Software :: Time Synchronization With Ntp 3 Mins Delay From Client And Server?
Sep 24, 2010Time synchronization with ntp 3 mins delay from client and server
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Networking :: Agent And Client Synchronization To Run Netperf Tool
Mar 14, 2011I work on Linux Regression testing and I am writing a script to automate(shell scripting) the netperf tool when I need to determine the performance(throughput) of agent and client(individually) and I shall be running a shell script on (lets say) client first. But how to obtain the synchronization between them both as I need to execute a command even in board(agent) side to get the script going.
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Mar 23, 2010what the recommended way to set up real-time (or near real-time) folder synchronization among 2+ servers. I looked a rsync but that doesn't sound real-time and it looks like its something that you might put in a cron once an hour.
View 1 Replies View RelatedUbuntu Networking :: OpenVPN Server And Client At Same Time?
Oct 26, 2010I have an Ubuntu server that is currently running Ubuntu 8.10. I was thinking of making it a VPN server for my iPhone and also for my laptop whenever I'm outside and need to access internet over insecure wireless networks. Now that part should be easy I found several guides on how to configure OpenVPN server, as well as enabling clients on iPhone, and OSX.
However, the things is that my server is currently a OpenVPN client also, I have a paid tunnel set up to bypass my ISP blocking incoming traffic on various ports. Is it possible to keep this setting but still enabling a VPN server? Essentially causing traffic from my external device to go in through my tunnel to the VPN server, and then out through the external VPN provider.
Networking :: See The Server Is Sending Tcp Packet With Date&time, But The Client Ignores It?
Jun 28, 2011we have a minor issue with time synchronization in proprietary equipment.the client needs to synchronize time with server, but not using NTP.it is not very important so doesn't need to be done often.the problem is that it won't synchronize. I can see the server is sending tcp packet with date&time, but the client ignores it.I suspect the problem is in format (manual specifies there are two possible options like MM: DD: YYYY and so on, but server seems to use some other)Is there an easy way to run some program in Linux Debian, to send that simple packet with correct date?
View 4 Replies View RelatedUbuntu :: Change Delay Time On GRUB?
Jun 5, 2010I have GRUB "1.98-1ubuntu6", and while I have been using GRUB, I have always wondered how to change the delay time prior to GRUB booting into the default operating system. I would even like to switch it off, if possible. Thanks for any help you may have, as I can't seem to find mention of it anywhere, and I think a 10-second wait is silly, having been accustomed to adjusting LILO to any delay time I liked.
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Jun 1, 2011I'm trying to shorten the amount of time it takes for keys to repeat themselves after they've been depressed while using the terminal.
I did a search and found this but I don't know how to install it. [URL]
Debian Multimedia :: Shutdown Delay Time - How To Change It
Jan 18, 2015I have Linux debian 7.7.0 i386-amd64 under VBox 4.3.20 and here is the problem:::
When I open the menu from Linux's top-right corner and click SHUT DOWN..., it shows the dialog with choices, and that Linux guest will automatically shutdown after 60 seconds and I need to change that delay value to 3 seconds. Of course I could just re-click Shut Down -button again, but I don't want to do it. Period.
By Googling I found these "instructions" for UBUNTU:
None of this worked on my 13.04 system. In the end I re-compiled gnome-session.
In gsm_shell.c and gsm_logout_dialog.c change #define AUTOMATIC_ACTION_TIMEOUT from 60 to 5
Ubuntu :: Change The Time Delay On Dual Boot?
Oct 19, 2010I know this might sound stupid, but how do I change the time delay for a dual boot?
View 3 Replies View RelatedRed Hat / Fedora :: How To Change Delay Time Before System Start In Grub
Apr 2, 2010I want to install my system on my U-Disk.So I need to delay the time when system starting before the system recognized the U-Disk. How to change it in the grub? If I change it ,how can I save it in order not to change it every time I start the computer? Is it in the /boot/grub/menu.lst?
