Even after uninstalling windows service, port number remains still occupied - windows-services

I am installing windows service and it works fine.
Now I am uninstalling the same service. (to be specific I am using installutil command for installing as well as uninstalling) The service gets uninstalled but when I go to command prompt and check the status of the port it shows the port is still occupied. (Using netstat command)
Due to this when I try to delete the folder containing the service some of the dlls are not getting deleted and on trying to delete them forcefully I get the message already in user.
Can someone guide on this.

Use netstat -b to determine which executable is occupying your port, then kill it using task manager with the "Show processes from all users" option enabled.

Finally after doing testing different combination with netstat, I came up with this code
private static int GetProcessId(string portno)
{
string command = "netstat -o -n -a | findstr 0.0:" + portno;
ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "/c " + command);
procStartInfo.CreateNoWindow = true;
procStartInfo.UseShellExecute = false;
procStartInfo.RedirectStandardOutput = true;
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
proc.WaitForExit();
StreamReader sr1 = proc.StandardOutput;
string PID = sr1.ReadLine();
int index = PID.LastIndexOf(" ") + 1;
PID = PID.Substring(index, (PID.Length - (index--)));
return Convert.ToInt32(PID);
}
and then to kill that process
private static void KillProcess(int PID)
{
try
{
Process p = Process.GetProcessById(PID);
p.Kill();
}
catch (Exception e)
{
MessageBox.Show(e.Message + "\n" + e.StackTrace);
}
}

Related

How does my PHP recognise whether it is running via Docker or Xampp?

I have a PHP login system that should be built to run on both XAMPP and Docker at the same time. My database need to be localy stored.
I create my Container and Image like these:
Image: docker build -t php . Container: docker run -dp 9000:80 --name php-app php
<?php
$host = "host.docker.internal"; // need to be that or 'localhost'
$name = "test";
$user = "root";
$passwort = "";
try {
$mysql = new PDO("mysql:host=$host;dbname=$name", $user, $passwort);
}
catch (PDOException $e) {
echo "SQL Error: ".$e->getMessage();
}
?>
Where do I get the information on which system I am running to make this value dynamic?
You can check if you are inside Docker this way:
function isDocker(): bool
{
return is_file("/.dockerenv");
}
I haven't worked on windows system yet but in Linux, You can check the processes and find process execute using docker or not.
$processes = explode(PHP_EOL, shell_exec('cat /proc/self/cgroup'));
// Check process folder path and pass here
$processes = array_filter($processes);
$is_docker = true;
foreach ($processes as $process) {
if (strpos($process, 'docker') === false) {
$is_docker = false;
}
}
Then you can implement as per your need.
if($is_docker === true){
// Do something
}

Start.Process() .net Core doesn't work in Linux Docker

I have created a docker container with a ASP.net Core Service. This service, however, should start another service inside the docker container. The problem I am facing right now is that Process.Start() doesn't seem to work in this Linux container.
This is what I tried so far:
Process process;
ProcessStartInfo processInfo;
string fileName = "bin/bash dotnet run /root/SubService/SubService.API.dll";
string arguments = $"Company --urls http://localhost:5000/SolutionName";
string escapedArguments = $"-c /{arguments}/";
processInfo = new ProcessStartInfo(escapedFilename, escapedArguments)
{
CreateNoWindow = true,
UseShellExecute = false,
WindowStyle = ProcessWindowStyle.Hidden,
RedirectStandardError = false,
RedirectStandardOutput = false
};
try
{
process = Process.Start(processInfo);
process.WaitForExit();
process.Close();
}
catch(Exception e)
{
Console.WriteLine(e.Message);
}
When Process.Start(processInfo) is called I get the exception "No such file or directory". The path, however, is correct.
What could be the problem? Or is there an alternative way to start a process from a asp.net core service.
Thank you.
After some more testing, the problem seemed to be the incorrect use of the Process.Start() method. This time arguments were used.
This is how it worked:
Process process;
string outputStream;
string errorStream;
try
{
string fileName = "dotnet";
string arguments = $"{subServiceData.ApplicationPath} {subServiceData.SolutionName} --urls { subServiceData.SubServiceUrl}";
process = Process.Start(fileName, arguments);
process.WaitForExit();
// *** Read the streams ***
outputStream = process.StandardOutput.ReadToEnd();
errorStream = process.StandardError.ReadToEnd();
int exitCode = process.ExitCode;
process.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}

