linux – Creating separate SFTP accounts in LAMP Digital Ocean

I just created a preconfigured LAMB stack in Digital Ocean. I want to have different users for each internal directory. var / www / html.

Then, when the user Tom use SFTP, you will have access to var / www / html / tom
user Move will have access to var / www / html / bob.

Can anyone let me know how I can create an SFTP access with users and passwords only for these directories? (I only need 3 users with 3 directories)

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How to install wxPython on Amazon Linux?

Installation through PIP takes hours to complete. I think that PIP does not have a precompilation package and needs to compile from the source.

Is there another way to install this python package?

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Linux: I used PowerShell to change my RHEL root passwords through PuTTY, but I do not know why I changed my password

Basically the title. My friend provided me with a script to batch change RHEL passwords through Powershell and PuTTY, but the new password I entered does not work when I try to log in. I think the problem is that it does not escape one of the special characters that are in the new password, but I can not find out what the new password would have been.

The "new password" I used was similar to this: a1b2c3d "4e5f6g7

I tried to replace the secure chains with normal strings, or use telnet instead of SSH with a packet capture to determine exactly what is being sent, but none of that has worked so far.

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned
# Show a message
Write-Host "This will update the root password on Linux servers"

# Get the running directory
$ rundirectory = Split-Path $ MyInvocation.MyCommand.Path
# $ rundirectory = Split-Path $ rundirectory

# Get old root credential
$ oldrootPassword = Read host "Enter previous root password" -AsSecureString
$ oldrootCredential = new-object -typename System.Management.Automation.PSCredential -argumentlist "root", $ oldrootPassword

# Get new root credential
$ newrootPassword = Read host "Enter new root password" -AsSecureString
$ newrootCredential = new-object -typename System.Management.Automation.PSCredential -argumentlist "root", $ newrootPassword
$ newrootPassword2 = Read host "Rewrite the new root password" -AsSecureString
$ newrootCredential2 = new-object -typename System.Management.Automation.PSCredential -argumentlist "root", $ newrootPassword2

# $ gc = get-content  linuxservers.txt
Yes ($ newrootCredential.GetNetworkCredential (). Password -ceq $ newrootCredential2.GetNetworkCredential (). Password) {
$ templogfile = $ rundirectory + " Temp  log.txt"
$ tempchfile = $ rundirectory + " Temp  pwd_changes.txt"
$ log = $ rundirectory + " Logs  RHEL  Password_Changes _ $ (get-date -f MMddyyyy) .log"
$ newrootPassword = $ newrootCredential.GetNetworkCredential (). Password
$ serverlist = $ rundirectory + " linuxservers.txt"

Get-Content $ serverlist | % {
# It connects to the host and stores the SSH key in case it does not already have a
echo and | plink.exe -ssh -pw $ oldrootCredential.GetNetworkCredential (). Root password @ $ _ exit
# Open a session on the server to use in disaster recovery
putty.exe -ssh -pw $ oldrootCredential.GetNetworkCredential (). Root password @ $ _
# Add a delay to complete the login before changing the password
Start-dream -Misisecond 900
# Command sent to the host to change the password that is then registered
echo and | plink.exe -ssh -v -pw $ oldrootCredential.GetNetworkCredential (). Root password @ $ _ "echo root: & # 39; $ newrootPassword & # 39; | chpasswd" 2> & 1 >> $ templogfile
# Analyze the file and store the output in variable
$ outpt = cat $ templogfile | Selection string "Output status of the session command sent"
# Add the server name and the variable to the change file
echo `n $ _. ToUpper () `n $ outpt` n "---------------------------------- -" >> $ tempchfile
# Delete the log file to be used again in loop
Remove article $ templogfile
# Open the second PuTTY session to make sure the password works
putty.exe -ssh -pw $ newrootCredential.GetNetworkCredential (). Root password @ $ _
}
}
Else {
$ writehost = "ERROR: New root passwords do not match, leaving ..."
}

Yes ($ writehost -ceq "ERROR: New root passwords do not match, leaving ...") {
Write-Host "ERROR: New root passwords do not match, leaving ..."
}
Else {
# Place the contents of the result file in variable.
$ pwresults = cat $ tempchfile
# Add a comment at the top of the file and create a new result file
echo "Investigate all servers that do not have a command output status of 0" $ pwresults >> $ log
# Delete the change file
Remove article $ tempchfile
# Open the results file for the administrator to investigate
Call the $ log item
}

I expected the new password to be a1b2c3d "4e5f6g7; however, this does not work when logging in.

linux – OpenVPN access server – Split tunnel for selected users

I'm not sure if this is the right platform to ask. Here is my question:

I have OpenVPN Access Server 2.6.1 currently configured with split tunneling and it works fine. I have two VPN, X and Y users. I would like X to continue using the split tunnel, while user Y routes all traffic through the VPN gateway. How can I achieve that?

