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C# monitor SNMP timeticks from multiple IP addresses

I'm attempting to monitor multiple SNMP agents (timeticks) with SnmpSharpNet across separate networks. The code below works with a single IP address, but when I try and connect to a second IP address the code fails, I'm trying to run this asynchronously but it appears that SnmpSharpNet won't allow me to receive data from more than one agent.
Is this the right way to approach this problem? Is there a better alternative to SmnpSharpNet?
community = new OctetString("public");
// Define agent parameters class
param = new AgentParameters(community);
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
for (int i = 0; i < sendsqldatalist.Count(); i++)
{
agent = new IpAddress(sendsqldatalist[i].ip);
target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Make SNMP request
resultlist.Add(result = (SnmpV1Packet)target.Request(pdu, param));
// If result is null then agent didn't reply or we couldn't parse the reply.r
if (resultlist[i] != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (resultlist[i].Pdu.ErrorStatus != 0)
{
Console.WriteLine("error on - " + sendsqldatalist[i].oid + " " + sendsqldatalist[i].ip);
// agent reported an error with the request
//- Error status found here http://www.docs.snmpsharpnet.com/docs-0-9-1/
MessageBox.Show("Error in SNMP reply from " + target.Address.ToString() + Environment.NewLine + "Error status " + result.Pdu.ErrorStatus.GetType() + Environment.NewLine + "Error Index " + result.Pdu.ErrorIndex.ToString(), "WARNING!");
}
else
{
Console.WriteLine("ConnectSNMP() CONNECTED - " + sendsqldatalist[i].oid + " - " + sendsqldatalist[i].ip);
}
}
}
Thanks in advance!

How to stop a process from System.Diagnostics.Process and get the statistics in the end

I'm using this code but when i stop the process it not get the ping statistics :
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.FileName = "ping";
p.StartInfo.Arguments = "-c " + count + " -i " + interval + " -s " + buffer + " -W " + timeout + " " + address;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
string readData = "";
DateTime dt = DateTime.Now.AddSeconds(5);
if (p.Start())
{
Scanner scanner = new Scanner(p.StandardOutput.BaseStream);
while (scanner.HasNextLine)
{
readData = scanner.NextLine().ToString();
Console.WriteLine(readData.ToString());
if (!string.IsNullOrEmpty(readData) && !readData.StartsWith("---"))
{
Match M = Regex.Match(readData, #"^[\d]+ bytes from ([^:]+): [^ ]+ ttl=([\d]+) time=([^ ]+) ms");
if (M != null && M.Success)
{
string IP = M.Groups[1].Value;
string TTL = M.Groups[2].Value;
string timeStr = M.Groups[3].Value;
Console.WriteLine(String.Format("Ping to {0} took {2} ms with a ttl of {1}", IP, TTL, timeStr));
// Parsing the timeStr will work the same way as above
if(dt > DateTime.Now)
{
p.StandartInput.Write("\x3");
}
}
else
{
Match M1 = Regex.Match(readData, #"^rtt [^0-9]*([\d][^\/]+)\/([^\/]+)\/([^\/]+)\/([^ ]+) ms$");
if (M1 != null && M1.Success)
{
float avgPingTime = 0;
float maxPingTime = 0;
float minPingTime = 0;
string minPingString = M1.Groups[1].Value;
string avgPingString = M1.Groups[2].Value;
string maxPingString = M1.Groups[3].Value;
// Now parse that value
float.TryParse(minPingString, System.Globalization.NumberStyles.Float, System.Globalization.NumberFormatInfo.InvariantInfo, out minPingTime);
float.TryParse(avgPingString, System.Globalization.NumberStyles.Float, System.Globalization.NumberFormatInfo.InvariantInfo, out avgPingTime);
float.TryParse(maxPingString, System.Globalization.NumberStyles.Float, System.Globalization.NumberFormatInfo.InvariantInfo, out maxPingTime);
Console.WriteLine(String.Format("Min Time : {0} , AVG {2} ms, Max Time {1}", minPingTime, maxPingTime, avgPingTime));
}
}
}
}
}
Without using
if(dt > DateTime.Now)
{
p.StandartInput.Write("\x3");
}
the result display like this :
64 bytes from 8.8.8.8: icmp_req=1 ttl=46 time=13.9 ms
64 bytes from 8.8.8.8: icmp_req=2 ttl=46 time=13.9 ms
64 bytes from 8.8.8.8: icmp_req=3 ttl=46 time=13.9 ms
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 3016ms
rtt min/avg/max/mdev = 13.910/13.926/13.951/0.010 ms
but if I stop the ping using p.StandartInput.Write("\x3"); it never goes to the statistics part it hangs at sequence 1 : 64 bytes from 8.8.8.8: icmp_req=1 ttl=46 time=13.9 ms and dont continue reading , how to show the statistics after stoping the ping process ?
in other words my problem is when the user want to stop the ping it should display the statistics for the certain time that it was used to ping...
UPDATE
I have implemented p.StandartInput.Write("/x3"); and it interrupts the ping process but it does not display the statistics and just hangs there.

