In recent times I have brought my PC to work "hard", which raised much the load average and the temperature was close to dizzying levels.
Usually the work performed by the PC were also long which did not allow me to stand in front of it all the time of execution to monitor how the PC would respond to this workload, and then, often, I ended up doing other things while my dear beloved computer finished its tasks. The problem that arose, however, was also essential to monitor the parameters of the remote PC. I provide my cell phone as the only link between me and the computer.
ssh and I immediately thought that was how I installed it, I opened my door 22 with the convenient and router on my phone (Motorola SLVR L7 with an ordinary Java available) I installed MidpSSH , a handy app. to manage SSH / Telnet from your J2ME mobile phone.
Once completed the installation lap and do a first test are immediately confronted with the reality: the SSH connection is working, but then I have no dialogue between the PC and mobile phone, there is something wrong!
immediately think of a problem and SSH port shortly after but deny this hypothesis: trying to connect via SSH from another computer everything works perfectly. My PC answers ready.
At this point I think about a problem MidpSSH and start the research and tests (and meanwhile the pennies fall from my Vodafone account.)
While for the umpteenth time, I MidpSSH around in the settings of the eye falls on the ability to connect, in addition to SSH, telnet to a normal server. And so I decided to write a small server in python to get what I want as I want. And so was born tcpcs .
tcpcs What?
As explained in the little story above is a simple TCP server that, thanks to the command, returns some values \u200b\u200buseful to analyze the state of the PC / server.
What are the commands?
I tcpcs structured with certain commands, as is the case for FTP (try a telnet session to an FTP server). Li
list various parameters:
- LOGIN username password Attempt login with your "username" and "password". Return "+ OK" if the data is correct or "-ERR" in case of wrong data.
- TEMP Returns the temperature of the CPU (you need to install lm-sensors package callable with the command "sensors") [login required]
- loadavg Returns the load average of the PC (usually displayed with the command " uptime ") [login required]
- UPTIME Returns the uptime of the PC (viewable with the command" uptime "from the console) [login required]
- ISLOG returns" + OK "if you are logged in, or "-ERR" if there is no open session login. [Login required]
- WHOAMI Returns the nickname with which you are logged in, or a simple "-ERR" in the event log is not the case. [Login required]
- LOGOUT Closes the login session and then requests for the various commands that need to be logged. [Login required]
- TIME returns the time of the PC / server that runs tcpcs.
- QUIT Terminates the telnet session with the server
- SHUTDOWN password in the configuration file you can specify a special password (different from that with which you log). Knowing the password, you can complete the server process. Otherwise you must kill the process . If no password is specified, the command is considered "not implemented" and will not work. [Login required]
are two configuration files:
- / etc / tcpcs / opzioni.conf: Contains general options used by the server
- / etc / tcpcs / users.conf: contains the list of users and passwords with which you can connect to the server (for now the passwords are in clear for convenience and because the data transmitted are not very sensitive and private data.)
simply changing that file (as root) can change the options and the users.
What are the parameters of file / etc / tcpcs / opzioni.conf ?
parameters are few and simple:
- tcpport (default = 1110): the port where the server starts listening
- usersfile (default = users.conf): the file from which the server reads nick and password for authentication
- shutpwd (default = disabled): the password used with the shutdown command to terminate the server process
And once installed?
Just installed just run the process ( tcpcs ) shell or by using ALT + F2 and type the command.
Once you start the server, open a shell and type telnet localhost 1110
The server will respond (if all goes well) and you can successfully log in via the LOGIN command
admin admin
The rest of the commands are set out above!
To change the account "admin: admin" simply edit the file / etc / tcpcs / users.conf as root.
If you have a static IP or use a dynamic DNS service (I use no-ip.com) your PC / server is also easily accessible from the outside (as long as you open the port 1110 or the one you specified in the configuration file).
I want to try it! How it works?
E 'can be downloaded. Deb package from the following link .
The source is not yet (in .zip / etc .TAR. Etc.), But just open the file. Deb with a standard package manager (such as file-roller) to quickly extract the sources. Being written in python code is compiled and then displayed!
Addictions are just two: python (usually installed by default) and the utility lm-sensors (required for obtain the temperature of the CPU).
I tried it and I have criticisms / advice / malfunction / praise / etc.
and posted in the comments or send an email via my blogger nick!
thank all those who even try the script!
I do not pretend to do script / software used in large scale but I want to share my little "work" that could be useful to others in my same condition. At the bottom is not even that the open source (at least in philosophy)?
