I 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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We have a Linux system serving as a storage. As it is running out of free space be bought a new server which should replace the old one. We would like the outage during the migration to be as short as possible. The plan is as follows (actually very similar to XEN live migration):
1. Copy the data to the new storage
2. Stop access to the old storage
3. Synchronization of data
4. Set the new storage as the primary one.
I was thinking of rsync, but the first phase (building file list) takes extremely long, because there are millions of files. Is there any other tool which whould be more suitable for it?
I need a good bi-directional sync. tool like unison, that would work properly over ssh and allow manual decisions and merging if both sides (local&remote) contain changes. unison meets most of my needs, the only drawback is the compatibility - it needs to be installed on both sides, and with the same version. Nowadays it's a bit of a problem, if you have say OS11.3 on one node, SL3 on the other and a MacOS on the third. In my view one only needs the ssh connection, all the rest of the file analysis should be done by the local software. Anyone knows such a tool?
View 3 Replies View RelatedTime synchronization with ntp 3 mins delay from client and server
View 4 Replies View RelatedI have installed MySQL server via Synaptic Package Manager successfully and I also installed MySQl administrator to check for MySQL installation. It is all there. And I ran this also, where "mysql" is a client tool:
hpng@hpng-laptop:~$ sudo mysql
[sudo] password for hpng:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
I entered my ubuntu user password, and I get access error. I have 10.04 LTS version.
I 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).
This worked fine in 9.04, but doesn't in 9.10 (fresh install).
If I tell my ssh-agent about a private encrypted key via "ssh-add .ssh/mykey" then everything works fine.
But if I log out and then log back in it's not there and there is no Gnome prompt to ask for the password to decrypt. So I have to do an "ssh-add" everytime I log in.
I 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
View 3 Replies View Relatedhow an agent itself generate trap on some particular situation arises
View 1 Replies View RelatedCan't connect to master agent: netstat -an | grep master gives me unix 2 [ ACC ] STREAM LISTENING 451121 /var/agentx/masterand if I run snmpd -f -Le -Dagentx I get:
agentx_register_app_config_handler: registering .conf token for "agentxsocket"
agentx/subagent: init_subagent sess 08052880
agentx_register_app_config_handler: registering .conf token for "agentxsocket"
[code]....
I have to fetch the information present in MIB of network agent.. i dont how to strat my program. pls text one sample program.
View 3 Replies View Relatedtrying to create a "local network" by directly connecting an IBM Thinkpad with Debian Linux installed on it to an Alix computer running Voyager Linux. I'm following a "how to" I found to create a music server, hence the requirement. My issue is I can't get a static IP address to be configured on the Debian machine.I've trawled the net and have found the instructions about editing the /etc/network/interfaces and have tried to do this. First I tried to get DHCP working so I could connect the Debian machine to the net and this proved successful. I edited the interfaces file to look as follows:
# The loopback network interface
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
Then I tried adding a static IP address to the machine. As this is a network purely between two machines I made up the IP addres and used 192.168.0.1 and used a NetMask calculator to give me a NetMask of 255.255.255.254 (I told the calculator there would be 2 machines on the network). I then edited the interfaces file as follows:
# The loopback network interface
auto lo
iface lo inet loopback
[code]....
I re-booted the machine (ifdown eth0 followed by ifup eth0 keeps saying that eth0 hasn't been configured - a problem there that I don't understand), but during boot up time it failed to assign the Static IP address to eth0 and made me go into SU mode. To fix it I simply replaced the interface file with the static IP inputs with the file that had the DHCP entries (I'd made a copy of the DHCP file), and re-started the machine. Everthing came up fine. So the first question is how do I get a static IP address to be assigned to eth0 such that whenever I shut down and restart the machine the static IP address is always loaded?
The second question is around creating the network via the cross over cable. From what I've found via Google, all I should have to do is create a static IP address on the Debian machine and a static IP address on the Voyager machine. Once they're connected by the cross over cable they should see each other. Is that correct, or do I have to do anything else?