Connecting to Neo4j Aura with .NET Core 2.2 web api

I am trying to connect a to Neo4j Aura instance from a .NET core 2.2 web api. I understand I need the Neo4j .Net Driver v4.0.0-alpha01, but I do not seem to be able to connect. There aren't very many examples out there as this driver is new and so is Aura.
I keep getting:
Failed after retried for 6 times in 30000 ms. Make sure that your database is online and retry again.
I configure the driver as such
public void ConfigureServices(IServiceCollection services)
{
string uri = "neo4j://1234567.databases.neo4j.io:7687";//not actual subdomain
string username = "neo4j";
string password = "seeeeeeecret";//not actual password
services.AddCors();
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
services.AddSingleton(GraphDatabase.Driver(uri, AuthTokens.Basic(username, password)));
}
and in my test controller i run this
private async Task<string> Neo4JTestAsync()
{
string db = "MyDb";
string message = "TESTMESSAGE";
IAsyncSession session = _driver.AsyncSession(o => o.WithDatabase(db));
try
{
var greeting = session.WriteTransactionAsync(async tx =>
{
var result = tx.RunAsync("CREATE (a:Greeting) " +
"SET a.message = $message " +
"RETURN a.message + ', from node ' + id(a)",
new { message });
var res = await result;
return "return something eventually";
});
return await greeting;
}
catch (Exception e)
{
return e.Message; // throws "Failed after retried for 6 times in 30000 ms. Make sure that your database is online and retry again"
}
finally
{
await session.CloseAsync();
}
}
I can't get the exact error message you do - but I'm pretty sure this is due to encryption - one of the big differences between the 1.x and 4.x drivers is the default position on Encryption - which is now off by default.
So you'll want to change your initialisation to:
services.AddSingleton(GraphDatabase.Driver(uri, AuthTokens.Basic(username, password), config => config.WithEncryptionLevel(EncryptionLevel.Encrypted)));
That should get you going. Also - make sure you stick with the neo4j:// protocol, as that'll route you properly.
Have you tried bolt:// in the connection string?
string uri = "bolt://1234567.databases.neo4j.io:7687";//not actual subdomain