View 6 Replies View RelatedCentOS 5 :: Error - No Suitable Server For Synchronization
Jan 22, 2010I have started ntpd service with chkconfig ntpd on .When i execute : ntpdate 0.pool.ntp.org , then i get error :
No suitable server for synchronization .
Software :: NTP - No Server Suitable For Synchronization Found?
May 18, 2010i had tried several restrict options and disabling the slackware "no serve to anyone" default. i want the slackware system to host the ntp server for other devices to sync with so im not so hard on the remote ntp servers.
Code:
# Sample /etc/ntp.conf: Configuration file for ntpd.
#
[code]....
Ubuntu Networking :: Setting Time Delay For IPTables (Incoming / Outgoing Port)
Mar 9, 2010I've got a box with 2 interfaces, with IP1 = 192.168.100.1 and IP2 = 10.1.1.1 respectively on them. I've got an iptables rule that looks like:
Code:
iptables -t nat -A POSTROUTING -s 192.168.100.0/24 -d 10.0.0.0/8 -p udp -j SNAT --to-source 10.1.1.1 --random
If I get 2 consecutive packets from the same address and port from 192.168.100.0/24, they get SNAT-ed and come out of the same port on 10.1.1.1. If then I get another packet from the same address and port 10 minutes later, then it gets SNAT-ed, but comes out of a different port on 10.1.1.1. My question is: how can I set the time delay I would like iptables to remember its incoming address/port to outgoing port mappings?
Networking :: NTPD - No Server Suitable For Synchronization Found
Mar 29, 2011I am having a situation with an NTPD server.
Code:
remote refid st t when poll reach delay offset jitter
plesk2.datacent .INIT. 16 u - 64 0 0.000 0.000 0.000
91.198.87.118.b .INIT. 16 u - 64 0 0.000 0.000 0.000
core.fr.zeroloo .INIT. 16 u - 64 0 0.000 0.000 0.000
178-26-105-100- .INIT. 16 u - 64 0 0.000 0.000 0.000
and it remains so no matter how long I wait...
Hoping to get better results with ntpdate, I stopped NTPS and tried :
Code:
# ntpdate ntp.skynet.be
29 Mar 09:12:26 ntpdate[4715]: no server suitable for synchronization found
# ntpdate -ud ntp.skynet.be
29 Mar 09:14:02 ntpdate[4814]: ntpdate 4.2.4p4@1.1520-o Sun Nov 22 16:14:35 UTC 2009 (1)
transmit(195.13.23.5)
receive(195.13.23.5) .....
I am running Debian Lenny 64b, and every packages are totally updated. I have 25 identical servers. And there is just one giving me this problem. From what I see, it is not a connection/FW issue since ntpdate get replies from the ntp server (ntp.skynet.be is my isp's stratum 2 ntp server).
Server :: Ubuntu Based Network Drive Drops Out After 2 Mins With USB Adapter Not For LAN
Mar 10, 2010I have an Ubuntu-based fileserver, which I have set up and works fine for 5 computers (Windows & Linux based). I have one computer, on Windows, which when I map as a network drive it works and I can transfer small files using the USB adapter. However, when copying over a large file, after 2 mins or so it comes up with the error "Specified network name cannot be found". However when plugged in using Ethernet, it will work fine.
What is even stranger is when I set it up as an FTP server rather than SAMBA, it will happily transfer a 4gb file on the USB adapter, which possibly knocks out driver issues (I have tried 2 different drivers, am currently using Linksys one from website - WUSB300N) AND perhaps the issue lies on the Linux server side with setting up the SAMBA server? However I do have another one of these adapters that works fine, but it is on WIN XP HOME with a custom network logon script (as HOME won't remember passwords after restart). BUT it does work on another computer with XP PRO as network place, so I tried network place on this one, and it still doesn't work.......