I have the following problem:I have to networks in remote places.I have an opnvpn client in one network that connects to the the router (openvpn server).My question is,can i connect the network where the openvpn client is,throught the computer with the client to the other network.If yes,how? (please make it an idiot proof anwser because i have limited knowledge about iptables). I was thinking like forwarding (the router in the network with the openvpn client is also firewalling with iptables) the request of the ip class of the openvpn network to the computer with the client,which masquarades the interface
View 2 Replies View RelatedI'm looking for a tool for Debian Linux that can measure the synchronisation performance between two desktops.
I'm using RADClock instead of the NTP client to synchronise my desktops.
I use Thunderbird in MS Windows and it synchronises with Hotmail.
The standard Ununtu mail programme does not appear to do so.
Have tried without success to download Linux Thunderbird.
I 've searched for on a lot of threads and google results, I found no response. Does someone know a solution to synchronize calendar and contacts between a smartphone nokia ( particularly N97 one) and thunderbird with lightning or sunderbird plugins on fedora ( release 11 for me) please?
View 2 Replies View RelatedI'm running a Windows 7 guest using Virtual Machine Manager to launch my "console" to the VM. I believe it uses VNC to connect to the console. I'd like to have clipboard synchronization so I can copy from the host and paste to the guest.
View 1 Replies View RelatedI 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 .
I have two 1TB hard drives, one in my Linux server (running Debian, but I thought I'd ask here anyway) and one in my Windows desktop.
What I would like is a file synchronization program that will automatically (or scheduled via cron) synchronize my hard drive on Linux with my hard drive on Windows via Samba.
My phone is dead or dying so now is a good time to look for a FOSS replacement for Nokia PC Suite and Outlook -- the only reason I run Windows.
Is there any solution (or combination of solutions) that supports synchronising personal information manager (PIM) data -- most importantly names and phone numbers, calendar/schedule and notes -- with any model of cell phone?
EDIT:
SyncEvolution looks promising and there are reports of it working at least adequately with several phones including the interesting for Linux people Nokia N900 but OS-wise it only claims compatibility with ubuntus and debian 4.0, not beloved Slackware; maybe that's more because of what people have tried than because it doesn't work. As the name suggests it works only with Evolution, perhaps not the first choice of email client and PIM.
i 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]....
I have two processes that share a piece of memory, and i want to use the shared memory to send data from one process to the other. it's like a simple consumer-producer problem. when the producer fills the shared memory, it waits until the consumer can consume some data in the memory; the consumer needs to wait if there is no data in the memory. The thing gets complicated when both threads are allowed to sleep and wait for the other to wake it up.
i wanted to use condition variable of pthread for synchronization, but it doesn't work in multiple processes. i tried semaphore, but it's quite complicated and i still cannot make it right. I believe it's a common problem and someone should have written similar code before, or maybe the code is even wrapped in a library, but when I search for it on Internet, I only found information about how to share memory between processes. Does anyone know where I can find this kind of code or library?
I'd like to get the 13.0 "synchronized to <time server>, stratum <stratum>" messages back on 13.1.
- On 13.0, running ntpd 4.2.4p8, reassuring messages appeared in /var/log/messages like "synchronized to 211.233.84.186, stratum 2".
- On 13.1, running ntpd 4.2.6p1, there are no messages in /var/log/messages to confirm that time is being synchronised.
rc.ntpd on both starts ntpd with the same options. /etc/ntp.conf is identical on both, a "get it working and then make it secure" version:
Code:
cat /etc/ntp.conf | grep -E -v '^$|^#' cat /etc/ntp.conf | grep -E -v '^$|^#'
server in.pool.ntp.org
server asia.pool.ntp.org
server 127.127.1.0
fudge 127.127.1.0 stratum 10
driftfile /etc/ntp/drift
According to Linux Home Networking, synchronization can be checked using ntpq -p. This shows synchronization is working. I would prefer to see that confirmation in /var/log/messages without having to run a command manually to check it. How to get the old messages back?
