Thank you again, Viktor !

make clean
make
make install

just in case and try again. After that, try to start server with debug level 6 and check log for possible errors related to encryption.

Best regards,
Victor

Command was:
sh ./configure --with-server --with-mysql --with-agent

And this is summary:

---------------------------------------------------------------------
                        Configure results
---------------------------------------------------------------------

Prefix                  : /usr/local
Build Server            : YES
Server libs            :  -lssl
Encryption enabled      : YES
Build DB-Drivers        : mysql
Build Clients          : NO
Build Agent            : YES
Subagents list          : linux
Build Static Agent      : NO
UNICODE build          : NO
Use internal libexpat  : YES
Use internal libtre    : YES
Use internal zlib      : NO
Force 32bit build      : NO
C compiler              : gcc
C++ compiler            : g++
CPPFLAGS                :  -D_THREAD_SAFE -DTRE_WCHAR=1 -I/usr/local/mysql/include -I/usr/include/mysql -I/usr/mysql/include -I/usr/local/include/mysql -I/usr/local/mysql/include/mysql -I/usr/mysql/include/mysql -D_GNU_SOURCE -I/usr/local/include -DPREFIX=\"${prefix}\" -DDATADIR=\"${pkgdatadir}\" -DBINDIR=\"${bindir}\" -DLIBDIR=\"${libdir}\" -DPKGLIBDIR=\"${pkglibdir}\"
CXXFLAGS                : -g -O2 -fno-rtti -fno-exceptions
CFLAGS                  : -g -O2
LDFLAGS                :  -L/usr/local/mysql/lib -L/usr/lib64/mysql -L/usr/lib/mysql -L/usr/mysql/lib -L/usr/local/lib/mysql -L/usr/local/mysql/lib/mysql -L/usr/mysql/lib/mysql -L/usr/local/lib
LIBS                    : -lz -ldl -lcrypto -lcrypto -lcrypto  -lpthread
MySQL libs              : -lmysqlclient

Best regards,
Victor

root@netxms:~# ldd /usr/local/bin/netxmsd
        linux-vdso.so.1 =>  (0x00007fffc1b27000)
        libnxcore.so.1 => /usr/local/lib/libnxcore.so.1 (0x00007f1a377ea000)
        libnxsrv.so.1 => /usr/local/lib/libnxsrv.so.1 (0x00007f1a375d5000)
        libnxsnmp.so.1 => /usr/local/lib/libnxsnmp.so.1 (0x00007f1a373c5000)
        libnxsl.so.1 => /usr/local/lib/libnxsl.so.1 (0x00007f1a37184000)
        libnxmap.so.1 => /usr/local/lib/libnxmap.so.1 (0x00007f1a36f7f000)
        libnxlp.so.1 => /usr/local/lib/libnxlp.so.1 (0x00007f1a36d77000)
        libnxdb.so.1 => /usr/local/lib/libnxdb.so.1 (0x00007f1a36b6d000)
        libnetxms.so.1 => /usr/local/lib/libnetxms.so.1 (0x00007f1a3693d000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f1a36725000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f1a36521000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f1a36305000)
        libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f1a35ffd000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1a35d7b000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f1a35b65000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1a357da000)
        libnxtre.so.5 => /usr/local/lib/libnxtre.so.5 (0x00007f1a355cb000)
        libnxexpat.so.1 => /usr/local/lib/libnxexpat.so.1 (0x00007f1a353a7000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f1a37b17000)

This is my Debian version:
root@netxms:~# uname -a
Linux netxms 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux

I tried desktop management console: with "Encrypt connection" turned on I receive the error "Encryption is not supported by peer".
With "Encrypt connection" turned off...I get in :)))

Should I compile with --disable-encryption ?

Thank you

Quite strange, according to config.log you've build server with encryption support. Can you please show me output of

ldd /usr/bin/netxmsd

Also, try to connect with desktop console with "Encrypt session" option turned on.

