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  • pppoe connection to dsl model

    - by VJo
    Hello, I am connecting to the internet through a pppoe connection, but for some reason I can not connect to my modem (it's address is 192.168.1.1). Before I set my pppoe connection, I could connect. So, is there a way? EDIT The output of ifconfig is : r@PlaviZec:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:13:d4:f7:02:d4 inet6 addr: fe80::213:d4ff:fef7:2d4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2811 errors:0 dropped:0 overruns:0 frame:0 TX packets:2801 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2538831 (2.5 MB) TX bytes:448591 (448.5 KB) Interrupt:21 Base address:0xa000 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:28 errors:0 dropped:0 overruns:0 frame:0 TX packets:28 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1600 (1.6 KB) TX bytes:1600 (1.6 KB) ppp0 Link encap:Point-to-Point Protocol inet addr:92.229.42.177 P-t-P:213.191.64.59 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 RX packets:2794 errors:0 dropped:0 overruns:0 frame:0 TX packets:2741 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:3 RX bytes:2476277 (2.4 MB) TX bytes:381240 (381.2 KB)

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  • Wireless is connected, but can't browse the Internet (or connection goes completely)

    - by user261007
    I'd like some help with this, please. Will be very glad is anyone will point me in the right direction. Thank you in advance! This is when the connection is present and browsing: eth0 Link encap:Ethernet HWaddr 50:46:5d:4a:9e:4f UP BROADCAST MULTICAST MTU:1500 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:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) 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:2666 errors:0 dropped:0 overruns:0 frame:0 TX packets:2666 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:228844 (228.8 KB) TX bytes:228844 (228.8 KB) wlan0 Link encap:Ethernet HWaddr dc:85:de:1c:91:f9 inet addr:192.168.1.147 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::de85:deff:fe1c:91f9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:18780 errors:0 dropped:0 overruns:0 frame:0 TX packets:12817 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:21198762 (21.1 MB) TX bytes:1746891 (1.7 MB) When connection goes: wlan0 Link encap:Ethernet HWaddr dc:85:de:1c:91:f9 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:209503 errors:0 dropped:0 overruns:0 frame:0 TX packets:132560 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:268811733 (268.8 MB) TX bytes:15479814 (15.4 MB)

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  • Very slow wireless connection (unrelated to power management) using Netgear N150 WNA1100 in 12.04

    - by vgaldikas
    I am using a Netgear N150 WNA1100 USB Adapter. The network driver is: ath9k_htc. When I use Ubuntu 12.04 my wireless connection is much slower than when I use the WNA1100 with my Windows 7 installation on the same machine. I have been researching this and the most common reason for this seems to be related to power management. However for me this is off by default. I had entered a bunch of different commands and, at one stage, I got it to work at full power. But then I rebooted the machine and it went back to slow again. After entering the different commands I was afraid that I may have messed something up, so I performed a fresh install of Ubuntu. I still have the same problem. My wireless connection is still much slower when using Ubuntu than when using Windows 7. I am not sure what other info could help... EDIT: Ok, I have made live usb from the iso file I used to install Ubuntu on this pc, and ran it on my laptop. Still the same problem. However la[top works grand on cable. I suppose this means that my wireless adapter or network driver can be eliminated as root of the problem.. So maybe to do with router itself? I use ZyXEL P-660HW-D1

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  • NFS: Server says "authenticated mount request", but client sees "access denied"