Java 8 issues printing PS to network printer

Got a weird question for you. Recently upleveled my old project from java 7(jdk1.7.0_10) to java 8(1.8.0.91.x86_64). In java 7 it printed the post script file with no issues and now it is printing the postscript file as plain text instead of converting the file. This is on a redhat linux environment. Simply I am trying to print a string containing a post script file of a file itself.
Here is my original code
DocFlavor flavor = DocFlavor.INPUT_STREAM.POSTSCRIPT;
PrintService pService = PrintServiceLookup.lookupDefaultPrintService();
// In a field environment, send to the printer
if (System.getenv("USER_DEFINED_RELTOP") == null || pfr.exists()) {
if (pService.getName().isEmpty()) {
LOGGER.error("No printer selected");
} else {
LOGGER.info("Printing to " + pService.getName());
DocPrintJob pj = pService.createPrintJob();
try {
InputStream is = new ByteArrayInputStream(data.getBytes("UTF8"));
Doc doc = new SimpleDoc(is, flavor, null);
PrintJobWatcher pjw = new PrintJobWatcher(pj);
pj.print(doc, null);
pjw.waitForDone();
is.close();
} catch (PrintException | IOException e) {
LOGGER.error(e);
} // try block
} // no printer selected
// Otherwise, send to a file
} else {
That worked fine in java 7, I updated it to the oracle spec found here for java 8.
https://docs.oracle.com/javase/8/docs/api/javax/print/PrintService.html#createPrintJob--
https://docs.oracle.com/javase/8/docs/technotes/guides/jps/spec/printing.fm6.html
DocFlavor psFlavor = DocFlavor.INPUT_STREAM.POSTSCRIPT;
PrintRequestAttributeSet attrs = new HashPrintRequestAttributeSet();
attrs.add(MediaSizeName.ISO_A4);
PrintService[] pservices = PrintServiceLookup.lookupPrintServices(psFlavor,
attrs);
File pfr = new File(PFR_INDICATOR);
// In a field environment, send to the printer
if (System.getenv("USER_DEFINED_RELTOP") == null || pfr.exists()) {
//Check we have a printer capable of post script
if (pservices.length > 0) {
LOGGER.info("Printing to " + pservices[0].getName());
DocPrintJob pj = pservices[0].createPrintJob();
try {
InputStream fis = new ByteArrayInputStream(data.getBytes("UTF8"));
//byte[] ba =data.getBytes("UTF8");
Doc doc = new SimpleDoc(fis, psFlavor, null);
LOGGER.info("Doc Flavor " + doc.getDocFlavor());
PrintJobWatcher pjw = new PrintJobWatcher(pj);
LOGGER.info("PrintJob Attributes : " + pj.getAttributes());
pj.print(doc, attrs);
pjw.waitForDone();
fis.close();
} catch (IOException e) {
LOGGER.error(e);
NotificationDialog.show(NotificationDialog.NOTICE_TYPE.ERROR, PRINT_ERROR);
} catch (PrintException e) {
LOGGER.error(e);
}
} else { // no printer selected
This gives me an error java.awt.print.PrinterIOException: java.io.IOException: /usr/bin/lpr: where it looks to not find lpr.
If I keep it the way it was originally (not write to file) it prints the postscript as plain text even if adding the check to check if the printer is post script capable. If I use the new way of printing file I get a lpr not found error. If I print the PS document using the command lpr it converts it as expected and prints fine. If I use lpr -l that doesn't format it prints it document as plain text as well.
Any suggestion/help would be great. I am lost on what to do. I really don't want to convert it to an image and print that.
At a guess I'd say that your printer is an HP or at least PCL + PS printer, not a pure PostScript-only printer.
In that case you generally need to prepend the PostScript with a language selection PJL string. If you don't do this then it usually defaults to PCL and if you don't send any PCL commands (which all begin with 0x1B) then everything is treated as plain ASCII text. That would explain why both your application and lpr -l end up writing text, but lpr itself doesn't (presumably it adds the PJL).
You could try prepending the PostScript file with something like:
%-12345X#PJL JOB
#PJL ENTER LANGUAGE=POSTSCRIPT
NB the first byte there, before the % should be a 0x1b ESC character, but I can't readily paste binary....
Try sending the file with lpr -l if that works then you could try your old printing method.

