I have an NFS client that loses connectivity with an NFS volume about once a week. The NFS client has several other volumes mounted to the same NFS server but this is the only volume that appears to have problems. It is mounted with these options: intr,rw,rsize=8192,wsize=8192
Before I start messing with the timeout options, what else could I look at to troubleshoot this?
Wife's laptop has AR5001 Wireless Adapter laptop model is Toshiba Satellite A215
Problem : Wireless networking randomly loses connectivity and can not regain connectivity, the only apparent solution is a full power down , this is not even certain to work. The card works under Windows, she hates Windows. (I love her for this) I know it's not faulty hardware , because it will work for days on end under Windows without problems.
Things I've tried : madwifi drivers (any and all versions available) : These increase stability of the signal and seem to delay the inevitable however it still happens. When using these drivers the only option is to unload them modprobe -r then reboot then remove them again and re add them. It makes no sense why this works, and if I don't remove them prior to rebooting it will not work.
ATH5K drivers : These are pretty much junk, results are unpredictable at best, sometimes it will work perfectly for a few hours, sometimes it will not work at all. Nothing is repeatable, I can't seem to force whatever condition is causing this. rfkill does not show the wifi being blocked (hard or soft), unblocking it anyway does nothing, only way to make this work and it's iffy is to fully power down wait 5-10 minutes turn it back on and it MAY decide to work.
Firmware update : Updated the Toshiba BIOS to the latest version of the firmware 2.0 no joy here either. Same issue both sets of drivers.
Tried different distros and kernels : I've tried Mint 9, 10 ,11 ; Ubuntu 10.10, 10.04 , 9.10 and 11.04 (which is currently installed) , Fedora and OpenSUSE. All are giving the same problems. I have also tried a slew of different kernels no joy from any of them (I'm not at the computer with the issue now I will post exactly what kernel versions I've used when I have access to the machine).
Another useful bit of information, the hard switch to disable/enable wifi WILL disable it but turning it back on does absolutely nothing. The hotkey does nothing at all. The bios does not have an option to disable or enable the wireless card.
I will also post the typical lsmod , lspci , iwconfig all that good stuff when I get back to the computer in question. I'm probably just going to buy a PC card for it and give up on that one, but this is driving me insane and I would really like to see it resolved even if I do replace the hardware.
I used to play with gw6c ( a client for tunnel broker ) It works well with fedora9 , fedora 10, but not with leonidas. my rpm is gw6c-6.0-0.4.beta4.fc9.i386.rpm ( a little old!) when I tried to install i have got this: libcrypto.so.7 est ncessaire pou w6c-6.0-0.4.beta4.fc9.i386 I try to make a soft link to libcrypto.so.0.9.8k, but nothing; The question :-Is there a solution for that pb - did you know a better client for non native ipv6 connectivity?
View 2 Replies View RelatedI configured openLdap in RHEL5 on virtual achines,everything is working fine, I created a user called ldapuser,in LDAP server and i created a home directory for ldapuser in my LDAP client, now i can able to login to the both Server and client with ldapuser account....
Now here what am expecting is i want to export my server's home directory to the client, i dont want to create home directories manually in the client machine, i googled about that, and it can be done through autofs.....
what need to be done on the client and server side.
I've run into a strange problem on one of the servers I maintain. It's running CentOS 5, fully up to date. The server has Monit installed via RPMforge, and runs Postfix as its MTA. Every day at about 4:20am, when cron is running, Monit loses its connection to Postfix. As far as I can tell, nothing is actually going wrong with Postfix and it's always restarted just fine. I run a couple of Debian servers with very similar setups, and the problem does not occur on them.
Perhaps related, other daemons on the CentOS box often lose their pid files at the time when cron runs, which results in Monit thinking they're not running. One service in particular (zarafa-dagent) is so bad for this that I've had to completely disable monitoring of it in Monit. Again, this problem doesn't occur on the Debian boxes I maintain.The problem isn't hugely urgent as everything still runs fine, but it does mean that pretty much every day I get false positive mail alerts from Monit, which is (a) annoying and (b) makes me more likely to miss a real alert.
I am currently using an M-Audio 7.1 PCI sound card on a headless non-GUI Centos5.5 install. MPD is running in the background for jukebox usage. The problem is, I seem to be at 100% volume output on the jukebox and I can't figure out how to change volume. Using alsaunmute to set volume sets some kind of volume on the soundcard, from what I can tell, but it's like that new volume setting is not being respected by ALSA. I can also set the volume using 'alsamixer' which also produces no noticable effect (100% is the same as 0%, as loud as could be from the PC).