    - by zigdon
    I have two machine, an NFS server (RHEL) and a client (Debian). The server has NFS set up, exporting a particular directory: server:~$ sudo /usr/sbin/rpcinfo -p localhost program vers proto port 100000 2 tcp 111 portmapper 100000 2 udp 111 portmapper 100024 1 udp 910 status 100024 1 tcp 913 status 100021 1 udp 53391 nlockmgr 100021 3 udp 53391 nlockmgr 100021 4 udp 53391 nlockmgr 100021 1 tcp 32774 nlockmgr 100021 3 tcp 32774 nlockmgr 100021 4 tcp 32774 nlockmgr 100007 2 udp 830 ypbind 100007 1 udp 830 ypbind 100007 2 tcp 833 ypbind 100007 1 tcp 833 ypbind 100011 1 udp 999 rquotad 100011 2 udp 999 rquotad 100011 1 tcp 1002 rquotad 100011 2 tcp 1002 rquotad 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100003 2 tcp 2049 nfs 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100005 1 udp 1013 mountd 100005 1 tcp 1016 mountd 100005 2 udp 1013 mountd 100005 2 tcp 1016 mountd 100005 3 udp 1013 mountd 100005 3 tcp 1016 mountd server$ cat /etc/exports /dir *.my.domain.com(ro) client$ grep dir /etc/fstab server.my.domain.com:/dir /dir nfs tcp,soft,bg,noauto,ro 0 0 All seems well, but when I try to mount, I see the following: client$ sudo mount /dir mount.nfs: access denied by server while mounting server.my.domain.com:/dir And on the server I see: server$ tail /var/log/messages Mar 15 13:46:23 server mountd[413]: authenticated mount request from client.my.domain.com:723 for /dir (/dir) What am I missing here? How should I be debugging this?

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  • Centos IPTables configuration for external firewall

    - by user137974
    Current setup Centos which is a Web, Mail (Postfix,Dovecot), FTP Server and Gateway with public ip and private ip (for LAN Gateway). We are planning to implement external firewall box and bring the server to LAN Please guide on configuring IPTables... Unable to receive mail and outgoing mail stays in postfix queue and is sent after delaying... The local ip of the server is 192.168.1.220 iptables -P INPUT DROP iptables -P FORWARD DROP iptables -P OUTPUT DROP incoming HTTP iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 443 -m state --state ESTABLISHED -j ACCEPT outgoing HTTP iptables -A OUTPUT -o eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT FTP iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 192.168.1.220 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp -s 192.168.1.220 --sport 21 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 192.168.1.220 --dport 1024:65535 -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A OUTPUT -p tcp -s 192.168.1.220 --sport 1024:65535 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT SMTP iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 192.168.1.220 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp -s 192.168.1.220 --sport 25 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp -s 192.168.1.220 --sport 1024:65535 -d 0/0 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -p tcp -s 0/0 --sport 25 -d 192.168.1.220 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT POP3 iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 192.168.1.220 --dport 110 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp -s 192.168.1.220 --sport 110 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT

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  • Can access SSH but can't access cPanel web server

    - by Tom
    I've built a Cent OS 6.0 vps and then i've installed the latest cPanel/WHM. This isn't my first installation but i've noticed something weird especially that i've never used the 6.0 version.. when i tried to install cPanel, it didn't recognize wget so installed it, then cPanel said that Perl isn't installed, i've installed that and the installation went well since then. Now, when i've tried to access the server via the browser with the IP Adress as i've used to, it didn't work, it was just loading forever, i tried the 2087 port, still the same. but SSH works. I've also tried the commands to start the server manually but none of them worked. How to fix that? Edit: iptables -nL Result root@server [~]# iptables -nL Chain INPUT (policy ACCEPT) target prot opt source destination acctboth all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT) target prot opt source destination REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) target prot opt source destination acctboth all -- 0.0.0.0/0 0.0.0.0/0 Chain acctboth (2 references) target prot opt source destination tcp -- 216.119.149.168 0.0.0.0/0 tcp dpt:80 tcp -- 0.0.0.0/0 216.119.149.168 tcp spt:80 tcp -- 216.119.149.168 0.0.0.0/0 tcp dpt:25 tcp -- 0.0.0.0/0 216.119.149.168 tcp spt:25 tcp -- 216.119.149.168 0.0.0.0/0 tcp dpt:110 tcp -- 0.0.0.0/0 216.119.149.168 tcp spt:110 icmp -- 216.119.149.168 0.0.0.0/0 icmp -- 0.0.0.0/0 216.119.149.168 tcp -- 216.119.149.168 0.0.0.0/0 tcp -- 0.0.0.0/0 216.119.149.168 udp -- 216.119.149.168 0.0.0.0/0 udp -- 0.0.0.0/0 216.119.149.168 all -- 216.119.149.168 0.0.0.0/0 all -- 0.0.0.0/0 216.119.149.168 all -- 0.0.0.0/0 0.0.0.0/0

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  • Flushing iptables broke my pipe, how can I save my instance?