Best regards,
Victor

config.log.gz

configure:17311: checking for RSA_new in -lcrypto
configure:17336: gcc -o conftest -g -O2  -D_THREAD_SAFE -DTRE_WCHAR=1 -I/usr/local/mysql/include -I/usr/include/mysql -I/usr/mysql/include -I/usr/local/include/mysql -I/usr/local/mysql/include/mysql -I/usr/mysql/include/mysql -D_GNU_SOURCE -I/usr/local/include  -L/usr/local/mysql/lib -L/usr/lib64/mysql -L/usr/lib/mysql -L/usr/mysql/lib -L/usr/local/lib/mysql -L/usr/local/mysql/lib/mysql -L/usr/mysql/lib/mysql -L/usr/local/lib conftest.c -lcrypto   -lpthread >&5
/usr/bin/ld: cannot find -lcrypto

which means that configure cannot find libcrypto, and so server was built without encryption support. You have to install libssl-dev package and re-run configure and make.

Best regards,
Victor

And here is my config.log
https://www.dropbox.com/s/joqzra21l5sa30v/config.log

Thanks in advance,
Nikk

Best regards,
Victor

Thanks in advance,
Nikk

Best regards,
Victor

Thanks,
Nikk

Best regards,
Victor

#
# Servers
#
# List of management servers which have read access to this agent.
# Both IP addresses and DNS names can be used. Multiple servers can be
# specified in one line, separated by commas. If this parameter used more
# than once, servers listed in all occurences will have access to agent.
#
# Examples:
# Servers = 10.0.0.1
# Servers = 127.0.0.1, srv1.domain.com, srv2.domain.com

#
# ControlServers
#
# List of management servers which can execute actions on agent. Hosts
# listed in this parameter also have read access to the agent. Both
# IP addresses and DNS names can be used. Multiple servers can be specified
# in one line, separated by commas. If this parameter used more than
# once, servers listed in all occurences will have access to agent.
#
# Examples:
# ControlServers = 10.0.0.1
# ControlServers = 127.0.0.1, srv1.domain.com, srv2.domain.com

#
# MasterServers
#
# List of management servers which have full access to agent. Hosts listed
# in this group can change agent's config, upload files to agent and initiate
# agent upgrade, as well as perform any task allowed for hosts listed in
# Servers and ControlServers. Both IP addresses and DNS names can be used.
# Multiple servers can be specified in one line, separated by commas.
# If this parameter used more than once, servers listed in all occurences
# will have access to agent.
#
# Examples:
# MasterServers = 10.0.0.1
# MasterServers = 127.0.0.1, srv1.domain.com, srv2.domain.com
MasterServers = 127.0.0.1, 10.10.82.151
#
# ListenPort
#
# Defines the port number for the agent to listen on incoming connections.
# Default values is 4700
#
# Examples:
# ListenPort = 4700

#
# LogFile
#
# Agent's log file. To write log to syslog (or Event Log on Windows),
# use {syslog} as file name.
#
# Examples:
# LogFile = {syslog}
 LogFile = /var/log/nxagentd.log

#
# RequireAuthentication
#
# If set to "yes", host connected to agent have to provide correct shared
# secret before issuing any command. Default value is "no".
#
# Example:
# RequireAuthentication = no

#
# RequireEncryption
#
# If set to "yes", host connected to agent will be forced to use encryption,
# and if encryption is not supported by remote host, connection will be
# dropped. Default value is "no". This parameter has no effect if agent
# was compiled without encryption support.
#
# Example:
 RequireEncryption = yes

#
# EnabledCiphers
#
# Control what ciphers agent can use for connection encryption. Value for
# this parameter is a cipher code. To enable more than one cipher, they
# codes should be added. By default, all possible ciphers are enabled.
#
# Possible cipher codes:
# 1  =  AES-256
# 2  =  BLOWFISH
# 4  =  IDEA
#      8  =  Triple DES
#
# Example (enable AES-256 and IDEA):
# EnabledCiphers = 5