I'm using the digital coax output from the soundcard for this - not the 3.5mm jack (due to stereo reasons beyond my control). Perhaps I'm not modifying the master volume? Thing is, when modify volume settings via an MPD client, such as Minion or one on my phone,�the volume setting does change in the ALSA software, but there's no audible difference. It makes me think alsa is not being used for sound control, but I'm stumped as to how to check otherwise. At least sound plays!
I have a 11.3 machine as a print server sharing out a printer Then I have two clients using that printer. One 11.3 and one 11.4 6 of 6. When I print from LibreOffice on either machines every other print job disappears. I'm a bit puzzled ! It's not random it's exactly every other that doesn't show up at the server. It's not in the server job log.
View 5 Replies View Relatedwe have deployed linux Santos 5.4 server and window 2003 server. we are able to ping window server from linux but not linux server from window. all are in same network.
View 1 Replies View RelatedI have a host on ubuntu and I think I would like to virtualize my web-server. So, to be more clear I have for instance the ip 92.124.74.8 to the main server (where virtualbox will be installed). After I will install the web-server into virtualbox it will have the address 196.168.1.10
So, how can I specify on the main server 92.124.74.8 that all the requests on port 80 to be transfered on 196.168.1.10 (virtual machine). The problem is that on 92.124.74.8 I don't have access to the router/switch. Is there a possibility to make this forward from the main machine 92.124.74.8?
Every time I reboot my server, it no longer connects to the internet. It is dual-homed with an internal and an external interface. Both come up. The internal connection works fine. Nothing happens on the external interface. Ifconfig shows that both interfaces are setup correctly. My iptables settings are properly restored. Forwarding is automatically enabled. For some reason packets do not go anywhere on the external interface. This has been true ever since the upgrade to jaunty I think (now running lucid).
Once I restart the external interface it works perfectly (eg ifdown eth1; ifup eth1 or /etc/init.d/networking restart). The problem only occurs after a reboot and only occurs on the external interface.
Here's my /etc/network/interfaces file:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
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Basically, I wanted to use the Bootp (PXE) protocol to boot a machine (my laptop) from my network instead of using USB/DVD boot medias to reinstall if need be. My router being a piece of crap, I couldn't setup the DHCP server to allow PXE packets. Confirmed from the manufacturer that it is not possible. Well for a $140 router, you would expect the opposite. Anyways, here I am with a small machine setup with Slack, no desktop environment (only CLI) and connected to my router (which I deactivated the DHCP) so the machine can act as a DHCP server. It works very well. However, I would like to install a few other utilities into that machine and for them to work, I need to put the machine between my cable modem and my router. Basically, here's the topology from outside):
Internet (ISP) --> Modem --> DHCP machine --> Router (no DHCP - acting as a switch) --> computers & printers
The problem is that I cannot connect to the modem from the computers on the network. Also I cannot access the internet (go on the WAN side) from the computers. From the computers (namely my laptop), I can ping the router, but cannot ping the interface where DHCP broadcast. Also I cannot ping the modem. From the router (using the web config page), I can ping the DHCP broadcast. From the DHCP machine, I can ping the modem. In the DHCP server, I setup the eth0 (the interface where the modem connect to) as a DHCP assigned IP so it can obtain the IP from the modem. The eth1 (the interface where DHCP broadcast) is static. All my machines obtains a IP from the DHCP machine without a hiccup.
I have a Nis server on Suse 11 which is configured using Yast and nis clients on Suse and CentOs .All clients which is on the Suse Os is working fine. But on CentOs , users couldn't login using nis username.I have mounted home directory using nfs in fstab . I can switch to nis users homedirectory only when i am root. But nis users could'nt login on reboot.' ypcat passwd username ' is showing the output . No selinux is enabled in the client .Is there is any problem with Suse server to Centos Client in nis ??
View 2 Replies View RelatedI have Ubuntu 10.04 x86 installed, trying to get teamspeak 3 beta30.I have followed this guide: http://robert.penz.name/296/howto-in...u-10-04-lucid/
And can not get my network setup correctly to allow people to connect externally from my LAN. I have forwarded every relevant port I could find to the computer hosting TS, I forwarded them first as their respective protocols, and then as the combined UDP/TCP. I tried Forwarding single port numbers, and then port ranges.I have also tried uninstalling selinux.I have tried connecting directly to my cable modem with the server.I had this working perfectly three months ago with all the same software, using the same guide I listed above.The only thing I can imagine has changed is my operating system itself with system updates.
My network looks like:
Comcast cable modem--->Netgear WNR3500L Router----->Ubuntu 10.04 x86 desktop edition
what else I could possibly check? I can connect to and manage the TS server fine using localhost:9987 or 192.168.1.x:9987, it just wont allow any connections from outside the network.