    - by Niels
    I was setting up my iptables when I performed a iptables -F and my ssh pipe broke. This is the last output of my session: root@alfapaints:~# iptables -L Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere state NEW,ESTABLISHED tcp dpt:2222 ACCEPT tcp -- li465-68.members.linode.com anywhere state NEW,ESTABLISHED tcp dpt:nrpe ACCEPT tcp -- anywhere anywhere tcp dpt:9200 state NEW,ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp dpt:http state NEW,ESTABLISHED ACCEPT udp -- anywhere anywhere udp spt:domain Chain FORWARD (policy DROP) target prot opt source destination Chain OUTPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere state ESTABLISHED tcp spt:2222 ACCEPT tcp -- anywhere anywhere state ESTABLISHED tcp spt:nrpe ACCEPT tcp -- anywhere anywhere tcp spt:9200 state ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp spt:http state ESTABLISHED ACCEPT udp -- anywhere anywhere udp dpt:domain root@alfapaints:~# iptables -F Write failed: Broken pipe I tested my connection just before and I was able to connect with ssh. Now I did a nmap scan and not a single port is open anymore. I know my VPS is running on VMWare ESXi, could a reboot help? Or if not could I attach and mount the disk to another vm to save the data? Does anybody have some advise? And maybe an explanation what happend or what could have cause my pipe to break? ps: I didn't save my rules on the config directories of iptables. But used a file I stored in ~/rules.config to apply my rules like this: iptables-restore < rules.config So probably a reboot would help? Thanks a lot in advance.

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  • Iptables Forwarding problem

    - by ankit
    Hi all, I had initally asked question about sertting up my linux box for natting for my home network and was given suggestions in the thread here. Did not want to clutter the old question so starting a new one here. based on the earlier suggestions, i have come up with the following rules ... :PREROUTING ACCEPT [1:48] :OUTPUT ACCEPT [12:860] :POSTROUTING ACCEPT [3:228] -A POSTROUTING -o eth0 -j MASQUERADE COMMIT *filter :INPUT DROP [3:228] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -i eth0 -p icmp -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 22 -j ACCEPT -A FORWARD -i eth1 -p icmp -j ACCEPT -A FORWARD -i eth1 -p tcp -m tcp --dport 80 -j ACCEPT -A FORWARD -i eth1 -p tcp -m tcp --dport 443 -j ACCEPT -A OUTPUT -p icmp -j ACCEPT -A OUTPUT -j ACCEPT COMMIT If you notice, i do have the proper MASQURADING rule and the proper FORWARD filter rule as well. However i am facing 2 problems On the linux box itself DNS resolving is not working the lan clients connected to the linux box, are still not able to get to internet. when i ping something from them, i see the DROP count in iptables INPUT rule increasing. now my question is, when i am pinging something from the lan client, how come it is being matched by the input chain ?! should it be in the forward chain ? Chain INPUT (policy DROP 20 packets, 2314 bytes) pkts bytes target prot opt in out source destination 99 9891 ACCEPT all -- lo any anywhere anywhere 0 0 ACCEPT icmp -- eth0 any anywhere anywhere 0 0 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:http 0 0 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:https 122 9092 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:ssh Thanks ankit

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  • NFS: Server says "authenticated mount request", but client sees "access denied"

