csom – server error access SharePoint vm

Have anyone tried to connect Sharepoint url to access sp vm hosted on azure through C# CSOM
this code doesn’t work,getting “Internal Server Error”

using (ClientContext ctx= new ClientContext(siteurl))
{
............
.
.
.
.
.
..
.
.
.

ctx.Load(web);
ctx.ExecuteQuery();

}

cryptography – Why is a password encrypted with AES and then sent back to the server together with the key with RSA (Instagram)?

I am trying to understand an encryption process on a website (Instagram). As far as I know, a public key is sent from the server to the client. Then the password is encrypted with AES_GCM_256 and packed together with the AES key in an array and then in a sealed box with the public key from the Server.

Is a sealed box the same as simply encrypting the array with RSA?

Why do you do that?

I mean, if you find out the RSA private key and then decrypt the data encrypted with RSA, wouldn’t you also have the AES key to decrypt the password?

And the public key is very short:

297e5cd13e20f701d57bd5a1ee82bcead9a20e4080bc6c737917b868eb65f505

Only 64 characters so 512 bits.

Is that even safe enough for RSA?
Or is the key Curve25519?

As far as I know, should an RSA key be at least 2048 bit large?

I would appreciate a link or the answer to a few questions 🙂

Best regards

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networking – Dual WAN active-active for web server

I want publish web server (192.168.1.2) to both internet lines, so my clients can access web either both IP at same time.
I have configured nat on both fw but I can only access to the primary line (which have lower metric on router)
I think the prolem is routing on Router but I can’t solve it 🙁
Can anyone can advise how can I solve this problem?
My router on lab is virtual machine which running Debian 10
Thanks,
Diagram

sql server – conversion failed when converting datetime from character string while inserting and updating to database

I’m trying to insert time and date separately and calculate if it is late to the set time and then insert it to database…

here’s my try code for update

string Date = DateTime.Now.ToString(“dd-MM-yyyy”);
string Time = DateTime.Now.ToString(“h:mm:ss tt”);
SqlCommand comm2 = conn.CreateCommand();
comm2.CommandText = “Update Time_Logs SET Time_Out = ‘” + Time + “‘ where Emp_Id = ‘” + EmpId.Text + “‘ and Date = ‘” + Date + “‘”;
try
{
conn.Open();
comm2.ExecuteNonQuery();
MessageBox.Show(“Time_Out…”);
conn.Close();
TimeCompute();
}
catch (Exception x)
{
MessageBox.Show(x.Message);
conn.Close();
}

and here is the code for inserting

string Date = DateTime.Now.ToString(“dd-MM-yyyy”);
string Time = DateTime.Now.ToString(“h:mm:ss tt”);

        SqlCommand comm = conn.CreateCommand();
        comm.CommandText = "INSERT INTO Time_Logs (Emp_Id, Date, Time_In) VALUES('" + EmpId.Text + "','" + Date + "','" + Time + "')";
        try
        {
            conn.Open();
            comm.ExecuteNonQuery();
            MessageBox.Show("Time_In...");
            conn.Close();
            DateTime time = DateTime.Parse(Time);
            DateTime inDate = DateTime.Parse("8:00:00 AM");
            TimeSpan ts1 = inDate.TimeOfDay;
            TimeSpan ts = time - inDate;
            if (ts < ts1)
            {
                SqlCommand comm2 = conn.CreateCommand();
                comm2.CommandText = "Update Time_Logs SET Late = '" + ts + "' where Emp_Id = '" + EmpId.Text + "' and Date = '" + Date + "'";
                conn.Open();
                comm2.ExecuteNonQuery();
                conn.Close();
            }
            else
            {
                SqlCommand comm2 = conn.CreateCommand();
                comm2.CommandText = "Update Time_Logs SET Late = '" + ts + "' where Emp_Id = '" + EmpId.Text + "' and Date = '00:00:00'";
                conn.Open();
                comm2.ExecuteNonQuery();
                conn.Close();
            }
        }
        catch (Exception x)
        {
            MessageBox.Show(x.Message);
            conn.Close();
        }

How can I investigate why Sql Server is chosing the “wrong” Index?

I have a Transaction table with about 200 million records, one primary key clustered on Id and 2 indexes:

  • IX_SiloId_ChangedTime_IncludeTime
  • IX_SiloId_Time_IncludeContent

I run these 2 statements before I proceed with the actual query to update statistics

Update STATISTICS dbo.(Transaction) IX_SiloId_ChangedTime_IncludeTime WITH FULLSCAN
Update STATISTICS dbo.(Transaction) IX_SiloId_Time_IncludeContent WITH FULLSCAN

This is my query:

DECLARE @Query SiloTimeQueryTableType -- (SiloId, Time) with primary key clustered on SiloId
INSERT INTO @Query VALUES 
(1, '2020-12-31'), -- 1000 total values, though it's still the same problem with just one

SELECT  t.*
FROM    (Transaction) t
INNER JOIN @Query q
    ON t.SiloId = q.SiloId
WHERE 
    t.Time >= q.Time

Now what happens is for whatever reason Sql Server choses IX_SiloId_ChangedTime_IncludeTime. It then takes forever. If I use WITH (INDEX(IX_SiloId_Time_IncludeContent)) I get the result right away.

The correct index is quite obvious here, but yet SQL Server choses the one that is not even indexed on Time.

I cannot understand this behaviour, but from what I read it is best to avoid hints for Indexes, though I made this Index with this query in mind.

So the question is: what can I do to try to figure out why SQL Server prefers the “wrong” index even though a much better one exists and I just run full statistics update?

Query plan for the forced index (here from the temp table instead of TVP to check if this changes anything as the answer suggested, the result seems to be the same):

enter image description here

Query plan without forced index:

enter image description here

https://www.brentozar.com/pastetheplan/?id=rJOt3G00P

https://www.brentozar.com/pastetheplan/?id=ByFshGAAP (this one is live, as it takes too long)

How to install OpenVPN Access Server on Kali Linux

We need to install OpenVPN Access Server on Kali Linux. Guide us for the Installation Steps.

If Open VPN Access Server can’t be installed. Suggest some VPN Access Server which can be installed on Kali Linux.

windows – Do I need a domain controller for multiple PCs accessing the same SQL server db? How do I configure it?

(more details/replicate from: https://superuser.com/questions/1612260)

Dear all,
I’m a total newbie in connecting 2 PCs and making them use the same SQL server DB from one computer … so please support me.
At home, I have 2 PCs from my company (working from home due to Covid19; I don’t have better windows images and I would prefer not changing them, or at least as possible):

PC Windows SQL server SSMS IP
1 7, version 6.1, build 7601 sp1 2014 (installation in progress) not yet 192.168.0.10
2 10, version1803, build17134.345 2017 18.1 192.168.0.105

The final goal: to have PC1 act as a db server and PC2 as a client (that can access the server’s dbs). On both PCs I will install the same application which should be able (from any PC) to update the data from PC1/the db server.

I’d been told I would need a domain controller (DC) for this scenario, but I really don’t have any clue what this means or how I should configure it:

  1. do I need a DC?
  2. is this DC something that comes with the windows images?
  3. is this DC something that comes with SQL Server?
  4. is this an application which I’ll need to install separately? (I initially thought that if I’m installing sql server on PC1, I will have to insert the windows credentials from the PC2 and this will suffice)
  5. could you please give me step-by-step on how to make this work?

Thank you!
R

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