Search Results

Search found 30511 results on 1221 pages for 'linux networking'.

Page 265/1221 | < Previous Page | 261 262 263 264 265 266 267 268 269 270 271 272  | Next Page >

  • Very low throughput on 10GbE network

    - by aix
    I have two Linux machines, each equipped with a Solarflare SFN5122F 10GbE NIC. The two NICs are connected together with an SFP+ Direct Attach cable. I am using netperf to measure TCP throughput between the two machines. On one box, I run: netserver and on the other: netperf -t TCP_STREAM -H 192.168.x.x -- -m 32768 I get: MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.x.x (192.168.x.x) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 32768 10.02 1321.34 The measured throughput is 1.3Gb/s. This is 7.5x below the theoretical maximum, and only 30% faster than 1GbE. What steps can I take to troubleshoot this?

    Read the article

  • C/C++-Library for EEPROM wear-leveling under Linux?

    - by Martin C.
    Hi, does anybody know of a library for storing data securely in an 8k-EEPROM, which is attached over the I2C-interface? I am especially interested in wear-leveling as I have a write-intensive application where the EEPROM should/must be used as a NVRAM for often-chaning measurement data. Thanks in advance, Martin

    Read the article

  • Why do I get "Error 6060" when I try to use DBD::Advantage with a 64-bit perl on Linux?

    - by WarheadsSE
    I realize that I am attempting to go beyond the "supported" behavior of the manf's released drivers for Perl, after all they have only released it in package with x86 .so's. However, since I cannot use their package with x64 Perl on a RHEL 5.4 x86_64 box, and maintaining a seperate install of x86 Perl just for this one package, I have made an attempt to get this puppy working thanks to released 64-bit .so's that accompany other driver packages for Advantage. What I have done to this point: download beta 10 DBI drivers, in 32 download beta 10 PHP extension (it contains 32 and x86_64) copy the required DLLs into the ads-lib location (eg /usr/local/ads/lib64) compile the Perl DBI driver with the path to the lib64's .so's Good compilation, good install, good use. The problem is that I always get : failed: [iAnywhere Solutions][Advantage SQL][ASA] Error 6060: Advantage Database Server not available on specified server. axServerConnect (SQL-HY000)(DBD: db_login/SQLConnect err=-1) Does anyone have any ideas? EDIT: fixed package name in post title EDIT: Updated title. It appears that it's not just the x64 perl, but the RHEL 5.4 underneath that may be interfering. As commented below, I managed to shoe-horn a x86 perl onto the system, and compile the DBD::Advantage 9.99, and later replacing that with 9.10, and none of these x86 would connect either. Neither library (9.99 or 9.10) in either bit-edness will connect from this x86_64 server to the windows server's UNC path. I have successfully mounted this share without problems, but still I cannot seem to connect to the 9.1. I have tried: \hostname\PATH \FQDN\PATH \IP\PATH and all of these variations with the port (default) 6262 included. My windows machine connects fine, with both 9.1 and 9.99 from strawberry perl.

    Read the article

  • Why is my eth0 getting a dynamic ip when it is configured to be static?

    - by sdek
    For some reason our office linux box is being assigned an ip address via dhcp and I don't know why. What is confusing to me is that when I check system-config-network it shows that my eth0 is setup to be a static ip address. And /etc/sysconfig/network-scripts/ifcfg-eth0 also shows it is setup to be a static ip, yet it is getting a different ip address than the one specified in the ifcfg-eth0. Let me know if you have any suggestions on or ideas on where I can look next. Here are a few details that might help you figure out what an idiot I am :) Fedora 11 Router in front of this box is running dhcp, starting at 10.42.1.100 This box is configured to be 10.42.1.50 (at least I think it is!), subnet 255.255.255.0 (which is same as the router's lan subnet) Instead of having the static IP, this box is getting assigned 10.42.1.100. Here are the ifcfg-eth0 details DEVICE=eth0 BOOTPROTO=none ONBOOT=yes TYPE=Ethernet USERCTL=no NM_CONTROLLED=no NETMASK=255.255.255.0 IPADDR=10.42.1.50 GATEWAY=10.42.1.1

    Read the article

  • Java: Use jar library's from package manager in Linux.

    - by jonescb
    I'm trying to find the best way to use Java libraries that were installed by the package manager instead of just putting a copy into ${project.root}/lib My distro, Gentoo, has a package for Java libraries like jdbc-postgresql. It's installed to /usr/share/jdbc-postgresql/lib/jdbc-postgresql.jar I assume that this path may be different in Ubuntu, Fedora, or Arch. Is there any way to do like what C does? Where you just add a -lfoo, and the linker would find libfoo.so. I'm using Ant 1.8.0 and Java 1.6.0_19.