I have a Toshiba Satellite L305-SP6944C, Pentium Dual Core 2.16, 2GB RAM, 160GB hard drive, DVD-RAM UJ880AS, display 15.6 TFT widescreen, ethernet Realtek RTL8101E/RTL8102E PCI Express, WLAN Realtek RLT8187, Opensuse 11.2 and KDE 4.3.1. Installation was OK and finally the wireless card is working... but I don't have conectivity bacause in the browser (Firefox) appears a message saying "the server can't be found"
I follow the howto write by Swerdna. With ndiswrapper I install the XP driver for RLT8187, KnetworkManager is in charge of connections showing both eth0 and wlan0, the wireless sign of router Dlink DIR-280 is OK, in the dialog box of network connection I put the mac address of the wlan card but I think that is not the problem.
Other thing that I missed is that I don't find boot.ini at any directory to add modprobe ndiswrapper in the boot sequence, in etc/init.d/ appears a "boot" file, is this file that I have to change to modprobe ndiswrapper??
I have installed nfs-kernel-server on the server and nfs-common on the client. Assumeserver 192.168.1.1client 192.168.1.3
content of /etc/exports is:
/home 192.168.1.0/255.255.255.0(rw,sync,no_root_squash)
/home/nfsroot 192.168.1.0/255.255.255.0(rw,no_subtree_check,async,no_root_squash)
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I have a small home-office network. On that network I have two linux computers, one is a client the other a server.
On the server I have NFS Server setup and mount some NFS exports on the client computer.
On the server I have the firewall on and here it becomes a little tricky.
Since both the server and the client connect to the router the interface (eth1) is theoretically both an internal & external zone.
The router is commercial grade and therefore has a good firewall on it which is also setup. Therefore the firewall on the server is really more of a backup than a necessity. But that's fine, and by having the server's firewall on 'fail2ban' is able to work which I like to have working so I don't want to just turn off the server firewall even though I have good security from the router.
However, when I turn on the server's firewall, the client computer cannot see the NFS server when scanning for server -- done by: clicking on "Choose" next to "NFS Server Hostname" when adding an NFS share in the NFS Client in YaST. Clearly something is being blocked even though I have both "NFS Client" and "NFS Server Service" allowed in the server firewall. The Firewall config. files for these are below.
The Firewall configuration is pretty much "out of the box". That is I have the services I need opened up for the external zone, the other zones are left at their default which means the internal zone, although not used (i.e.: attached to any interface), is completely open.
The perfect solution I guess would be to setup my client computer to connect through a different NIC (perhaps eth0), make that the "Internal Zone" and therefore allow all traffic through to it while still blocking the server from the external zone. However, I cannot make that physical change to my network for now so I am looking for an in between (non-perfect) solution.
In this case I am guessing that means opening up extra NFS ports to the external zone so I have full NFS functionality. I don't mind this because like I said, the router firewall is the main line of defense anyway.
So, given all of the above could someone tell me what I would need to additionally open up in the server firewall to make the NFS server detection work on the client while the firewall was on. Or, if you have a cleverer/better solution without me changing my physical network that would be great.
Hopefully I have written this in enough detail and clearly enough so that all the parameters are clear but if not, feel free to ask me what you like and I'll try to make it clear.
Code:
## Description: Firewall Configuration for NFS kernel server.
#
# Only the variables TCP, UDP, RPC, IP and BROADCAST are allowed.
# More may be supported in the future.
code....
My desktop is running 'buntu 9.10 and I have recently aquired a couple of half decent servers running Windows server 2003. I have a few windows app's that I use regularly for work that I have had limited success in running with wine or in vm's. I stumbled upon a how to to call apps in a vm to run seamlessly on the host desktop and did some playing and have succeeded in calling app's on my servers from my 'buntu desktop, the command I have set in my launcher for one of them (DIALux)
My question is, can I change the default application/file association in 'buntu with a custom command so I can double click on a file and have it open in one of these remote app's??If I can, what is the correct custom command to be using as using the above doesn't work at all, it just tries to open the file with rdesktop not the remote app.