linux – Debian 9 PPA multiple errors, help is needed

So I am trying to install hadoop on my home Linux server, where I have found several errors when I try to update the list of packages with the apt-get update:

root @ basicserver: / home / jack # sudo apt-get update
Hit: 1 http://security.debian.org/debian-security stretch / updates InRelease
Ign: 2 http://ftp.uk.debian.org/debian stretch InRelease
Hit: 3 http://www.deb-multimedia.org stretch InRelease
Get: 4 http://ppa.launchpad.net/linuxuprising/java/ubuntu eoan InRelease [15.9 kB]
Hit: 5 http://ftp.uk.debian.org/debian stretch-updates InRelease
Hit: 6 http://ftp.uk.debian.org/debian stretch Release
Ign: 7 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu eoan InRelease
Ign: 8 http://ppa.launchpad.net/webupd8team/java/ubuntu eoan InRelease
Ign: 9 http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu eoan InRelease
Ign: 10 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu eoan Release
Ign: 11 http://ppa.launchpad.net/webupd8team/java/ubuntu eoan Release
Ign: 12 http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu eoan Release
Ign: 13 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu eoan / main all packages
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Ign: 4 http://ppa.launchpad.net/linuxuprising/java/ubuntu eoan InRelease
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Err: 21 http://ppa.launchpad.net/webupd8team/java/ubuntu eoan / main amd64 Packages
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Ign: 29 http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu eoan / main all packages
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Fetched 15.9 kB in 3 s (4,450 B / s)
Reading the lists of packages ... Done
W: The repository & # 39; http: //ppa.launchpad.net/nilarimogard/webupd8/ubuntu eoan Release & # 39; It does not have a version file.
N: Data from a repository of this type can not be authenticated and, therefore, is potentially dangerous to use.
N: See the apt-secure (8) man page for the creation of the repository and the user configuration details.
W: The repository & # 39; http: //ppa.launchpad.net/webupd8team/java/ubuntu eoan Release & # 39; It does not have a version file.
N: Data from a repository of this type can not be authenticated and, therefore, is potentially dangerous to use.
N: See the apt-secure (8) man page for the creation of the repository and the user configuration details.
W: The repository & # 39; http: //ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu eoan Release & # 39; It does not have a version file.
N: Data from a repository of this type can not be authenticated and, therefore, is potentially dangerous to use.
N: See the apt-secure (8) man page for the creation of the repository and the user configuration details.
W: GPG error: http://ppa.launchpad.net/linuxuprising/java/ubuntu eoan InRelease: The following signatures could not be verified because the public key is not available: NO_PUBKEY EA8CACC073C3DB2A
W: The repository & # 39; http: //ppa.launchpad.net/linuxuprising/java/ubuntu eoan InRelease & # 39; It is not signed.
N: Data from a repository of this type can not be authenticated and, therefore, is potentially dangerous to use.
N: See the apt-secure (8) man page for the creation of the repository and the user configuration details.
E: Error getting http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu/dists/eoan/main/binary-amd64/Packages 404 Not Found
E: Error getting http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/eoan/main/binary-amd64/Packages 404 Not Found
E: Error getting http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu/dists/eoan/main/binary-amd64/Packages 404 Not Found
E: Some index files could not be downloaded. They have been ignored, or old ones have been used instead.
root @ basicserver: / home / jack #

Thank you!

ssh: Jumbo Frame does not work on a virtual network between the Windows and Linux guests of Hyper-V

I have a problem with a lot of copying time through pscp since Windows Server 2008 r2 to the Linux host. First of all, I understand, that this is a problem, because you try to do it through the central router. What I did:
1) I moved the Hyper-V, Windows and Linux virtual machines on the same host with SSDs. Let's see the result of the copy of Lubuntu.iso. Ip from my Linux host is 192.168.15.10 in my local network
enter the description of the image here

2) How can you see, not fast. I tried to create Virtual private network in Hyper-V Host where these two virtual machines are located. I did it. I added the second interface in Windows Server 2008 r2 and in Linux. I changed MTU in both hosts. Now Windows Server 2008 r2 has additional IP: 192.168.111.2Y Linux have IP: 192.168.111.3. Let's look at ping from Windows Server 2008 r2 to Linux:

C:  images> PING 192.168.111.3 -f -l 8000

Pinging 192.168.111.3 with 8000 bytes of data:
Response of 192.168.111.3: bytes = 8000 time <1 ms TTL = 64
Response of 192.168.111.3: bytes = 8000 time <1 ms TTL = 64
Response of 192.168.111.3: bytes = 8000 time <1 ms TTL = 64
Response of 192.168.111.3: bytes = 8000 time <1 ms TTL = 64

Ping statistics for 192.168.111.3:
Packages: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip time in milliseconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

It seems that it works. Let's try to do this from Linux to Windows Server 2008 r2

[root@Linux ~]# ping 192.168.111.2 -M do -s 8000
PING 192.168.111.2 (192.168.111.2) 8000 (8028) bytes of data.
8008 bytes from 192.168.111.2: icmp_seq = 1 ttl = 128 time = 1.02 ms
8008 bytes from 192.168.111.2: icmp_seq = 2 ttl = 128 time = 0.424 ms
8008 bytes from 192.168.111.2: icmp_seq = 3 ttl = 128 time = 0.382 ms
8008 bytes from 192.168.111.2: icmp_seq = 4 ttl = 128 time = 0.420 ms
8008 bytes from 192.168.111.2: icmp_seq = 5 ttl = 128 time = 0.378 ms
8008 bytes from 192.168.111.2: icmp_seq = 6 ttl = 128 times = 0.398 ms
8008 bytes from 192.168.111.2: icmp_seq = 7 ttl = 128 time = 0.436 ms
^ C
--- 192.168.111.2 ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6608 ms
rtt min / avg / max / mdev = 0.378 / 0.494 / 1.021 / 0.216 ms

3) According to previous results, the result of the file transfer of Windows Server 2008 r2 to Linux It should be faster. Let's see WinSCP result
enter the description of the image here
As you can see, the same thing happens.

According to this topic. Could you advise me, how can I solve this?
Virtual machines in a host. If we can transfer files to Linux through another way, it would be great, but I want to understand, why does not it work? Jumbo Frames

igmp – Can a Linux client in a multicast network know the source IP?

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