    Read the article

  • msi netbook refuses to connect to home wireless network (windows xp)

    - by sa125
    Hi - I'm trying to connect my girlfriend's MSI netbook to the wireless network in my house, and failing repeatedly. It's not a hardware issue, b/c it connects to other networks successfully, and, it's not a network issue, because I have another mac and linux laptops that have no problem detecting and connecting to the same network. When I open windows' network connections box, I can see the network available, and when I try to connect to it (using a password), I get a "network no longer in range.." error (the router is 2 ft away). This has been the case for the past 6 months, and I'm about to give up. I've reset the router, erased all saved network preferences and pretty much all I could think of short of re-installing XP. Any idea what else could be done? thanks.

    Read the article

  • Offline Files (CSC) on Windows RT

    - by Aeyoun
    Windows RT does not have the Offline Files service. The Sync Center is also gone. Can it be enabled somehow? or can anyone recommend a replacement? My options are very limited on Windows 8.1 RT. The only thing it seems Microsoft is offering is something called Work Folders. These are only supported in Windows 8.1. I really want a more generic solution so that I can access files on OS X and Linux (like a samba share).

    Read the article

  • OpenSuSE 11 iscsi target: HFS+ partition not seen by clients

    - by radiopaque
    I have an openSuSE machine as a file server, which has an Areca 1880i inside. It contains several partitions. There is a dm-0 and a dm-1 partition, for example. The partitions are formatted as EFI system partitions, with HFS+ file systems. My opensuse could not read them but the iscsitarget exported them for my Macs. This worked for more than a year. For some reason now, after some network problems which were "solved", my dm-0 partition is not seen anymore! I suspect it is a problem on the iscsi target side, i.e. the OpenSuSE machine. Can anyone suggest what I should look into? Any logs, any settings on the linux machine? None of my macs can access the partition, and they use different client software!! Thanks!

    Read the article

  • A error about "Address 0x0 is not stack'd, malloc'd or (recently) free'd" in c program under linux

    - by MaiTiano
    There is a piece of my program: height = atoi(argv[3]); width = atoi(argv[2]); sprintf(seqName,"%s", argv[1]); // strcpy(seqName, argv[1]); After compiling it, a exe file test is generated, then I use Valgrind to check it. Then I got the following message, however I cannot understand what it tends to tell me. Can anyone provide some kind help, Thanks. 1 contexts (suppressed: 13 from 8) 1 contexts (suppressed: 13 from 8) jl@ubuntu:~/work/dsr_analysis$ valgrind --tool=memcheck --leak-check=yes ./test ==28940== Memcheck, a memory error detector ==28940== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al. ==28940== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for copyright info ==28940== Command: ./test ==28940== ==28940== Invalid read of size 1 ==28940== at 0x40260CA: strcpy (mc_replace_strmem.c:311) ==28940== by 0x804A5C6: main (me_search.c:1428) ==28940== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==28940== ==28940== ==28940== Process terminating with default action of signal 11 (SIGSEGV) ==28940== Access not within mapped region at address 0x0 ==28940== at 0x40260CA: strcpy (mc_replace_strmem.c:311) ==28940== by 0x804A5C6: main (me_search.c:1428) ==28940== If you believe this happened as a result of a stack ==28940== overflow in your program's main thread (unlikely but ==28940== possible), you can try to increase the size of the ==28940== main thread stack using the --main-stacksize= flag. ==28940== The main thread stack size used in this run was 8388608. ==28940== ==28940== HEAP SUMMARY: ==28940== in use at exit: 0 bytes in 0 blocks ==28940== total heap usage: 0 allocs, 0 frees, 0 bytes allocated ==28940== ==28940== All heap blocks were freed -- no leaks are possible ==28940== ==28940== For counts of detected and suppressed errors, rerun with: -v ==28940== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 13 from 8)1 contexts (suppressed: 13 from 8) 1 contexts (suppressed: 13 from 8)

    Read the article

  • Ubuntu Wireless card not found

    - by user32121
    Hello all, I'm trying to setup Ubuntu on an old PC. I ran the following command, lspci, in order to get info on the wireless card installed. 00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88w8335 [Libertas] 802.11b/g Wireless (rev 03) Does anyone know where I can get drivers for this card/chip? And also, how to install (I'm rather new to linux). Also, I'm sure the card is working because I just formatted over xp, and everything was working well. Thanks in advanced!

