ssh connection error

vki hel pls

oksa, kosz szepen, akkor siman figyelmen kivul hagyom, az ssh szakadasokkal, meg meg mindig nemtom i a baj, van egy sejtesem hogy a squid baszakszik, de ez csak sejtes, most lelovom, es letesztelem, hatha az volt a ludas

A problemam a kovetkezo, a server mindig lezarja a kapcsolatot ssh-n keresztul randomize modon, tehat neha akar 20 percig is hasznalhatom neha meg akar 10 mp alatt megszakad. Nem tudjatok mi lehet, vagy mit nezzek meg? Hardware hibara gyanakszom , de az a fura hogy ez a server eddig mukodott normalisan, most lett frissites es azota csinalja ezt.

Az /etc/ssh/sshd_config file tartalma:
[code:1:de273910ca]# Package generated configuration file
# See the sshd(8) manpage for details

# What ports, IPs and protocols we listen for
Port 22
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 1,2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes

# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 768

# Logging
SyslogFacility AUTH
LogLevel INFO

# Authentication:
LoginGraceTime 60
PermitRootLogin yes
StrictModes yes

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile %h/.ssh/authorized_keys

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no

# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes

# Change to yes to enable tunnelled clear text passwords
PasswordAuthentication no

# To change Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#AFSTokenPassing no
#KerberosTicketCleanup no

# Kerberos TGT Passing does only work with the AFS kaserver
#KerberosTgtPassing yes

X11Forwarding no
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
KeepAlive yes
#UseLogin no

#MaxStartups 10:30:60
#Banner /etc/issue.net

Subsystem sftp /usr/lib/sftp-server

UsePAM yes
GatewayPorts yes
AllowTcpForwarding yes
[/code:1:de273910ca]

Az auth.log tartalma:
[code:1:de273910ca]Nov 5 14:36:47 balassa sshd[31244]: reverse mapping checking getaddrinfo for pc5.sas.nextra.hu failed - POSSIBLE BREAKIN ATTEMPT!
Nov 5 14:36:52 balassa sshd[31244]: Accepted keyboard-interactive/pam for root from ::ffff:213.134.15.86 port 1526 ssh2
Nov 5 14:36:52 balassa sshd[31247]: (pam_unix) session opened for user root by root(uid=0)
Nov 5 14:39:01 balassa CRON[31339]: (pam_unix) session opened for user root by (uid=0)
Nov 5 14:39:01 balassa CRON[31339]: (pam_unix) session closed for user root
[/code:1:de273910ca]

Nov 5 14:39:01 balassa CRON[31339]: (pam_unix) session closed for user root
ez nem az hogy bearta a kapcsolatot?
Amugy nemtod mit csinaljak akkor vele hogy ne vacakoljon egyaltalan?

Nyah megcsinaltam miat mondtal es mostmar nem ir ki hulyesegeket a logba, de ugyanugy megszakad neha a kapcsolat. SSH tunellezek a serverre hogy hasznaljam a sajat proxym es a BNC-m, es ugy tunik akkor szakad meg amikor nagyobb mennyisegu adat jon/megy at ssh-n(nem biztos csak sejtes). Nincs vmi 5letetek miert lehet?

Hja es meg mi, vk ibe akar torni a serverre, eleg erdekes modszerrel, mar 1 hete probalgatja a user neveket. LOG: [code:1:224d1c24ce]
Nov 8 09:53:10 balassa sshd[9751]: Illegal user postgres from ::ffff:68.23.0.242
Nov 8 09:53:29 balassa sshd[9781]: Illegal user dragon from ::ffff:68.23.0.242
Nov 8 09:53:32 balassa sshd[9787]: Illegal user tomcat from ::ffff:68.23.0.242
[/code:1:224d1c24ce]
Ezzel mit csinaljak? Vagy erdemes egyaltalan foglalkozni vele? A jelszot tuti nem talalja ki probalgatos modszerrel.

Nyah senki semmit?