I have a CentOS + Samba server and Windows XP client machines. Users, passwords and permissions are entered on the server machine.users and passwords ( same as on the server ) are entered in the XP client machine.When attempting to access a public file on the server using a XP client machine and the IP address of my server, I am asked a user name and password and none of the already entered seem to work. I cannot access the server file (prompted again and again to enter user name and password). What did i miss
View 7 Replies View RelatedI'm trying hard to run an openvpn server on a openvz VPS, the problem is packets sent from openvpn server process, doesnt reach the client, so connection is never stablished (I run tcpdump on server and wireshark on client to carefully investigate whats wrong), the first guess is that a kind of firewall is blocking traffic (I tried connecting to server through different ISP's but it's possible the national network provider applied some filtering but it cant be on IP,src port or dst port as I'd tried different configuration.
what about deep packet inspection technics, is it possible to block my traffic?) but at exactly the same time I can transmit UDP packets using netcat from server to the guest. there is no firewall enabled in between, I had tried, tcp and udp, tried both open vpn and openvpnAS and tried any thing one can imagine! the VPN is configured as a routed (TUN) type on debian
Just installed openldap server on a VM CentOS called 'ldapsrv', it works fine, ldapsearch returns all ldap information.
Installed openldap client on another VM CentOS called 'ldapclient1', configured it with most basic configuration, no ssl/tls etc. but ldapsearch returns error:
ldapsrv is pingable:
Some outputs:
PHP Code:
PHP Code:
I love Ubuntu and last night I wiped crappy windows 7 off my laptop and installed and customised a beautiful Ubuntu 9 OS ( I tried the new 10.04 first but it had some issues for me ). Now, up here at work we got a Domain Controller that is running windows server 2008, I need to be able to RDP into it and mess with it, I tried to use the Terminal Server Client that comes with Ubuntu, and I can see the login screen just fine, but when I try to log in it says incorrect password and wont go through.
Just to make sure it was not my account that was the issue, I went to my boss and used his computer (a MAC running OSX) and I was able to get into the same server with the same credentials, so it has something to do with my computer not my account. Do any of you have any ideas on what the problem could be?
I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
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then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
i tried to connecting from a windows7 client to a linux server through vnc server.But its very slow , is there any alternative for vnc . i heard that samba can be used as a remote desktop tool if its true please reply with configuration details.
View 2 Replies View RelatedI actually have a server and a client.The client must connect to the server (via internet) to access to external websites. (You can see the attachment, maybe it's more clear )My actual problem is, I have configure Squid on my server, but I want to force SSL for the connection between the client and the server.I didn't really find nice tutorials about on that, maybe someone have an idea ? Or maybe some indications ?
View 1 Replies View RelatedIn a newly installed Linux machine which is a client machine, is not listening to NIS domain server even after setting IP address ,default gateway,and subnet mask.What are all the changes to be done in configuration file.And how can be solved
View 2 Replies View RelatedI have one Windows-XP on Machin 1 and one Linux on Machine 2.
I want make Linux machine as CVS server and Windows Xp as CVS client.
How to setup CVS Server in Fedora-11 machine and CVS client in Windows Xp?
Photo : http://img27.imageshack.us/img27/5864/cvsserver.gif
I'm running Fedora 9, and I've just started getting a problem (it was working the other day), where if I type
sudo su -
then any program which uses X gives an error about not being able to open the display.
For instance:
# gnome-terminal
No protocol specified
cannot open display: Run 'gnome-terminal --help' to see a full list of available command line options.
I've checked the value of $DISPLAY, and it's :0.0, (which is what it should be, and what my non-root user has as $DISPLAY).
I've also noticed, I can "ssh -Y" from my non-user account into root@localhost, and the display works!
I install and update Opera using this method:
[URL]
Works great. I am notified of updates and everything.
Problem is that lately when I run an update to Opera the key is deleted from Software Sources. This happens on several systems (10.04 and 9.10 at least) and happens each time I update Opera.
I install the key again, of course, and the next update deletes the key.
I am Amit, working with IGate. I am able to configure NIS server and client,but after configuring server and client,when I add a new user to server and client and when I login througy new user from client, It shows error "user cannot found".I added a new user to NIS server make entry of user to client pc in /etc/auto.master file and restarted the services bind,nfs,autofs,portmap on server also restarted the serveces on client bind,autofs,portmap then alon I cannot login by new user on client matchine. Please tell me what is cause and how to resolve it.I shared server's /home dir and on client pc automounted the server's /home dir by making entries in /etc/auto.misc file on client pc.
View 7 Replies View RelatedI have configureed Bind in a Linux box. Well pc1 i.e "pc1.mydomain.com" is my client machine and main server is the computer in which bind is install.The client computer pc1 and the main server (Bind server) i.e FQDN "mainserver.mydomain.com "are on the same network.from client machine i can't resolve the name to IP address as my server do successfully with client. The /etc/resolv.conf file in my bind server is as
Code:
search mydomain.com
nameserver 192.168.1.254
The named.config it main configuration is as below
Code:
zone "mydomain.com" IN {
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