8.8.8 /etc/resolv.conf cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 192.168.2.1 search uclemmer.net ifconfig ifconfig eth0 Link encap:Ethernet HWaddr 00:14:2a:82:d4:9e inet addr:192.168.2.103 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::214:2aff:fe82:d49e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1067 errors:0 dropped:0 overruns:0 frame:0 TX packets:2504 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:153833 (153.8 KB) TX bytes:214129 (214.1 KB) Interrupt:23 Base address:0x8800 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:915 errors:0 dropped:0 overruns:0 frame:0 TX packets:915 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:71643 (71.6 KB) TX bytes:71643 (71.6 KB) ping ping -c 4 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=0.368 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=0.224 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=0.216 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.237 ms --- 192.168.2.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 2997ms rtt min/avg/max/mdev = 0.216/0.261/0.368/0.063 ms ping -c 4 google.com PING google.com (74.125.134.102) 56(84) bytes of data. 64 bytes from www.google-analytics.com (74.125.134.102): icmp_req=1 ttl=48 time=15.1 ms 64 bytes from www.google-analytics.com (74.125.134.102): icmp_req=2 ttl=48 time=11.4 ms 64 bytes from www.google-analytics.com (74.125.134.102): icmp_req=3 ttl=48 time=11.6 ms 64 bytes from www.google-analytics.com (74.125.134.102): icmp_req=4 ttl=48 time=11.5 ms --- google.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3003ms rtt min/avg/max/mdev = 11.488/12.465/15.118/1.537 ms ip route ip route default via 192.168.2.1 dev eth0 metric 100 192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.103 As you can see, with DHCP everything seems to work fine. Now, here are things with static IP: /etc/network/interfaces 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 # The primary network interface #auto eth0 #iface eth0 inet dhcp # The primary network interface - STATIC auto eth0 iface eth0 inet static address 192.168.2.113 netmask 255.255.255.0 network 192.168.2.0 broadcast 192.168.2.255 gateway 192.168.2.1 dns-search uclemmer.net dns-nameservers 192.168.2.1 8.8.8.8 I have tried dns-nameservers in various combos of *.2.1, *.2.113, and other reliable, public nameservers. /etc/resolv.conf cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 192.168.2.1 nameserver 8.8.8.8 search uclemmer.net Obviously, when I change the nameservers in the /etc/network/interfaces file, the nameservers change here too. ifconfig ifconfig eth0 Link encap:Ethernet HWaddr 00:14:2a:82:d4:9e inet addr:192.168.2.113 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::214:2aff:fe82:d49e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1707 errors:0 dropped:0 overruns:0 frame:0 TX packets:2906 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:226230 (226.2 KB) TX bytes:263497 (263.4 KB) Interrupt:23 Base address:0x8800 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:985 errors:0 dropped:0 overruns:0 frame:0 TX packets:985 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:78625 (78.6 KB) TX bytes:78625 (78.6 KB) ping ping -c 4 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. --- 192.168.2.1 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3023ms ping -c 4 google.com ping: unknown host google.com Lastly, here are my bind zone files: /etc/bind/named.conf.options cat /etc/bind/named.conf.options options { directory "/etc/bind"; // // // query-source address * port 53; notify-source * port 53; transfer-source * port 53; // If there is a firewall between you and nameservers you want // to talk to, you may need to fix the firewall to allow multiple // ports to talk. See http://www.kb.cert.org/vuls/id/800113 // If your ISP provided one or more IP addresses for stable // nameservers, you probably want to use them as forwarders. // Uncomment the following block, and insert the addresses replacing // the all-0's placeholder. // forwarders { // 0.0.0.0; // }; forwarders { // My local 192.168.2.113; // Comcast 75.75.75.75; 75.75.76.76; // Google 8.8.8.8; 8.8.4.4; // DNSAdvantage 156.154.70.1; 156.154.71.1; // OpenDNS 208.67.222.222; 208.67.220.220; // Norton 198.153.192.1; 198.153.194.1; // Verizon 4.2.2.1; 4.2.2.2; 4.2.2.3; 4.2.2.4; 4.2.2.5; 4.2.2.6; // Scrubit 67.138.54.100; 207.255.209.66; }; // // // //allow-query { localhost; 192.168.2.0/24; }; //allow-transfer { localhost; 192.168.2.113; }; //also-notify { 192.168.2.113; }; //allow-recursion { localhost; 192.168.2.0/24; }; //======================================================================== // If BIND logs error messages about the root key being expired, // you will need to update your keys. See https://www.isc.org/bind-keys //======================================================================== dnssec-validation auto; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; }; /etc/bind/named.conf.local cat /etc/bind/named.conf.local // // Do any local configuration here // // Consider adding the 1918 zones here, if they are not used in your // organization //include "/etc/bind/zones.rfc1918"; zone "example.com" { type master; file "/etc/bind/zones/db.example.com"; }; zone "2.168.192.in-addr.arpa" { type master; file "/etc/bind/zones/db.2.168.192.in-addr.arpa"; /etc/bind/zones/db.example.com cat /etc/bind/zones/db.example.com ; ; BIND data file for example.com interface ; $TTL 604800 @ IN SOA yossarian.example.com. root.example.com. ( 1343171970 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS yossarian.example.com. @ IN A 192.168.2.113 @ IN AAAA ::1 @ IN MX 10 yossarian.example.com. ; yossarian IN A 192.168.2.113 router IN A 192.168.2.1 printer IN A 192.168.2.200 ; ns01 IN CNAME yossarian.example.com. www IN CNAME yossarian.example.com. ftp IN CNAME yossarian.example.com. ldap IN CNAME yossarian.example.com. mail IN CNAME yossarian.example.com. /etc/bind/zones/db.2.168.192.in-addr.arpa cat /etc/bind/zones/db.2.168.192.in-addr.arpa ; ; BIND reverse data file for 2.168.192.in-addr interface ; $TTL 604800 @ IN SOA yossarian.example.com. root.example.com. ( 1343171970 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS yossarian.example.com. @ IN A 255.255.255.0 ; 113 IN PTR yossarian.example.com. 1 IN PTR router.example.com. 200 IN PTR printer.example.com. ip route ip route default via 192.168.2.1 dev eth0 metric 100 192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.113 I can SSH in to the machine locally at *.2.113 or at whatever address is dynamically assigned when in DHCP "mode". *2.113 is in my router's range and I have ports open and forwarding to the server. Pinging is enabled on the router too. I briefly had a static configuration working but it died after the first reboot. Please let me know what other info you might need. I am beyond frustrated/baffled.