    Read the article

  • Optimizing wireless router speed and minimizing interference.

    - by Tchalvak
    I've been experiencing problems with my wireless connectivity lately, and want to make sure that it's not related to the abundance of other wireless routers here in my building. So, what I'm looking for is a method (probably via some application or another) to audit the wireless channels (and other factors that might be important that I don't even know of yet) that are floating through the aether around me. Ubuntu or other linux apps are preferred, but some kind of windows/mac solution is possible, since I do have other OSes around me that I could install & test on. Router: netgear WGT624 v3 Hearsay tells me that channels 1, 6, and 11 are "non-overlapping" (I expect they aren't used for non-wireless-router purposes or something, not sure how they couldn't overlap with other routers using other channels), so perhaps my best choices of channel are limited, so if channels aren't really a big concern, I'd be happy to get links to other optimizations that I should look into.

    Read the article

  • Why a different SHA-1 for the same file under windows or linux?

    - by Fabio Vitale
    Why on the same machine computing the SHA-1 hash of the same file produces two completely different SHA-1 hashes in windows and inside a msysgit Git bash? Doesn't the SHA-1 algorithm was intended to produce the same hash for the same file in all OSes? On windows (with HashCheck): File hello.txt 22596363b3de40b06f981fb85d82312e8c0ed511 Inside a msysgit's Git bash windows (same machine, same file): $ git hash-object hello.txt 3b18e512dba79e4c8300dd08aeb37f8e728b8dad

    Read the article

  • Oracle RAC interconnect in a Dell M1000e Blade Enclosure

    - by Antitribu
    We are looking at a Dell M1000e enclosure and appropriate Blades with 4 NICs each. We are planning on running Linux/Oracle 11g RAC on two blades, storage will be handled on an iSCSI SAN for which two NICs (via passthrough) will be connected leaving us with two NICs (via blade centre switches). We would like to have an interconnect (obviously) , an external IP and an internal IP. Would best practice be to: bond the remaining two interfaces and VLAN as appropriate to provide three virtual interfaces? run the interconnect on one interface and VLAN the external/internal interfaces? purchase a blade with more NICs as the above is a terrible idea? Another option? Please feel free to point out the blindingly obvious or to relevant documentation on support.oracle. I am specifically interested in supported configurations and best practices. Thanks!

    Read the article

  • Does anyone know about nagios plugin that uses nmap and does port checking??

    - by Eedoh
    Hi to all. I need to monitor open and closed ports on dozens of hosts. I've found a Nagios plugin that does what I need, but I would have to use this script through nrpe. Some of the hosts are powered by linux and they all have perl installed. But some of them are Windows machines, and it's not convenient for me to install perl on every one of them. That's why I can not use this plugin. I hope that there's Nagios plugin that uses nmap, or something similar, so it could check ports on every host remotely, without installing plugins on remote hosts, only on server.

    Read the article

  • Should I upgrade my LinkSys WRT54GL firmware?

    - by Reid
    I have a LinkSys WRT54GL v1.1 which currently has stock firmware version 4.30.7. I see that version 4.30.14 is available. The router works fine now, and the release notes look uninteresting except for one line in v4.30.9: "Resolves issue with Linux kernel vulnerability". I have remote management turned off. I'm aware of the 3rd-party firmwares but the stock firmware works fine for me at the moment, so I don't have an interest in those. Is the status quo fine or should I upgrade the firmware? (It's a bit of a pain since the config has to be saved and reloaded, and obviously any mucking with firmware is risky.)

    Read the article

  • Vista laptop won't connect to airport extreme

    - by Hutch
    Our previous router died, and to replace it I procured an apple airport extreme. My mac, my wrt54gs (with ddwrt acting as a bridge) and a linux machine have had no problem connecting to the wireless. None of the wired clients are having a problem obviously. The problem is one of my roommates can not connect. That's not strictly true. He can connect to the network, and will, infact, get a dhcp lease. However he cannot get any packets out. Can't ping the router, can't access any web sites, nothing. However he's fine if we switch to an unsecured network. Which is obviously not acceptable. The airport only allows for 'wpa/wpa2 personal' and 'wpa2 personal' (and of course the enterprise versions there of) I keep reading about this problem in multiple spots on the web, but never see any actual answers... Anyway the laptop: hp/compaq cq50-215nr vista home premium wireess card: atheros 5007 airport is simultaneos dualband II

