What tool would you recommend to monitor the connectivity status of a machine, this is if a given machine it is able to connect to some web servers over time. It should be able to log the status.
There is a long list of freeware at http://ping-monitors.qarchive.org/
I tend to use Nagios and OpenNMS to monitor large batches of servers (and in the Unix environment, not windows). However, some pure windows-only shops I've worked with have really liked using What's Up Gold. Alternately, a combination of a quick perl script, the LWP library from CPAN and the scheduled task manager would probably do the trick too.
When we had to do something similar, we just mocked up some VBS script to attempt to connec to the machines we needed to log. Obviously behind the firewall, on the same domain. Dumped the logs into Excel. Quick and dirty for some network diagnostics, but not a long term solution.
Related
I need to pull log files from a Windows server. The log files appear every minute and I am trying to ftp to the server pull the file back to the linux box and process it. I have been looking around and found about inotify, I am not sure how to use it in a bash script after ftp to the Windows server. I am open to other implementation it does not have to be ftp/inotify but I am not sure how this could be done.
any ideas??
Two products come to mind depending on how you plan to approach the solution.
I personally use Splunk on a variety of platforms (Windows & Linux servers/local Linux & OSX dev environments). It is a real-time log aggregator that features an API and the ability to query. Even if this doesn't solve your problem, the free version has some very robust features that you should consider: http://www.splunk.com
The second approach would be synchronization of your web directories using something like RSync. I've used RSync on Linux boxes and always appreciated what it can do. I even see it now has a Windows port: https://www.itefix.no/i2/cwrsync
Hello i have 3 networked machine with a shared folder, i need a script on one of the machines to run a files on all 3 computers at the same time.
What is the best way to approach this?
PsExec from sysinternals
Utilities like Telnet and remote control programs like Symantec's PC
Anywhere let you execute programs on remote systems, but they can be a
pain to set up and require that you install client software on the
remote systems that you wish to access. PsExec is a light-weight
telnet-replacement that lets you execute processes on other systems,
complete with full interactivity for console applications, without
having to manually install client software. PsExec's most powerful
uses include launching interactive command-prompts on remote systems
and remote-enabling tools like IpConfig that otherwise do not have the
ability to show information about remote systems.
Note: some anti-virus scanners report that one or more of the tools
are infected with a "remote admin" virus. None of the PsTools contain
viruses, but they have been used by viruses, which is why they trigger
virus notifications.
http://technet.microsoft.com/en-gb/sysinternals/bb897553.aspx
You can use waitfor to synchronize.
At the targets use waitfor anysignalname It will wait, until this signal is sent.
At the host (or on another cmd-prompt at one of the three targets) use waitfor /SI anysignalname to send the signal.
I have a minecraft server running ubuntu server. What i've been doing so far is using putty to create a new session on my PC. The problem is that eventually like most human beings I go to sleep, and do not like having my PC left on cuz of the noise. If i turn off my PC obviously that session will end and the server will go down. What I want to do is create a session on the main server(not my PC), and use putty to control that existing session(from my PC). This way even if I turn off my PC the server will still be running in the other room. I appreciate any feedback. Thanks in advance.
What you are describing is referred to as a daemon in UNIX. The standard way to manage daemons is through the init system. The init system has been around for a very long time and has diverged quite a bit between BSD, Solaris, and the various Linux Distros.
All the init systems provide the same basic functionality. The init system manages long running processes which are not tied to a user login. They are frequently used for managing server oriented processes, such as web servers.
Where the init systems differ is in their usage and the features they provide. Ubuntu uses an init replacement called upstart and it is very well documented.
You could write the needed upstart scripts yourself, but a quick search provides plenty of upstart scripts other people have created for minecraft that you could use instead.
http://www.minecraftwiki.net/wiki/Tutorials/Ubuntu_startup_script
You are looking for tmux or screen.
First, I guess I'd have to figure out if I'm running remotely and second I'd have to figure out whether my remote connection is a standalone remote app or an app running on a terminal server (that may be tricky).
But, once I've figured out all those awful things, is there a way to run a windows function like ShellExecute locally instead of remotely?
The reason I'd want to do this is because I launch a web browser to view rather high bandwidth things that require javascript and flash and certain sysadmins who administer our product aren't too keen on having to make unnecessary and insecure modifications to their terminal server farm.
Yes, if the clients are running Windows and you can install software on them.
See Remote Desktop Services Virtual Channels in MSDN.
There is a free tool that does exactly what you want. I got reference from TechNet forums, it's named Remote Executer from http://www.mqtechnologies.com
Good luck
I'm working on some academic research projects involving scraping large data sets from the web using Python. It's been inconvenient to work on my academic institution's Linux server because (1) I don't have superuser access, meaning I'm dependent on the IT staff to install my packages, and (2) my disk quota is somewhat limited (I would ideally want ~10 GB). What is the simplest way for me to get access to a machine that solves these problems? I don't need huge processing power; I just need access to a reasonably fast machine that runs 24/7, so that my programs can run continuously, and above all, something very simple to get running, use, and maintain, since I have a few non-CS people working on this project with me. Linux would be preferable, but I'd consider Windows too.
I'm aware of Amazon Web Services, but am wondering if there's something more appropriate to my specific needs.
By the way, it would be a huge bonus if I could get some sort of remote desktop access to this machine so I wasn't limited to using SSH and SFTP.
Suggestions?
EDIT: I can't use VirtualBox or Virtual PC because I need the program to be running around the clock, and I need to turn off my laptop often, etc.
If you do want to stick with running on your CS department's machines, use virtualenv to solve your package installation woes. And if disk space is an issue, you could use S3 (and perhaps FUSE) to store huge amounts of data extremely cheaply.
However, if that's not really what you're after, I can recommend Slicehost very highly. They give you a virtual private server - so you have complete control over what gets installed, users, admin, etc.
In principle, it's very much like EC2 (which I prefer to use for "real" servers), but has a friendly interface, great customer service and is aimed at smaller projects like yours.
Use x11vnc with ssh.
'sudo apt-get install x11vnc' on your remote server.
Once you have that, you can access your remote server via vnc, but the great thing is that you can tunnel vnc over ssh like so:
ssh -X -C -L 5900:localhost:5900 remotehost x11vnc -localhost -display :0
For more details see the x11vnc manpage.
Or, just setup remote desktop -- (which is actually vnc) on your linux distribution. Most distributions come with a GUI to configure remote desktop access.
If you have a linux machine you can use, then SSH -X will allow you to start GUI programs. It's not remote desktop, but it's close.
ssh -X whoever#whatever.com
firefox
Then bam. A firefox window pops on your desktop.
I have been pretty happy with TekTonic Virtual Private Servers. It's a virtualized environment, but you have full root access to install any packages you need. I'm not sure what your CPU and memory constraints are, but if they aren't too extensive then this should fit the bill nicely for you. I don't know if you would be able to enable a remote desktop as I've never tried but it may be possible to install the requisite packages.
The plans range from $15/mo to $100/mo, the $15/mo plan comes with 294MB RAM, 13GB disk space, and 2.6GHz max CPU speed. I ran on that plan for quite a while and eventually moved up to the next level up with double the disk/cpu/mem, and I've been quite happy with it. I've been with them since 2003 and have yet to find anyone who offers equivalent plans at these prices.