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  • There's IP but can't reach gateway

    - by icky
    I have just installed ubuntu 12.04 on my new laptop, and brought it back to home, but I found the wireless network does not work. Strangely, it has the correct ip, but can't connect to the gateway. ifconfig gives ip 192.168.64.36, with broadcast 192.168.79.255 and mask 255.255.240.0, this are all correct, the gateway is at 192.168.64.1 cat /etc/resolv.conf nameserver 192.168.64.1 nameserver 127.0.0.1 which i think it's also right. but when I ping 192.168.64.1, all packages are lost. Please help me with this, I really do not know what happened to my network settings. Huckle, Thank you for your reply ifconfig wlan0 Link encap:Ethernet Hwaddr 88:f9:af:2a:ca:1b inet addr:192.168.64.36 Bcast:192.168.79.255 Mask:255.255.240.0 inet6 addr: fe80::8a9f:faff:fea2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:27 errors:0 dropped:0 overruns:0 frame:0 TX packets:376 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3950 TX byetes:60288 iwconfig wlan0 IEEE 802.11bgn ESSID:"Chiono" Mode:Managed Frequency:2.417 GHz Access Point: 82:54:99:94:6D:43 Bit Rate=13.5 Mb/s Tx-Power=13 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on Link Quality=70/70 Signal Level=-32 dBm Rx invalid nwid:0 Rx invalid crypt:0 RX invalid frag:0 Tx excessive retries: 9 Invalid misc:10 Missed beacon:0 route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 192.168.64.1 0.0.0.0 UG 0 0 0 wlan0 link-local * 255.255.0.0 U 1000 0 0 wlan0 192.168.64.0 * 255.255.240.0 U 2 0 0 0 wlan0 Thank you very much

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  • How ISP or dns server find the nameserevr [on hold]

    - by IT researcher
    I saw some articles about how DNS propagation happens.I know that ISP or DNS server(such as google public dns) cache the ip address of website which it uses to convert domain name to ip address. But my doubt is from where these ISP or dns serevr know which nameserver to go for particular domain name. for example a domain.com has two name servers ns1.domain.com and ns2.domain.com. But how the ISP server or dns server know that it uses these name server and i have to send request to this name server.So where does this record mainatined?