Software :: CentOS 5.3 VM With Ntpd, No Server Suitable For Synchronization Found?
Jan 8, 2010I cant get ntpd to synchronize with the ntp servers. I have a CentOS 5.3 32 bit Virtual Machine. I'm in USA on Pacific Standard Time. Here's all configuration and other important information for troubleshooting. Is there anything wrong with my config? btw, I used wireshark to look at the UDP packets - I dont get any responses from any of the servers back. I only see requests going out from my server, but no response. Is this a firewall Issue? If it is, then do I need to just enable UDP port 123 on the firewall?
[Code]...
Debian Configuration :: Reboot Both The Server And The Client Machines Every Time Change The SAMBA Configuration?
Apr 5, 2010I am *finally* getting around to rebuilding my file-sharing computer. I'll be sharing files with both Linux and Windoze machines. It's a home network, so there's nothing fancy needed. I know I have to tweak my smb.conf file until I'm satisfied with the features and security. I'm using SWAT and I'm starting with a bare-bones conf file. It's not secure but I can see the server and selected files/directories from my other Linux box.
My really dumb question is, do I have to reboot both the server and the client machines every time I change the SAMBA configuration? I thought I just had to stop and restart the SAMBA service in the SWAT software - but then the server disappears from my client. It looks like I need to reboot both machines for the client to see the server.
Server :: 2 Tier File Synchronization (block Based, Possibly Cluster FS)
Oct 25, 2010I'm looking for a write one, read many file synchronization, file system or similar technique. In fact I want a to imitate a zfs_send/zfs_receive similar behaviour on Linux. My requirements are pure local (or in terms of distributed file systems: rack-aware) file handling with remote synchronization. Some random features/requirements I want to achieve are (I use the terms file and "file system" here interchangeable, as I don't care wheter I have to synchronize file based or use full file system supporting that):
Access on files from a specific host is pure local, i.e. the node has a full copy of a file, no parts are distributed. Read and write access is local, the remote side gets synchronized with write changes only Write changes on the remote side are non-blocking and asynchronous No need for concurrent file access, concurrent, distributed locking and so on Every file is changed by a single node only, other nodes have read access The file "owner", thus the node allowed to write files must be changeable Similar techniques (some as technology concept, not usable for me) exist, among those DRBD, MySQL Replication or even pure rsync.
I don't care whether I'm referring to a pure local solution (i.e. between two block devices) or a client/server mode. DRBD won't fit because its a peer to peer solution, I need to synchronize a lot of clients with a central storage through that way where DRBD just mirrors from peer to peer among two nodes and doesn't allow another node to take over the role of the primary node (i.e. node A is master, storage B secondary, I want to change to a thrid node C which becomes master and receives hence a full update from storage B.
Just as a guess, I'd make a local LVM volume on every node where write access happens. In the same time there exists a iSCSI target with multipath to a remote hosts which is shared with every node, again providing a clustered LVM. So I'd need to synchronize a local LVM volume with a remote LVM image. The question is just by which technique I could achieve that (i.e. as RAID 0, where every read and write goes to one node only and doesn't wait the other node to succeed). I could achieve this with rsync by a cyclic push to the remote host, but the problem is, that rsync isn't block based thus I'd need to synchronize every time the whole file, not only changes.
Server :: LDAP Server Vs Client / Export Server's Home Directory To The Client?
Jun 11, 2011I 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.
Ubuntu Networking :: Ntpdate Domain.local (no Server Suitable For Synchronization Found)
Nov 2, 2010I can't update my ubuntu clock with my server. If i run the command ntpdate domain.local, it gives me this erro (no server suitable for synchronization found) if i run the command nslookup domain.local it works well and found my server
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May 11, 2011After GRUB 2 comes up (I'm running Ubuntu 10.10) and I choose the OS to boot, there is about a 5 second delay where nothing appears to happen after I make the selection -- no disk activity. It happens consistently every time I boot. Again, this is after I choose the OS to boot, so it shouldn't have anything to do with the standard delay to allow me to choose the appropriate OS.Is there a good way to troubleshoot this and determine what is causing the delay?