    - by zigdon
    I have two machine, an NFS server (RHEL) and a client (Debian). The server has NFS set up, exporting a particular directory: server:~$ sudo /usr/sbin/rpcinfo -p localhost program vers proto port 100000 2 tcp 111 portmapper 100000 2 udp 111 portmapper 100024 1 udp 910 status 100024 1 tcp 913 status 100021 1 udp 53391 nlockmgr 100021 3 udp 53391 nlockmgr 100021 4 udp 53391 nlockmgr 100021 1 tcp 32774 nlockmgr 100021 3 tcp 32774 nlockmgr 100021 4 tcp 32774 nlockmgr 100007 2 udp 830 ypbind 100007 1 udp 830 ypbind 100007 2 tcp 833 ypbind 100007 1 tcp 833 ypbind 100011 1 udp 999 rquotad 100011 2 udp 999 rquotad 100011 1 tcp 1002 rquotad 100011 2 tcp 1002 rquotad 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100003 4 udp 2049 nfs 100003 2 tcp 2049 nfs 100003 3 tcp 2049 nfs 100003 4 tcp 2049 nfs 100005 1 udp 1013 mountd 100005 1 tcp 1016 mountd 100005 2 udp 1013 mountd 100005 2 tcp 1016 mountd 100005 3 udp 1013 mountd 100005 3 tcp 1016 mountd server$ cat /etc/exports /dir *.my.domain.com(ro) client$ grep dir /etc/fstab server.my.domain.com:/dir /dir nfs tcp,soft,bg,noauto,ro 0 0 All seems well, but when I try to mount, I see the following: client$ sudo mount /dir mount.nfs: access denied by server while mounting server.my.domain.com:/dir And on the server I see: server$ tail /var/log/messages Mar 15 13:46:23 server mountd[413]: authenticated mount request from client.my.domain.com:723 for /dir (/dir) What am I missing here? How should I be debugging this?

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  • Experiences with (free) embedded TCP / IP stacks?

    - by Dan
    Does anyone have especially good (or bad) experiences with any of the following embedded TCP / IP stacks? uIP lwIP Bentham's TCP/IP Lean implementation The TCP/IP stack from this book My needs are for a solid, easy-to-port stack. Code size isn't terribly important, performance is relatively important, but ease of use & porting is very important. The system will probably use an RTOS, that hasn't been decided, but in my experience most stacks can be used with or without an RTOS. Most likely the platform will be an ARM variant (ARM7 or CM3 in all likelihood). Not too concerned about bolting the stack to the Ethernet driver, so that isn't a big priority in the selection. I'm not terribly interested in extracting a stack out of an OS, such as Linux, RTEMS, etc. I'm also not interested in commercial offerings such as Interniche, Micrium, etc... The stack doesn't need all sorts of bells & whistles, doesn't need IPv6, and I don't need any stuff on top of it (web servers, FTP servers, etc..) In fact it's possible that I'll only use UDP, although I can envision a couple scenarios where TCP would be preferable. Experiences with other stacks I've missed are of course also very much of interest. Thanks for your time & input.

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  • How to limit TCP writes to particular size and then block untlil the data is read

    - by ustulation
    {Qt 4.7.0 , VS 2010} I have a Server written in Qt and a 3rd party client executable. Qt based server uses QTcpServer and QTcpSocket facilities (non-blocking). Going through the articles on TCP I understand the following: the original implementation of TCP mentioned the negotiable window size to be a 16-bit value, thus maximum being 65535 bytes. But implementations often used the RFC window-scale-extension that allows the sliding window size to be scalable by bit-shifting to yield a maximum of 1 gigabyte. This is implementation defined. This could have resulted in majorly different window sizes on receiver and sender end as the server uses Qt facilities without hardcoding any window size limit. Client 1st asks for all information it can based on the previous messages from the server before handling the new (accumulating) incoming messages. So at some point Server receives a lot of messages each asking for data of several MB's. This the server processes and puts it into the sender buffer. Client however is unable to handle the messages at the same pace and it seems that client’s receiver buffer is far smaller (65535 bytes maybe) than sender’s transmit window size. The messages thus get accumulated at sender’s end until the sender’s buffer is full too after which the TCP writes on sender would block. This however does not happen as sender buffer is much larger. Hence this manifests as increase in memory consumption on the sender’s end. To prevent this from happening, I used Qt’s socket’s waitForBytesWritten() with timeout set to -1 for infinite waiting period. This as I see from the behaviour blocks the thread writing TCP data until the data has actually been sensed by the receiver’s window (which will happen when earlier messages have been processed by the client at application level). This has caused memory consumption at Server end to be almost negligible. is there a better alternative to this (in Qt) if i want to restrict the memory consumption at server end to say x MB's? Also please point out if any of my understandings is incorrect.