can't run the automated project in testcomplete when it calls from jenkins

can't run the automated project in testcomplete when calls from jenkins.
In our continuous integration part ,the project is automated using testcomplete and it is calling through jenkins with the help of bat file.The scripts inside the bat file is
"C:\Program Files\Automated QA\TestComplete 7\Bin\TestComplete.exe " "D:\Test Complete7 Projects\ProjectInput_AllSamples\ProjecInputs.pjs" /r /p:Samples /rt:Main "iexplore" /e
It will open testcomplete and iexplorer ,but it is not filling the data(automation).
It is working perfectly when we directly call the bat file with out jenkins.Is there any solution
From your description it sounds like something in Windows stopping you from allowing your test application to work normally. It might be the fact that the second user could be a problem but I can't confirm that as I was not able find any definite explanations of how it works in Windows XP. I am pretty sure that this won't work on a Windows Vista, 7, 8 or server machine though because of the changes in architecture.
It sounds like the best solution is to make sure that your automated UI tests are started by an interactive user. When I was trying to add automated testing to our builds we used TestComplete 7 on a Windows XP SP2 virtual machine. In order to start our tests as an interactive user we:
Made an user log on when windows started, this way there was always an interactive user which means there was an actual desktop session which has access to the keyboard / mouse. I seem to remember (but can't find any links at the moment) that without an interactive user there is no active desktop that can access the keyboard / mouse.
We wrote a little app that would start when the interactive user logged on. This app would look at a specific file and when that file changed / was created it would read the file and start the application. The code for this app looked somewhat like this:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace ApplicationStarter
{
class Program
{
// The string used to indicate that the application should quit.
private const string ExitString = "exit";
// The path which is being watched for changes.
private static string s_LoadFilePath;
static void Main(string[] args)
{
try
{
{
Debug.Assert(
args != null,
"The arguments array should not be null.");
Debug.Assert(
args.Length == 1,
"There should only be one argument.");
}
s_LoadFilePath = args[0];
{
Console.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Watching: {0}",
s_LoadFilePath));
}
if (File.Exists(s_LoadFilePath))
{
RunApplication(s_LoadFilePath);
}
using (var watcher = new FileSystemWatcher())
{
watcher.IncludeSubdirectories = false;
watcher.NotifyFilter =
NotifyFilters.LastAccess
| NotifyFilters.LastWrite
| NotifyFilters.FileName
| NotifyFilters.DirectoryName;
watcher.Path = Path.GetDirectoryName(s_LoadFilePath);
watcher.Filter = Path.GetFileName(s_LoadFilePath);
try
{
watcher.Created += OnConfigFileCreate;
watcher.EnableRaisingEvents = true;
// Now just sit here and wait until hell freezes over
// or until the user tells us that it has
string line = string.Empty;
while (!string.Equals(line, ExitString, StringComparison.OrdinalIgnoreCase))
{
line = Console.ReadLine();
}
}
finally
{
watcher.Created -= OnConfigFileCreate;
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
private static void RunApplication(string configFilePath)
{
var appPath = string.Empty;
var arguments = string.Empty;
using (var reader = new StreamReader(configFilePath, Encoding.UTF8))
{
appPath = reader.ReadLine();
arguments = reader.ReadLine();
}
// Run the application
StartProcess(appPath, arguments);
}
private static void StartProcess(string path, string arguments)
{
var startInfo = new ProcessStartInfo();
{
startInfo.FileName = path;
startInfo.Arguments = arguments;
startInfo.ErrorDialog = false;
startInfo.UseShellExecute = true;
startInfo.RedirectStandardOutput = false;
startInfo.RedirectStandardError = false;
}
Console.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"{0} Starting process {1}",
DateTime.Now,
path));
using (var exec = new Process())
{
exec.StartInfo = startInfo;
exec.Start();
}
}
private static void OnConfigFileCreate(
object sender,
FileSystemEventArgs e)
{
Console.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"{0} File change event ({1}) for: {2}",
DateTime.Now,
e.ChangeType,
e.FullPath));
// See that the file is there. If so then start the app
if (File.Exists(e.FullPath) &&
string.Equals(s_LoadFilePath, e.FullPath, StringComparison.OrdinalIgnoreCase))
{
// Wait for a bit so that the file is no
// longer locked by other processes
Thread.Sleep(500);
// Now run the application
RunApplication(e.FullPath);
}
}
}
}
This app expects the file to have 2 lines, the first with the app you want to start and the second with the arguments, so in your case something like this:
C:\Program Files\Automated QA\TestComplete 7\Bin\TestComplete.exe
"D:\Test Complete7 Projects\ProjectInput_AllSamples\ProjecInputs.pjs" /r /p:Samples /rt:Main "iexplore" /e
You should be able to generate this file from Jenkins in a build step.
Finally you may need to watch the TestComplete process for exit so that you can grab the results at the end but I'll leave that as an exercise to reader.
If you are running Jenkins (either master or slave) as a windows service, ensure it is running as a user and not as Local System.
We also do the same as Gentlesea's recommends, we run TestExecute on our Jenkins Slaves and keepo the TestComplete licenses for the people designing the TestComplete scripts.

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