If you are actually interested in the ping values, why not just use the ping class? https://msdn.microsoft.com/en-us/library/system.net.networkinformation.ping(v=vs.110).aspx

.Net.Mail body message lose the format while is sent c# .net

I'm using a string builder to create a body message while trying to do something.
the issue es I'm getting the value from the string builder and this one is formatted.
Example from my string builder:
Following files were attached by email:
1. C:\SALASFRI2_20150824094158_ScrubLog.txt - Record Count: 8
2. C:\SALASFRI2_20150824102328_ScrubLog.txt - Record Count: 8
3. C:\SALASFRI2_20150824102516_ScrubLog.txt - Record Count: 8
4. C:\SALASFRI2_20160121125353_ScrubLog.txt - Record Count: 8
5. C:\SALASFRI2_20160121125659_ScrubLog.txt - Record Count: 8
===================================================
Total Files: 5
Please contact your system administrator for any further assitance.
That's exactly how the stringbuilder looks, but when the email arrived, it lose their format as follow:
do you know if there is a property to don't lose the format when it arrive to my email?
This is my code:
if (Notification.IncludeFileName || Notification.IncludeRecordCount)
{
BodyMessage.Append("Following files were attached by email: \n");
for (int index = 0; index < NumberOfFiles; index++)
{
if (Notification.IncludeFileName && Notification.IncludeRecordCount)
BodyMessage.Append((index + 1) + ". " + LocalFiles[index] + " - Record Count: " + File.ReadLines(LocalFiles[index]).Count() + "\n");
else
BodyMessage.Append((index + 1) + ". " + LocalFiles[index] + File.ReadLines(LocalFiles[index]).Count() + "\n");
}
}
if (Notification.IncludeNumberOfFiles)
{
BodyMessage.Append("\n===================================================\n\n");
BodyMessage.Append("Total Files: " + NumberOfFiles + "\n");
}
BodyMessage.Append("\nPlease contact your system administrator for any further assitance.");
////////////////////END OF SUBJECT AND BODY MAIL MESSAGE VALIDATION
////////............SEND THE ATTACHMENTS THROUGH EMAIL................///////////
try
{
MailMessage Email = new MailMessage();
SmtpClient smtp = new SmtpClient(AppConfiguration.SMTPServer);
Email.From = new MailAddress(AppConfiguration.EmailAddress);
Email.To.Add(protocol.SMTPEmailList);
Email.Subject = EmailSubject;
Email.Body = BodyMessage.ToString();
if (directories.Zip)
Email.Attachments.Add(new Attachment(ZipName));
else
foreach (var attachment in LocalFiles)
{
Email.Attachments.Add(new Attachment(attachment));
}
smtp.Port = AppConfiguration.SmtpPort;
smtp.UseDefaultCredentials = true;
smtp.Send(Email);
Email.Dispose();

You probably need to use "\r\n" as your newline sequence instead of just "\n".

