#StackBounty: #ubuntu #debian #kvm-virtualization #telnet #proxmox Can't telnet a server from vps

Bounty: 50

i try to understand why i can’t telnet this server 213.132.48.107 from any of my VPSs.
Well this ip is for a mail server i don’t own but our emails are not received by this server. when i checked the log i saw this error:

554 5.7.1 You are not allowed to connect.
Connection closed by foreign host.

I thought i’m in black list so i tried to telnet to that server from all my VPSs (7 VPSs) and always get the same error.

telnet 213.132.48.107 25
Trying 213.132.48.107...
Connected to 213.132.48.107.
Escape character is '^]'.
554 5.7.1 You are not allowed to connect.

But when i try from a dedicate server i can telnet.

Please help me

My VPSs run debian/ubuntu/centos and all created created by proxmox


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#StackBounty: #ubuntu #debian #kvm-virtualization #telnet #proxmox Can't telnet a server from vps

Bounty: 50

i try to understand why i can’t telnet this server 213.132.48.107 from any of my VPSs.
Well this ip is for a mail server i don’t own but our emails are not received by this server. when i checked the log i saw this error:

554 5.7.1 You are not allowed to connect.
Connection closed by foreign host.

I thought i’m in black list so i tried to telnet to that server from all my VPSs (7 VPSs) and always get the same error.

telnet 213.132.48.107 25
Trying 213.132.48.107...
Connected to 213.132.48.107.
Escape character is '^]'.
554 5.7.1 You are not allowed to connect.

But when i try from a dedicate server i can telnet.

Please help me

My VPSs run debian/ubuntu/centos and all created created by proxmox


Get this bounty!!!

#StackBounty: #ubuntu #debian #kvm-virtualization #telnet #proxmox Can't telnet a server from vps

Bounty: 50

i try to understand why i can’t telnet this server 213.132.48.107 from any of my VPSs.
Well this ip is for a mail server i don’t own but our emails are not received by this server. when i checked the log i saw this error:

554 5.7.1 You are not allowed to connect.
Connection closed by foreign host.

I thought i’m in black list so i tried to telnet to that server from all my VPSs (7 VPSs) and always get the same error.

telnet 213.132.48.107 25
Trying 213.132.48.107...
Connected to 213.132.48.107.
Escape character is '^]'.
554 5.7.1 You are not allowed to connect.

But when i try from a dedicate server i can telnet.

Please help me

My VPSs run debian/ubuntu/centos and all created created by proxmox


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#StackBounty: #mysql #debian #debian-stretch mysql in debian stretch

Bounty: 300

Debian Stretch will likely be released in the middle of this year.

mysql-server-5.x will no longer be available and is replaced with mariadb-server-10.1. i don’t feel i’m ready for the big step and moving to MariaDB, i’d prefer to stay with mysql 5.6 or – even better – 5.7. what would you recommend – using 5.7 from debian’s unstable repository? going with the oracle-provided packages? some other options?

thanks!


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#StackBounty: #debian #firefox #crunchbang #mp3 #bunsenlabs Playing MP3 in Firefox on Debian

Bounty: 50

Is there a way to get MP3 playback within Firefox 31+ without installing plugins? I know about the entire encoding issues, but I have read somewhere that Firefox will look for native OS encoders like LAME to add support for audio HTML5 tags.

What is the best way to add MP3 support for Firefox 31+ on Debian 7/Crunchbang?


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#StackBounty: #debian #performance #java Bad performance with Java

Bounty: 50

I have a computer that was running Windows with a lot of big programas (like Adobe Fireworks, and many other stuff) and the computer performance was really good. I decided to format my computer (I didn’t need all this programs because this computer had a different owner) and I installed Debian 8 Jessie (stable).

But since the first fresh installation, every program that needs Java to run (like NetBeans, Google Chrome, Atom (advanced text editor) or anyone) it starts consuming CPU progressively (checked via top command) until I have to reboot manually through the button (the computer is unusable, I can’t open the menu and click on Power off).

I tried using different versions of Java (7 and 8) but nothing worked. Java 7 is installed through the official repositories and version-8 through Oracle downloads official site.

Any word of advice?

EDIT 1: Java version information

lrwxrwxrwx   1 root root    24 May  6  2014 default-java -> java-1.7.0-openjdk-amd64
lrwxrwxrwx   1 root root    20 Nov  7 01:58 java-1.7.0-openjdk-amd64 -> java-7-openjdk-amd64
-rw-r--r--   1 root root  2439 Feb  7 21:22 .java-1.7.0-openjdk-amd64.jinfo
drwxr-xr-x   5 root root  4096 Jan 11 18:54 java-6-openjdk-amd64
drwxr-xr-x   8 root root  4096 Feb 21 11:10 java-7-openjdk-amd64
drwxr-xr-x   9 root root  4096 Feb  3 08:56 jdk-8-oracle-x64
-rw-r--r--   1 root root  2531 Feb  2 10:16 .jdk-8-oracle-x64.jinfo
drwxr-xr-x   2 root root  4096 Feb 21 11:12 openjdk-7

Edit 2: Java performance
Also I’ve noticed via top command that Java process also consumes a lot of CPU (more than 200%).


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#StackBounty: #linux #debian #logrotate Why the logrotate's bin path is `/usr/sbin`

Bounty: 50

Why is the logrotate’s bin path /usr/sbin on Debian (at least “wheezy”)
knowing that we can actually use it without the root privilege?


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#StackBounty: #networking #debian #amazon-ec2 #sysstat Debian "sar -n DEV 1 1" is super slow

Bounty: 50

On all of my machines I’m using sar (sysstat) to get the current network bandwidth using sar -n DEV 1 1 that I parse out later, but on one of my machines this command no longer gives its output in 1 second like the other machines and takes more like 20-30 seconds. How do I debug what is happening here?


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