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  • Distributed development staff needing a common IP range

    - by bakasan
    I work on a development staff that is geographically distributed, mostly all throughout the state of CA, but several key members also must travel frequently. We rely quite heavily on a 3rd party provider API for a great deal of our subsystems (can't get into who it is or what they do). The 3rd party however is quite stringent on network access and have no notion of a development sandbox. Access is restricted to 2, 3 IP numbers and that's about it. Once we account for our production servers, that leaves us with an IP or two to spare for our dev team--which is still problematic as people's home IP changes, people travel, we have more than 2 devs, etc. Wide IP blocks are not permitted by the 3rd party. Nor will they allow dynamic DNS type services. There is no simple console to swap IPs on the fly either (e.g. if a dev's IP at home changes or they are on the road). As none of us are deep network experts, I'm wondering what our viable options are? Are there such things as 3rd party hosts to VPNs? Generally I think of a VPN as a mechanism to gain access to a home office, but the notion would be a 3rd party VPN that we'd all connect to and we'd register this as an IP origin w/ our 3rd party. We've considered using Amazon EC2 to effectively host a dev environment for each dev and using that to connect. Amazon only gives you so many static IPs however (I believe 5?) so this would only be a stop gap solution until our team size out strips our IP count at Amazon. Those were the only viable thoughts that I had, but again, I'm far from a networking guy. Tried searching for similar threads, but I'm not even sure I know the right vernacular to look around for.

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  • Which IP should I use for my nameserver

    - by Luke Bream
    Sorry to ask whats probably very obvious question. I have just got a new server that is fantastically cheap but unfortunatly doesnt come with any technical support and Im very out of my depth ! My hosting company has provided the following information... Below you will find your additional IP addresses added to the server 5.9.36.51 Please note that you can use the subnet only for this server. IP: 5.9.225.64 /27 Mask: 255.255.255.224 Broadcast: 5.9.225.95 Useable IP addresses: 5.9.225.65 to 5.9.225.94 It has cPanel with WHM and im going through the setup... I have a number of questions... my domian is purchased from godaddy and I want to use it as the name server. Question 1: Which IP or IP's do I enter into the godaddy interface for ns1.mydomian.com ns2.mydomain.com Question 2: In the WHM nameserver setup what do I enter for... Please enter an IP address for each of your nameservers. ns1.mydomain.com ?????? ns2.mydomain.com ?????? Add "A Entries" for Hostname IP for Entry: ????????? Thanks for aany help you can give Luke

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  • Possible to IPSec VPN Tunnel Public IP Addresses?

    - by caleban
    A customer uses an IBM SAS product over the internet. Traffic flows from the IBM hosting data center to the customer network through Juniper VPN appliances. IBM says they're not tunneling private IP addresses. IBM says they're tunneling public IP addresses. Is this possible? What does this look like in the VPN configuration and in the packets? I'd like to know what the source/destination ip/ports would look like in the encrypted tunneled IPSec Payload and in the IP packet carrying the IPSec Payload. IPSec Payload: source:1.1.1.101:1001 destination:2.2.2.101:2001 IP Packet: source:1.1.1.1:101 destination:2.2.2.1:201 Is it possible to send public IP addresses through an IPSec VPN tunnel? Is it possible for IBM to send a print job from a server on their network using the static-nat public address over a VPN to a printer at a customer network using the printer's static-nat public address? Or can a VPN not do this? Can a VPN only work with interesting traffic from and to private IP addresses?

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  • pptpd-logwtmp.so config wrong ip address

    - by rgc
    i have setup a pptp vpn on ubuntu 10.04, and i config local ip address , remote ip address as following: local IP address 10.0.30.100 remote IP address 192.168.13.100 after i use windows to connect to vpn server in windows , i only could send packets, can not receive any packets. i also check the pptp log in ubuntu server, and find this strange thing rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 10.0.30.100>] rcvd [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.13.100> <ms-dns1 202.119.32.6> <ms-dns2 202.119.32.12>] sent [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 192.168.13.100> <ms-dns1 202.119.32.6> <ms-dns2 202.119.32.12>] Cannot determine ethernet address for proxy ARP local IP address 10.0.30.100 remote IP address 192.168.13.100 pptpd-logwtmp.so ip-up ppp0 **172.25.146.174** i did not set 172.25.146.174, it should be 192.168.13.100, can anyone tell me what should i do to fix this problem?

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  • Domain names timing out after VPS IP change

    - by Fourjays
    I rent a CentOS 5 VPS from a UK-based provider, with DirectAdmin also installed. On Thursday night, they carried out planned maintenance to changed the two IPs I had been assigned to two new ones. On Friday, after the change had taken place, I updated my domain name records to reflect the IP change. Since then, all of the domains pointing to the VPS are timing out. Additionally, DirectAdmin was also not responding, but was was resolved by running the ipswap scripts as found in the DirectAdmin knowledgebase. It did not fix my domains though. I have contacted the VPS provider but I have been waiting for a response for some time now. I have checked again, and again, and all the IPs referenced in DirectAdmin are correct. If I go to the server IP in my browser it responds with "Apache is functioning normally." Email accounts on the server are also functioning correctly. But if I access a domain itself, it times out. Running a ping and a DNS look-up, I can confirm the nameserver IPs are correct. If I run a trace route it reaches an IP that is similar to my VPS IPs (last 2 blocks are different) before timing out (it never shows my server IP). I am relatively new to VPS management so don't have a vast wealth of experience with troubleshooting problems on them. I have checked all of the httpd configuration files, which don't seem to have any IP references in them at all. Looking in the Apache error logs, what errors there are do not coincide with times I have tried to access the site. Is this issue at my provider's end? Is there anything else I can check or test, to rule out post-IP-change problems with my server configuration? It was all running fine prior to the IP change.