    Read the article

  • mystery Internet traffic to port 445

    - by Ben Collver
    Recently, I noticed traffic from the office network to TCP port 445 on the Internet [a]. Below are the Linux firewall log entries to Facebook's network [b] and Google's network [c]. I would like to identify the source of this traffic. My first guess is that Facebook and Google might be using multiple TCP ports for SSL load balancing. However, I could not confirm this based on the web proxy logs. What else might it be? [a] http://support.microsoft.com/kb/204279 [b] Sep 4 08:30:03 firewall01 kernel: IN=eth0 OUT=eth2 SRC=10.0.0.131 DST=69.171.237.34 LEN=52 TOS=0x00 PREC=0x00 TTL=127 ID=14287 DF PROTO=TCP SPT=51711 DPT=445 WINDOW=8192 RES=0x00 SYN URGP=0 [c] Aug 28 06:02:41 firewall01 kernel: IN=eth0 OUT=eth2 SRC=10.0.0.115 DST=173.194.33.47 LEN=52 TOS=0x00 PREC=0x00 TTL=127 ID=4558 DF PROTO=TCP SPT=49294 DPT=445 WINDOW=8192 RES=0x00 SYN URGP=0

    Read the article

  • emulator networking

    - by klaus-vlad
    Hi From my android code I try with the android browser to access a tomcat service running on my computer like this : Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://localhost:8080/615734.apk")); startActivity(myIntent); Unfortunately all I get is "page unavailable" . What should I do to be able to have this running ?

    Read the article

  • Beam display from any computer to shared display

    - by rcourtna
    There are probably a lot of ways to skin this cat. Looking for the cleanest. In our office, we have a large display in a common area. We want to allow any computer in our office (mac, linux, windows) to output its video on the large display. Since some of the computers in the office are stationary, and it's not practical to run video cables everywhere, it would be preferable to make this all happen through the network. It is also possible for us to connect a dedicated (& networked) PC to the large display. How can I do this?

    Read the article

  • Combine multiple DNS filtering result

    - by Martheen Cahya Paulo
    Several DNS servers provide filtering against different categories, mostly for the local government 'undesirable content', some for malware, and some for ads. What I want is to create/use a DNS server that compare against those filtering DNS servers and only provide the address if all the DNS server agrees. For example if DNS server G provide a clean, unfiltered result, DNS server N provide malware and/or pornography filter, and DNS server F provide ad filter, then G, N and F will only provide the same/similar answer if the query is not categorized as malware, pornography, or advertising. Thus, by creating a server M that only answer if all DNS server agree, M effectively filter against all those categories. Maybe it's possible to do this on DDWRT or Tomato, but if not, I would settle for a solution that can be run in Linux/Windows.

    Read the article

  • Wireless router not connection -> AP Not associated

    - by candido
    I can not connect to internet by wireless router after some months with ubuntu 10.04. I can connect with the same portable but with win OS. My SO is ubuntu 10.04 linux 2.6.32-41 arch SMP i686. The internet wireless network controller is Atheros AR9285 chipset (pci express) Kernel module ath9k I have tried a command line connection: $ sudo /etc/init.d/network-manager stop #stop gui network manager $ iwconfig wlan0 essid WLAN_3C key s:C001D20550B3C $ ifconfig Access Point: NOT-ASSOCIATED $dmesg ... AP 00:1a:2b:08:60:49 associated Is the SO has connected to router for booting long ( associated message), after boot and login why the connection to router is not possible by network-manager or command line (NOT associated message)? Thanks in advance

    Read the article

  • social networking website database management

    - by Anup Prakash
    This could be very basic type of question for you! But for me it is very important. 1) How these(orkut, facebook or other) website store the images in server? Options: a) Keeping all the images in database by converting into bytecode/binary. b) Making a new folder for each user and saving photographs according to their library name. c) Or something else which i(Anup) didn't guess yet. Please reply me. Sayiing thanx to see my question and any many many thanx for answering my question.

    Read the article

  • Linux periodically "losing" ability to connect to server via SSH?

    - by gct
    I know this isn't exactly a programming question, but it popped up in my use of git for programming projects at least. I've got a web server that I use to host my git repos on, but my ubuntu box seems to "lose" the ability to connect to it via SSH. I'll get a "connection refused" error when I try to ssh or use git. Rebooting my local machine will fix the problem, but only temporarily. I can still connect to the web interface just fine, and the problem manifests with other servers as well. I've been working around it by pulling my changes over to my laptop and pushing from there, but that's sub-optimal as you can imagine. Has anyone seen something like this? I'd be tempted to say it's some kind of IP caching problem, but I can't connect even using the IP address of the server directly... Running Ubuntu 9.04

    Read the article

< Previous Page | 261 262 263 264 265 266 267 268 269 270 271 272  | Next Page >