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Apr 7, 2010I need to set a delay between sending two mails (say 1 second). I have a shared server so delay for specific domain will be more usefull(aaa.com - 2 sec, bb.com 1 sec etc).
View 6 Replies View RelatedDebian :: Server Delay To Execute Commands?
Sep 1, 2010I have debian lenny, when I run an application is slow to load (example: iceweacel open and it takes, I can hold him iceweacel work normally), I tried to change from gnome to another and the same thing, went down some services (samba, squid) and nothing. I open a terminal and it takes, I want to duplicate it and do it fast. From a terminal without X (tty1) with root run mc and moves quickly, also run as root "sudo mc" and takes to boot.Any action done with sudo it takes to run.Can not be what it takes to make starting the applications, not the PC because it is new, and from one moment to another I began to pass this
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Mar 29, 2011the web page will eventually open up or if i hit refresh 2.6.35.11-83.fc14.i686 bind version 9.7.3 i have disabled ipv6. using ie for browser.
[code]....
OpenSUSE Multimedia :: Run More Than One Skype Client At The Same Time?
Mar 14, 2011I am trying to run more than one skype client at the same time.
If I do this by running them all under the same user, it works but has some side-effects that I would rather not have.
If I run them each under a different user, the above side-effects are gone but...
The extra skypes no longer have sound or mic. I thought that ALSA would mux the sound card regardless of user but am I misguided?
Ubuntu :: VPN Client Disappearing Each Time Boot?
Jun 18, 2011I'm currently using Ubuntu on my laptop in my university library, which uses the Cisco Anyconnnect VPN client to connect wirelessly to the network. The software is provided by the university for Linux with installation instructions which I have followed. However, each time I shut down and start up Ubuntu, the installation has disappeared and I need to install it again. I had 11.04 last week and VPN installed and stayed installed there. Only since changed back to 10.04 has this issue appeared.
View 2 Replies View RelatedServer :: Nis Client On Centos Not Working With Suse Server / But Works With Suse Nis Client
Jun 25, 2009I 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 RelatedServer :: Using CentOS 5 For Squid - Delay Pools Settings
Apr 24, 2011I am using centos 5 for squid. I have enabled delay pools in it. The scenario is I have two clients machines have IP address 192.168.1.200 (The Manager) and 192.168.1.201 (Manager Assistant). The issue is I assign 512kbps to the Manager IP address and 128 to his assistant. When either of them download it start from 60 KB/Sec they finally get 11 KB/Sec which is wrong. If I disable the assistant delay pools settings then the Manager get 60KB/Sec continuously. By enabling both squid does not show any error.
Following is my line of code taken from squid.conf
Code:
acl our_512kbps src "/usr/local/squid/etc/our_512kbps"
acl our_128kbps src "/usr/local/squid/etc/our_128kbps"
http_access allow our_512kbps
http_access allow our_128kbps
http_access deny all
#Now Delay Pools
delay_pools 1
delay_class 1 1
delay_parameters 1 65536/65536 #512/8*1024=65536
delay_access 1 allow our_512kbps
delay_access 1 deny all
#Now delay class 2
delay_class 1 2
delay_parameters 1 65536/65536 16384/16384 #128/8*1024=16384
delay_access 1 allow our_128kbps
delay_access 1 deny all
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Mar 14, 2011I would like to ask whether there is a way to postpone or delay message processing on postfix mail server. E.g. to postpone message transfer/relay for 5 minutes to be able to dequeue mis-targeted emails.I couldn't find anything because these keywords mislead to performance problems.
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Aug 17, 2010How do you configure proftpd so that once a user has failed to login and reached the MaxLoginAttempts. That they can not retry logging in for another 4 hours ?
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