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  • internet sharing over wifi between ubuntu 11.10 and windows7

    - by Vivek Pradhan
    So i have looked up a lot of forums for these solution but haven't really found one that works. I have a laptop running ubuntu 11.10 connected to the ethernet cord at home and i want to share the internet over wifi with my friend's laptop running windows7. I did not think it would be so difficult, I tried a lot of things: I went to networks and then wireless and set up a wifi hotspot, my laptop got connected to it and the ipv4 was set to "shared to other computers". Thankfully the network was discoverable and after some tries my friend was able to connect to the network, but it still showed that there was no internet access. I tried coniguring the tcp addresses of the wifi on his laptop. Bottom line: did not work. I went to the network manager, clicked on create a new wireless network, created one with security WEP 40/128 bit passphrase, tried the other 2 options later, and did the same thing as with the wifi, this network was also not discoverable initially and after some tries, we could connect to it but then ICS was not working although there was a working internet on my ubuntu laptop. I would really appreciate if some one who has faced a similar problem and got it fixed to please give me a step by step solution of how to get this work, because this is a prety common problem with ubuntu distros I have noticed. Note: This however seems to work with ubuntu to ubuntu connections, but specifically cross OS connections like windows or my phone running android ICS are not able to see or if connect not able to share internet on my laptop

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  • Need help with chronic slow wifi connections

    - by mgeorge
    I have had chronic slow wifi connections on several networks for a while now, I think since my update to 12.04 when it came out. I have tried many of the tips and tricks already available out there in the forums with no luck (wicd, etc..). I want to see if any of you experts out there might be able to help me, and thanks in advance!! I use ubuntu 12.04 on a lenovo ideapad y650, and most networks I connect to lose the connection frequently or do not give appropriate bandwidth when I am connected. Here are some results of the usual go-to system checks: cat /etc/lsb-release; uname -a: DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.2 LTS" Linux mgeorge-lenovo 3.2.0-48-generic-pae #74-Ubuntu SMP Thu Jun 6 20:05:01 UTC 2013 i686 i686 i386 GNU/Linux lspci -nnk | grep -iA2 net: 04:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection [8086:4237] Subsystem: Intel Corporation WiFi Link 5100 AGN [8086:1211] Kernel driver in use: iwlwifi -- 08:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe [14e4:1698] (rev 10) Subsystem: Lenovo Device [17aa:3878] Kernel driver in use: tg3 lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 090c:7371 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) iwconfig: lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"Dyno" Mode:Managed Frequency:2.412 GHz Access Point: CC:5D:4E:46:0A:93 Bit Rate=150 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-40 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:948 Invalid misc:728 Missed beacon:0 eth0 no wireless extensions. rfkill list all: 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: yes Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no lsmod: Module Size Used by uvcvideo 67203 0 videodev 86588 1 uvcvideo nouveau 712674 3 ttm 65344 1 nouveau drm_kms_helper 45466 1 nouveau drm 197641 5 nouveau,ttm,drm_kms_helper i2c_algo_bit 13199 1 nouveau mxm_wmi 12893 1 nouveau wmi 18744 1 mxm_wmi joydev 17393 0 arc4 12473 2 snd_hda_codec_realtek 174313 1 snd_hda_codec_hdmi 31775 1 snd_hda_intel 32719 3 snd_hda_codec 109562 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0 snd_rawmidi 25424 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi psmouse 86520 0 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event serio_raw 13027 0 snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq iwlwifi 366509 0 mac80211 436493 1 iwlwifi snd 62218 16 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,sn d_rawmidi,snd_seq,snd_timer,snd_seq_device ideapad_laptop 17890 0 sparse_keymap 13658 1 ideapad_laptop cfg80211 178877 2 iwlwifi,mac80211 ir_lirc_codec 12739 0 lirc_dev 18700 1 ir_lirc_codec soundcore 14635 1 snd snd_page_alloc 14108 2 snd_hda_intel,snd_pcm ir_mce_kbd_decoder 12681 0 ir_sony_decoder 12462 0 ir_jvc_decoder 12459 0 ir_rc6_decoder 12459 0 ir_rc5_decoder 12459 0 rc_rc6_mce 12454 0 ir_nec_decoder 12459 0 video 19115 1 nouveau ene_ir 18019 0 rc_core 21263 10 ir_lirc_codec,ir_mce_kbd_decoder,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,rc_rc6_mce,ir_nec_decoder,ene_ir bnep 17830 2 rfcomm 38139 0 parport_pc 32114 0 bluetooth 158479 10 bnep,rfcomm ppdev 12849 0 binfmt_misc 17292 1 mac_hid 13077 0 lp 17455 0 parport 40930 3 parport_pc,ppdev,lp tg3 141414 0 nm-tool: NetworkManager Tool State: connected (global) - Device: eth0 ----------------------------------------------------------------- Type: Wired Driver: tg3 State: unavailable Default: no HW Address: 00:23:5A:CC:85:BD Capabilities: Carrier Detect: yes Wired Properties Carrier: off - Device: wlan0 [Dyno] -------------------------------------------------------- Type: 802.11 WiFi Driver: iwlwifi State: connected Default: yes HW Address: 00:22:FA:D0:94:CA Capabilities: Speed: 150 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) *Dyno: Infra, CC:5D:4E:46:0A:93, Freq 2412 MHz, Rate 54 Mb/s, Strength 81 WPA2 IPv4 Settings: Address: 10.0.0.43 Prefix: 24 (255.255.255.0) Gateway: 10.0.0.1 DNS: 10.0.0.1