#
# SharedSecret
#
# Agent's shared secret. Used only if RequireAuthentication set to "yes".
#
# Example:
# SharedSecret = secret

#
# MaxSessions
#
# Maximum number of simultaneous communication sessions. Possible value can
# be in range from 2 to 1024. Default value is 32.
#
# Example:
# MaxSessions = 32

#
# SessionIdleTimeout
#
# Communication session's idle timeout in seconds. If agent will not receive
# any command from peer within specified timeout, session will be closed.
# Default value is 60 seconds.
#
# Example:
# SessionIdleTimeout = 60

#
# FileStore
#
# Directory to be used for storing files uploaded by installation server(s).
#
# Example:
# FileStore = /var/nxagentd

#
# TimeOut
#
# GET request timeout in seconds. If GET request cannot be completed for
# specified amount of time, agent will return an error to server.
# Default value is 5 seconds.
#
# Example:
# TimeOut = 5

#
# StartupDelay
#
# Number of seconds agent should wait on startup before start servicing
# requests. This parameter can be useful to prevent false reports about
# missing processes or failed services just after monitored system startup.
# Default value is 0, i.e. no startup delay.
#
# Example:
# StartupDelay = 0

#
# PlatformSuffix
#
# String to be added as suffix to value of System.PlatformName parameter.
#
# Example:
# PlatformSuffix = dbg

#
# EnableSubagentAutoload
#
# Enable or disable autoloading of platform subagent(s).
# Default value is "yes".
#
# Example:
# EnableSubagentAutoload = yes

#
# EnableProxy
#
# Allow requests forwarding
# Default value is "no"
#
# Example:
# EnableProxy = no

#
# EnableSNMPProxy
#
# Allow SNMP requests forwarding
# Default value is "no"
#
# Example:
# EnableSNMPProxy = no

#
# SubAgent
#
# Subagent to load. To load multiple subagents, you should use multiple
# SubAgent parameters. Subagents will be loaded in the same order as they
# appears in configuration file.
#
# UNIX example:
# SubAgent = [path_to_netxms_install_dir]/lib/libnsm_linux.so
#
# Windows example:
# SubAgent = winperf.nsm

#
# ExternalParameter
#
# Add parameter handled by external command. To add multiple parameters, you
# should use multiple ExternalParameter entries. Please note that on Windows
# agent uses system process execution API for execution of specified
# command, so you cannot use pipes or shell commands. If you need to
# execute command via shell, use ExternalParameterShellExec instead.
#
# Syntax:
# ExternalParameter = <parameter_name>:<command_line>
# If you specify parameter name as "name(*)", then you can use $1 .. $9 in
# command line to substitute actual arguments passed from server.
#
# Examples:
# ExternalParameter = Test:echo test
# ExternalParameter = LineCount(*):cat $1 | wc -l
# ExternalParameter = Test2(*):myprog $1 $2

#
# ExternalParameterShellExec
#
# Add parameter handled by external command. To add multiple parameters, you
# should use multiple ExternalParameterShellExec entries. This is similar
# to ExternalParameter with exception that agent will use shell to execute
# specified command instead of system process exeution API. This difference
# presented only on Windows system, on other systems ExternalParameter and
# ExternalParameterShellExec behaves identically.
#
# Syntax:
# ExternalParameterShellExec = <parameter_name>:<command_line>
# If you specify parameter name as "name(*)", then you can use $1 .. $9 in
# command line to substitute actual arguments passed from server.
#
# Examples:
# ExternalParameterShellExec = Test:dir c:\ | wc -l

I had OpenSSL already installed and now i set to YES, but nothing changed. Or I just don't understand how to do that!

Thanks in advance,
Nikk

Looks like you've compile server without encryption support. I recommend to recompile it with encryption (ensure that you have openssl development package installed and that encryption support set to YES in configure summary).

Best regards,
Victor