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  • Possible to IPSec VPN Tunnel Public IP Addresses?

    - by caleban
    A customer uses an IBM SAS product over the internet. Traffic flows from the IBM hosting data center to the customer network through Juniper VPN appliances. IBM says they're not tunneling private IP addresses. IBM says they're tunneling public IP addresses. Is this possible? What does this look like in the VPN configuration and in the packets? I'd like to know what the source/destination ip/ports would look like in the encrypted tunneled IPSec Payload and in the IP packet carrying the IPSec Payload. IPSec Payload: source:1.1.1.101:1001 destination:2.2.2.101:2001 IP Packet: source:1.1.1.1:101 destination:2.2.2.1:201 Is it possible to send public IP addresses through an IPSec VPN tunnel? Is it possible for IBM to send a print job from a server on their network using the static-nat public address over a VPN to a printer at a customer network using the printer's static-nat public address? Or can a VPN not do this? Can a VPN only work with interesting traffic from and to private IP addresses?

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  • Getting a domain sub-directory url for a new server

    - by Xianlin
    I have an web application server running tomcat and i need to publish my APIs to internet users. However I don't have a domain name for this server and I can only put the ip address of this server (e.g. 145.XXX.XXX.XXX) to point out where my API xml files are located. I have another web server running with a domain name "http://www.webserver.com" registered on the internet and I want to make use of its domain name to server my web application server API xml files location. How can I do that? using "www.webserver.com/api" or using "api.webserver.com"? which is better? Also I wonder if I want to publish a "rstp://145.XXX.XXX.XXX" web link for video streaming purpose, can I use "rstp://www.webserver.com/api" to replace it and how to do it? I always thought the url contain domain sub-directory name cannot point to another IP address, it only can point to another folder location on the webserver itself.

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  • IP queue buffer

    - by summerbulb
    I seem to have an issue with IP queue. I have a linux machine that I am using to run some experiments. The linux machine is configured to be a router, having two NICs, connecting two other computers, and managing their network traffic. All incoming packages are captured, using iptables, and analyzed by a C application. The application analyzing the packets has a built-in delay, as part of the experiment. So I have one very fast computer sending packets through my linux-router and a (relatively) slow linux-router that analyses and deals with the packets, one by one. This situation leads to the fact that when I fire up a sender application on one of the computers connected to the linux-router, my IP queue on the linux-router gets filled up (almost) instantaneously. The IP queue's max length is currently set to 1024, and if it overflows, the packets are dropped. This is expected and i'm OK with it. But, (and this is where it gets interesting), every now and then I get the following error: "Failed to receive netlink message: No buffer space available" At start, I thought this was due to the IP queue overflow, but after some analysis i found that sometimes I get the error even if the IP queue buffer did not overflow, and sometime I DON'T get the message even though the buffer DID overflow. When I run > cat /proc/net/ip_queue, I get the following table (also used to monitor the IP queue overflow): Peer PID : 27389 Copy mode : 2 Copy range : 65535 Queue length : 0 Queue max. length : 1024 Queue dropped : 1166875 Netlink dropped : 2916 Looking at the last two values, Queue dropped seems to refer to packets that did not manage to get into the IP queue because the buffer was full. I can see this value rise as I bombard the linux-router. Netlink dropped ( as it's name implies :) ) seems to have to do with the error i'm getting. I did my best to search for material on this error, but wasn't able to find anything that seemed to point me in the required direction. Bottom line: Why am I getting this error and what can I do to avoid it?

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  • A record point not working

    - by Peter
    I'm trying to do an A record point to transfer the hosting of a domain from one provider to another. I don't want to change the nameservers as this will result in emails going down. The output when I dig for the domain shows the correct IP (78.46.63.87) for the new host. I know A records can take a while to propagate but Its been over 36hrs now and I still keep getting this error(below) when I try to pull the domain through as an addon domain via Cpanel on the new host. Are the old nameservers conflicting with the A record point? here's the error: Using nameservers with the following IPs: 208.80.125.4,208.80.126.4,208.80.124.4,208.94.148.4 Sorry, the domain is already pointed to an IP address that does not appear to use DNS servers associated with this server. Please transfer the domain to this servers nameservers or have your administrator add one of its nameservers to /etc/ips.remotedns and make the proper A entries on that remote nameserver.

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