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  • Can't connect nonlocally after 12.10 upgrade

    - by user101815
    I've just upgraded one of my systems from 12.04 to 12.10. Now I can't connect on that system beyond my local network. Connections within the local network seem to work fine, and I can make nonlocal connections from other machines (like the one I'm asking this question from). I suspect that some routing information has been messed up, but I don't know where to look for it. It's not a nameserver problem -- pinging outside sites by their IP addresses doesn't work either. I have another laptop next to this one, also running Kubuntu 12.10. On the one that can't connect, arp produces no output. On the other one, it produces 192.168.0.1 ether 00:23:69:fa:ce:ae C wlan0 On the working machine, the output of netstat starts with some tcp entries. On the nonworking one, those entries are absent. I asked this question on the Ubuntu forum but haven't gotten any answers there. One further complication: since the troublesome machine has no outside connection, it's extremely difficult to download anything to it. For what it's worth, "ping 8.8.8.8" produces "connect: Network is unreachable". Update: after a lot of fiddling, I have my external world back. I don't know what the key action was, but the first indication of progress was that "ping 8.8.8.8" worked. At that point I still didn't have a working nameserver, so external URLs didn't work. But I did this (based on an online post, of course): sudo dpkg-reconfigure resolvconf and answered Yes to all prompts. That did the trick!! Apparently my problem was unique, or close to it, since I couldn't find any online references to it: local net working, remote net not working, including explicit IP addresses. So I suppose that if no one else has this problem, no one cares about the solution!!

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  • Resetting TCP/IP Settings on Windows 8

    - by cpx
    Apparently, there's a command: netsh int ip reset which is known to reset TCP/IP settings for Windows XP/Vista/7 and I'm not sure how it works correctly on Windows 8. When I typed the command under command prompt (Admin) I got two errors as pointed out in the screenshot: Resetting , failed. Access is denied. At the end it said Resetting , OK! So, how do I confirm if it worked or not?

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  • DHCP not working after NetBIOS over TCP/IP disabled

    - by user27515
    I want to disable the "NetBIOS over TCP/IP" device in the device manager to free port 445. But after doing that my Internet stops working. I'm connected to a WLan router using DHCP on WinXP, and it is stuck forever in the "acquire network address" step. Why does it misbehave like that? I don't need NetBIOS!

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  • TCP/IP networking working as expected, but can't access Windows Shares

    - by Pablo Santa Cruz
    I am trying to fix a Windows 7 Pro SP1 (32 bits) computer. I have a weird problem. It was working fine until two days ago (didn't do anything weird in that day), and suddenly windows network (accessing to Windows Shares, sharing my printer) stopped working. TCP/IP networks words without issues, since I can IM, use the WebBrowser, check my email, you name it. Any ideas on how could I attempt to fix this?

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  • Please help me with database connection types in Windows.