Task.StartNew() called multiple times only returning once

I have used the following code:
var tuple = Tuple.Create("xxx.xx.xx.xxx", 6102, "109", "Metrix1", 1);
var tuple1 = Tuple.Create("xxx.xx.xx.xxx", 6102, "110", "Metrix2", 1);
var tuple2 = Tuple.Create("xxx.xx.xx.xxx", 6102, "111", "Metrix3", 1);
var tuple3 = Tuple.Create("xxx.xx.xx.xxx", 6103, "106", "Metrix4", 2);
gateways.Add(tuple);
gateways.Add(tuple1);
gateways.Add(tuple2);
gateways.Add(tuple3);
foreach (var gatewayId in gateways)
{
Task.Factory.StartNew(
() => GetJobs(
gatewayId.Item1,
gatewayId.Item2,
gatewayId.Item3,
gatewayId.Item4,
gatewayId.Item5));
}
This then calls GetJobs which calls CallGateway and if required ProcessMessageNew
private string GetJobs(string Url , int portNumber, string Engineer , string mEngineer , int GatewayId)
{
ConfigLogger.Instance.LogInfo("info", "Calling Gateway Start: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + Engineer);
string gatewayResult = CallGateway(Engineer, Url, portNumber);
ConfigLogger.Instance.LogInfo("info", "Calling Gateway End: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + Engineer);
if (gatewayResult != null)
{
ConfigLogger.Instance.LogInfo("info", "Processing Request Message: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + Engineer);
ProcessMessageNew(gatewayResult, Engineer, Url, portNumber , MEngineer ,PGatewayId);
}
return gatewayResult;
}
CallGateway:
public string CallGateway(string gatewayUrl, int portNumber , string engineer)
{
string result = null;
int streamBufferSize = 1000;
IPHostEntry ipHostInfo = Dns.Resolve(gatewayUrl.ToString());
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPEndPoint remoteEP = new IPEndPoint(ipAddress, portNumber);
// Create a TCP/IP socket.
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
clientSocket.Connect(ipAddress, portNumber);
// Set these on app param
clientSocket.ReceiveTimeout = 300000;
clientSocket.SendTimeout = 60000;
// build message string to send to gateway
string message = BuildMessageGetJobsFromGateway(engineer, SendTypeIn);
// Create a NetworkStream that owns clientSocket and
// then create a BufferedStream on top of the NetworkStream.
// Both streams are disposed when execution exits the
// using statement.
using (var netStream = new NetworkStream(clientSocket, true),
var bufStream = new BufferedStream(netStream, streamBufferSize))
{
// Check whether the underlying stream supports seeking.
Console.WriteLine("NetworkStream {0} seeking.\n", bufStream.CanSeek ? "supports" : "does not support");
//variable used to only close once
bool doClose = true;
// Send and receive data.
if (bufStream.CanWrite)
{
try
{
SendData(netStream, bufStream, SendTypeIn, message);
}
catch (Exception exSend)
{
Console.WriteLine(exSend.Message.ToString());
}
}
if (bufStream.CanRead)
{
try
{
result = ReceiveData(netStream, bufStream, clientSocket);
}
catch (Exception exRecieve)
{
//
}
finally
{
Console.WriteLine("Closing Stream");
doClose = false;
bufStream.Close();
clientSocket.Close();
}
}
// When bufStream is closed, netStream is in turn
// closed, which in turn shuts down the connection
// and closes clientSocket.
Console.WriteLine("\nShutting down the connection.");
// only close if no exception is raised
if (doClose)
{
bufStream.Close();
clientSocket.Close();
}
}
return result;
}
}
However, I get this in the log file 4 calls to the call gateway method and only one return for engineer 106, the call to gateway creates a Socket Client which then receive data but it is only happening for one out of the 4 calls :
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:19] - Calling Gateway Start: 16:47:19.6574 for engineer: 109
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:19] - Processing Call Mobile Gateway: 16:47:19.6624
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:20] - Calling Gateway Start: 16:47:20.6685 for engineer: 110
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:20] - Processing Call Mobile Gateway: 16:47:20.6875
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:21] - Calling Gateway Start: 16:47:21.6696 for engineer: 111
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:21] - Processing Call Mobile Gateway: 16:47:21.6716
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:22] - Calling Gateway Start: 16:47:22.6686 for engineer: 106
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:22] - Processing Call Mobile Gateway: 16:47:22.6706
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:23] - Processing Call Mobile Ended: 16:47:23.0476
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:23] - Calling Gateway End: 16:47:23.0486 for engineer: 106
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:23] - Processing Request Message: 16:47:23.0486 for engineer: 106
[MobileGateway.exe] - [Info] - [25/09/2015 16:47:23] - Message Recieved From Gateway: 16:47:23.0496
The calls should be processed in Parallel or Asyncronously as there is a requirement to call this method simultaneously over 1000 times and they are long running processes so I need to process multiple at a time.
Any ideas why I am getting 1 response instead of 4 ?