I'm having difficulties with ntpd on my CentOS 5.6 install.
It all starts well; the server connects and synchronizes with a couple of public ntp servers:
[root@toro ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
+ntp.networking4 193.67.79.202 2 u 1 64 377 35.652 47.102 12.349
*deepthought.doc 131.188.3.223 2 u 2 64 377 29.010 44.358 11.585
[Code]....
I would like a seamless way of having personal files encrypted (at this point I am only worried about the home directory) and synchronize these files between different computers and with an external hd.
So far my partial solution is:
1) Default Ubuntu eCryptfs solution;
2) Unison to synchronize between the upper layers of both computers via ssh (operating on the /home/$USER mounted by ecryptfs) and also between one computer and the external HD;
3) Don't know about the external hd.
Reasons:
- I don't want any pain about data loss or data leak if my hardware gets stolen;
- Data in /tmp, /var and swap are not that important for me right now;
- It is very important to synchronize fast, incrementally and properly: propagating deletions rather than reverting and detecting change-change/change-delete conflicts before miss-propagating changes, which as far as I know only Unison is good at;
- Even if I could set the same passphrase on both computers (I guess I can, but Ubuntu does not offer me to choose the ecryptfs passphrase) I want to see the true filenames that are being synchronized;
- If possible I would like to simplify the whole scheme so that each computer is doing its own job seamlessly, and operating on the upper decrypted layer looks simple and robust;
- I would like a more general and easy-to-use scheme for the external device, so other folks use it too;
- If possible I would like ext4 backups, so it remembers file permissions etc... however it would be nice to be able to open it from Windows.
Are (1) and (2) above really good solutions or am I missing something? What are the best solutions for (3)? So far I have seen cryptsetup/palimpset and truecrypt. The more native and floss the better, but being crossplatform is nice. What are the pros and cons, and what's their relation to FreeOTFE and other Windows tools?
I've been running Kubuntu (up to 10.10 now) and also OpenSuSE. I have a Palm Pilot that I want to synchronize to the KDE databases for kontact, kaddressbook, korganizer, etc. Until my upgrade to KDE 4.5.4 I was able to use kpilot, but kpilot is no longer being maintained and has been dropped altogether from KDE 4.5.4. So I've been stranded. It seems that both kpilot and jpilot are quite ancient, not having been materially updated for ten years.
One suggestion I've heard is to replace my Palm with an iPhone, but that's not a path I want to take. The iPhone has capabilities (telephony for one) that I don't need but would be paying dearly for. Not only is the iPhone far more expensive than the Palm; it entails that horrendous and extortionate two-year contract with AT&T.
How I can sync my Palm to the KDE databases? One possibility is some combination of akonadi and OpenSync, but there doesn't seem to be support for that yet, let alone a clear explanation as to how to get that combination to work.
I am working with a C++ program consisting of two threads. The first threads receives packets through an UDP unicast connection and stores them in a buffer. The second thread reads the packets from the buffer and sends them through an UDP multicast connection. Both use blocking sockets and share a common buffer and a linked list L1, which are protected by mutexes. The program seemed to work just fine, receiving a packet and sending it almost immediately, but started giving some trouble recently. The synchronization between both thread started failing, and I decided to use a non-blocking socket in the sending thread. As a consequence, sendto() doesn't work in some cases, causing an errno 11 (Resource unavailable).
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does anyone have any suggestions on the best way to start gpg-agent on fedora 13?It's installed just not running. Is there a Fedora standard way to use it?
View 2 Replies View RelatedI have installed dogtag PKI in my redhat machine using EPEL repo. I am only using CA agent right now. I have generated certificates for my Redhat Directory Server using this CA instance. Now by mistake, Admin Certificate which was stored in my web browser for Certificate based login inside CA Agent has been deleted. Now i can't go inside CA Agent. Is there a way i can go inside CA Agent?
View 2 Replies View RelatedI 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?
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