    - by Hamish Grubijan
    Sorry for a badly-phrased question. I have a requirement coming from a non-technical person that I need to make sense of. I am basically told: "Here use 'Driver={SQL Server};Server=SERVERNAME\INSTANCENAME;Database=DATABASENAME;Uid=UNAME;Pwd=PASSWORD;'; and here use Server=SERVERNAME\INSTANCENAME;Database=DATABASENAME;Uid=UNAME;Pwd=PASSWORD;';. I am getting no additional help here. While this seems to miraculously fix a bug, I want to understand what is it that I am changing, so I can leave a proper comment for the next developer, plus I can structure the code and name variables differently, depending on the meaning of the change. The work revolves around ASP.net, reporting, SQL Server 2008. Please give me some examples about when you would use one connection string over another. Feel free to edit the question if you can see a way to improve it. When can you lose a 'Driver={SQL Server};? Thank you. EDIT: SQL Server 2008 is the target database, but other can be used ... or maybe will be used in the future.

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  • What does this TCP Packet mean ?

    - by asksuperuser
    I'm total newbie at tcp/ip and I was experimenting with Wireshark. What this mean: 1824 578.194204 xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy UDP Source port: 17500 Destination port: 17500 In data I can see that my user pc name is sent (happily it's a generic name): does this mean someone is trying to hack my pc ?

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  • Kernel Log "TCP: Treason uncloaked!"

    - by hurikhan77
    On one linux server (Gentoo hardened), we are experiencing bursts of the following messages in dmesg from time to time: TCP: Treason uncloaked! Peer xx.xx.xxx.xxx:65039/80 shrinks window 4094157295:4094160199. Repaired. Is there anything we should take care of or is this normal? Update: Maybe related, we are using net.ipv4.tcp_congestion_control = cubic. Kernel version is 2.6.28 with Gentoo hardening patches.

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  • Setting Up a Virtual Sound Device To Stream Output via TCP/IP

    - by Martindale
    I'm interested in installing a custom driver / device that will open a socket (or listen) and stream audio via TCP/IP in both Windows and Linux. I would like to be able to specify this device as my "Output" for specific applications so that I can route my audio through a completely unique machine (for example, in complex Synergy setups where my headphones might be connected to one machine, but audio is being generated by another.) In Linux, I expect this to be very easy, but I anticipate having to install a custom driver in Windows.

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  • TCP: Treason uncloaked!

    - by hurikhan77
    On one linux server (Gentoo hardened), we are experiencing bursts of the following messages in dmesg from time to time: TCP: Treason uncloaked! Peer xx.xx.xxx.xxx:65039/80 shrinks window 4094157295:4094160199. Repaired. Is there anything we should take care of or is this normal?

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  • Cannot connect to MySQL server using JSP

    - by Dibya
    I just set foot on JSP. I started writing simple programs to display dates, system info. Then I tried to connect a MySQL database I have a free hosting account, but I am not able to connect to MySQL database. Here is my code: <%@ page import="java.sql.*" %> <%@ page import="java.io.*" %>  <html> <head> <title>Connection with mysql database</title> </head> <body> <h1>Connection status</h1> <% try { String connectionURL = "jdbc:mysql://mysql2.000webhost.com/a3932573_product"; Connection connection = null; Class.forName("com.mysql.jdbc.Driver").newInstance(); connection = DriverManager.getConnection(connectionURL, "a3932573_dibya", "******"); if(!connection.isClosed()) out.println("Successfully connected to " + "MySQL server using TCP/IP..."); connection.close(); }catch(Exception ex){ out.println("Unable to connect to database."); } %> </font> </body> </html> I am getting Message as Connection Status unable to connect to database. I have tested this connection using PHP using the same username, password and database name. Where am I making mistake?

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  • ssh tunnel error : channel 3: open failed: connect failed: Connection refused

    - by soroosh.strife
    I'm trying to access and browse internet through a ssh server so in my laptop (ubuntu 12.04) I do this: ssh -D 9999 root@server-ip then in the network proxy in my laptop I set: HTTP proxy 127.0.0.1 port 9999 but when I try to open a page in my browser it doesn't connect and in my terminal I get errors like these : channel 4: open failed: connect failed: Connection refused channel 3: open failed: connect failed: Connection refused channel 5: open failed: connect failed: Connection refused channel 4: open failed: connect failed: Connection refused channel 6: open failed: connect failed: Connection refused I'm new to this and found this method on the internet so I'm don't know what I'm doing wrong. I'd really appreciate it if anyone can help me make this work.

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