Since you have xxxed the addresses in your code, I can't say assuredly but it is probably happening because you have the same port number 6102 for the previous three gateways. So you are closing and opening stream for same address three times in parallel and that is throwing exceptions only to be caught silently later.
Further, you can improve readability and maintainability of your code by passing the gateway objects in single piece like following:
foreach (var gatewayId in gateways)
{
Task.Factory.StartNew(() => GetJobs(gatewayId));
}
and modify your GetJobs method too as:
private string GetJobs(Gateway gateway)
{
ConfigLogger.Instance.LogInfo("info", "Calling Gateway Start: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + gateway.Engineer);
string gatewayResult = CallGateway(gateway);
ConfigLogger.Instance.LogInfo("info", "Calling Gateway End: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + gateway.Engineer);
if (gatewayResult != null)
{
ConfigLogger.Instance.LogInfo("info", "Processing Request Message: " + DateTime.Now.ToString("HH:mm:ss.ffff") + " for engineer: " + gateway.Engineer);
ProcessMessageNew(gatewayResult, gateway);
}
return gatewayResult;
}
Also, going down further, change your ProcessMessageNew and CallGateway too, to match with the new definition in the code above.

SEO: A whois server that work for .SE domains?

I'm developing a small domain checker and I can't get .SE to work:
public string Lookup(string domain, RecordType recordType, SeoToolsSettings.Tld tld)
{
TcpClient tcp = new TcpClient();
tcp.Connect(tld.WhoIsServer, 43);
string strDomain = recordType.ToString() + " " + domain + "\r\n";
byte[] bytDomain = Encoding.ASCII.GetBytes(strDomain.ToCharArray());
Stream s = tcp.GetStream();
s.Write(bytDomain, 0, strDomain.Length);
StreamReader sr = new StreamReader(tcp.GetStream(), Encoding.ASCII);
string strLine = "";
StringBuilder builder = new StringBuilder();
while (null != (strLine = sr.ReadLine()))
{
builder.AppendLine(strLine);
}
tcp.Close();
if (tld.WhoIsDelayMs > 0) System.Threading.Thread.Sleep(tld.WhoIsDelayMs);
return builder.ToString();
}
I've tried whois servers whois.nic-se.se and whois.iis.se put I keep getting:
# Copyright (c) 1997- .SE (The Internet Infrastructure Foundation).
# All rights reserved.
# The information obtained through searches, or otherwise, is protected
# by the Swedish Copyright Act (1960:729) and international conventions.
# It is also subject to database protection according to the Swedish
# Copyright Act.
# Any use of this material to target advertising or
# similar activities is forbidden and will be prosecuted.
# If any of the information below is transferred to a third
# party, it must be done in its entirety. This server must
# not be used as a backend for a search engine.
# Result of search for registered domain names under
# the .SE top level domain.
# The data is in the UTF-8 character set and the result is
# printed with eight bits.
"domain google.se" not found.
Edit:
I've tried changing to UTF8 with no other result.
When I try using whois from sysinternals I get the correct result, but not with my code, not even using SE.whois-servers.net.
/Niels

Hmmm, when doing a whois google.se on my Mac I get the following:
# Copyright (c) 1997- .SE (The Internet Infrastructure Foundation).
# All rights reserved.
# The information obtained through searches, or otherwise, is protected
# by the Swedish Copyright Act (1960:729) and international conventions.
# It is also subject to database protection according to the Swedish
# Copyright Act.
# Any use of this material to target advertising or
# similar activities is forbidden and will be prosecuted.
# If any of the information below is transferred to a third
# party, it must be done in its entirety. This server must
# not be used as a backend for a search engine.
# Result of search for registered domain names under
# the .SE top level domain.
# The data is in the UTF-8 character set and the result is
# printed with eight bits.
state: active
domain: google.se
holder: googoo5855-00001
admin-c: -
tech-c: -
billing-c: -
created: 2008-10-20
modified: 2010-09-18
expires: 2011-10-20
transferred: 2009-03-06
nserver: ns1.google.com
nserver: ns2.google.com
nserver: ns3.google.com
nserver: ns4.google.com
dnssec: unsigned delegation
status: ok
registrar: MarkMonitor Inc
So it's probably just your code. Maybe you have to do the request in a non-ASCII encoding, such as UTF8?

I finally solved it.
Using wireshark, I saw that the whois from sysinternals doesn't add the "DOMAIN" part:
string strDomain = recordType.ToString() + " " + domain + "\r\n";
(recordType.ToString == "DOMAIN").
So when I removed that, it worked!

without looking to your code why not:
example # http://balexandre.com/verifyDomain.aspx
this will give you, for par.se
IP Found:
- 193.13.249.142
Host name:
- parweb1.par.se
Aliases:
none
IP address list:
- 193.13.249.142
If you just want the RIPE information of an IP, you can also use my page for test
http://balexandre.com/iplookup.aspx?ip={ip to test}
Button event
protected void btnCheck_Click(object sender, EventArgs e)
{
DomainCheck domain = new DomainCheck();
string ip = domain.GetIPFromDomain(txtDomain.Text.Trim());
litResponse.Text = String.Format(
"IP{0} Found:<br/> - <strong>{1}</strong><br/>{2}",
ip.Contains(",") ? "'s" : "",
ip.Replace(",", "<br/> - "), domain.VerifyIP(ip));
}
DomainCheck code:
public class DomainCheck
{
public DomainCheck() { }
public string VerifyIP(string ipAddress)
{
if (String.IsNullOrEmpty(ipAddress))
return "IP Address is invalid!";
string r = "";
if (ipAddress.Contains(","))
{
foreach (string ip in ipAddress.Split(','))
r += String.Format("<br/><br/>#### <em>Checking {0}</em>{1}", ip, CheckIPAddress(ip));
}
else
r += CheckIPAddress(ipAddress);
return r;
}
public string GetIPFromDomain(string hostname)
{
string r = "";
IPAddress[] addresslist = Dns.GetHostAddresses(hostname);
foreach (IPAddress theaddress in addresslist)
{
r += String.Format("{0},", theaddress.ToString());
}
return String.IsNullOrEmpty(r) ? null : r.TrimEnd(',');
}
private string CheckIPAddress(string ipAddress)
{
string r = "";
try
{
IPAddress hostIPAddress = IPAddress.Parse(ipAddress);
IPHostEntry hostInfo = Dns.GetHostByAddress(hostIPAddress);
// Get the IP address list that resolves to the host names contained in
// the Alias property.
IPAddress[] address = hostInfo.AddressList;
// Get the alias names of the addresses in the IP address list.
String[] alias = hostInfo.Aliases;
r += String.Format(
"<br/>Host name: <br/>- <strong>{0}</strong><br/>Aliases: ",
hostInfo.HostName);
if (alias.Length == 0)
r += "<br/><em>none</em>";
else
for (int index = 0; index < alias.Length; index++)
r += String.Format("<br/>- <strong>{0}</strong>", alias[index]);
r += "<br/>IP address list: ";
if (address.Length == 0)
r += "<br/><em>none</em>";
else
for (int index = 0; index < address.Length; index++)
r += String.Format("<br/>- <strong>{0}</strong>", address[index]);
}
catch (SocketException e)
{
r = String.Format(
"SocketException caught!!!<br/>Source : {0}<br/>Message : {1}",
e.Source, e.Message);
}
catch (FormatException e)
{
r = String.Format(
"FormatException caught!!!<br/>Source : {0}<br/>Message : {1}",
e.Source, e.Message);
}
catch (ArgumentNullException e)
{
r = String.Format(
"ArgumentNullException caught!!!<br/>Source : {0}<br/>Message : {1}",
e.Source, e.Message);
}
catch (Exception e)
{
r = String.Format(
"Exception caught!!!<br/>Source : {0}<br/>Message : {1}",
e.Source, e.Message);
}
return r;
}
}