SSH的简单管理

原创 于 2025-06-18 20:04:55 发布 · 2k 阅读 · 40 ·
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SSH带外管理

一、概述

ssh服务，一种远程管理连接工具，在CentOS7系统中默认安装并开机自启的。

SSH（Secure Shell）是一种安全通道协议，主要用来实现字符界面的远程登录，远程复制等功能。

监听tcp的22号端口。软件包名称：openssh

[root@localhost ~]# rpm -qi openssh
Name        : openssh
Version     : 7.4p1     #因安全问题请屏蔽版本号
Release     : 23.el7_9
Architecture: x86_64
Install Date: 2025年04月18日 星期五 16时27分58秒
Group       : Applications/Internet
Size        : 1991164
License     : BSD
Signature   : RSA/SHA256, 2023年08月08日 星期二 22时22分51秒, Key ID 24c6a8a7f4a80eb5
Source RPM  : openssh-7.4p1-23.el7_9.src.rpm
Build Date  : 2023年08月05日 星期六 00时00分53秒
Build Host  : x86-01.bsys.centos.org
Relocations : (not relocatable)
Packager    : CentOS BuildSystem <http://bugs.centos.org>
Vendor      : CentOS
URL         : http://www.openssh.com/portable.html
Summary     : An open source implementation of SSH protocol versions 1 and 2
Description :
SSH (Secure SHell) is a program for logging into and executing
commands on a remote machine. SSH is intended to replace rlogin and
rsh, and to provide secure encrypted communications between two
untrusted hosts over an insecure network. X11 connections and
arbitrary TCP/IP ports can also be forwarded over the secure channel.

OpenSSH is OpenBSD's version of the last free version of SSH, bringing
it up to date in terms of security and features.

This package includes the core files necessary for both the OpenSSH
client and server. To make this package useful, you should also
install openssh-clients, openssh-server, or both.
[root@localhost ~]# systemctl status sshd
● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
   Active: active (running) since 三 2025-06-18 17:44:13 CST; 53min ago
     Docs: man:sshd(8)
           man:sshd_config(5)
 Main PID: 1076 (sshd)
   CGroup: /system.slice/sshd.service
           └─1076 /usr/sbin/sshd -D

6月 18 17:45:52 localhost sshd[1350]: Failed password for invalid user ROOT from 192.168.198.1 port 49701 ssh2
6月 18 17:45:52 localhost sshd[1350]: pam_unix(sshd:auth): check pass; user unknown
6月 18 17:45:54 localhost sshd[1350]: Failed password for invalid user ROOT from 192.168.198.1 port 49701 ssh2
6月 18 17:45:54 localhost sshd[1350]: pam_unix(sshd:auth): check pass; user unknown
6月 18 17:45:56 localhost sshd[1350]: Failed password for invalid user ROOT from 192.168.198.1 port 49701 ssh2
6月 18 17:45:56 localhost sshd[1350]: error: maximum authentication attempts exceeded for invalid user ROOT fro...eauth]
6月 18 17:45:56 localhost sshd[1350]: Disconnecting: Too many authentication failures [preauth]
6月 18 17:45:56 localhost sshd[1350]: PAM 5 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= ....198.1
6月 18 17:46:05 localhost sshd[1352]: Address 192.168.198.1 maps to localhost, but this does not map back to th...TEMPT!
6月 18 17:46:12 localhost sshd[1352]: Accepted password for root from 192.168.198.1 port 49732 ssh2
Hint: Some lines were ellipsized, use -l to show in full.

配置文件目录：/etc/ssh，sshd_config 服务端配置文件；ssh_config 客户端配置文件。

客户端提供：ssh、scp、sftp命令

服务端提供：sftp服务、ssh服务

二、 配置文件

服务端配置文件： sshd_config


[root@localhost ~]# cat /etc/ssh/sshd_config
#       $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options override the
# default value.

# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
#Port 22                   #默认端口号
#AddressFamily any         #支持的IP地址类型
#ListenAddress 0.0.0.0     #监听IPV4地址默认为所有
#ListenAddress ::          #监听IPV6地址

HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying
#RekeyLimit default none

# Logging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV    #日志管理
#LogLevel INFO             #日志级别

# Authentication:

#LoginGraceTime 2m
#PermitRootLogin yes       #是否允许root用户登录
#StrictModes yes           #严谨模式
#MaxAuthTries 6            #最多重试次数
#MaxSessions 10            #最多10次连接

#PubkeyAuthentication yes  #公钥认证登录

# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
# but this is overridden so installations will only check .ssh/authorized_keys
AuthorizedKeysFile      .ssh/authorized_keys    #存储公钥信息的文件

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody

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

# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no     #禁止空密码登录 
PasswordAuthentication yes   #开启用户密码认证 

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

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
#KerberosUseKuserok yes

# GSSAPI options
GSSAPIAuthentication yes
GSSAPICleanupCredentials no
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no
#GSSAPIEnablek5users no

# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
# WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several
# problems.
UsePAM yes               #使用系统用户及密码认证方式(PAM)

#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes        #图形界面转发
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation sandbox
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
UseDNS no                 #DNS解析 关闭可提升ssh登录速度
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none

# no default banner path
#Banner none

# Accept locale-related environment variables
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS

# override default of no subsystems
Subsystem       sftp    /usr/libexec/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#       X11Forwarding no
#       AllowTcpForwarding no
#       PermitTTY no
#       ForceCommand cvs server

客户端配置文件： ssh_config，设置ssh命令连接的关键配置

Port 22 #设置ssh命令连接的默认端口

三、命令解析

#远程登录命令#
#语法:#
ssh [选项] [username@]ssh服务器的监听IP地址或者主机名(使用主机名时，保证客户端能够解析主机名)
#选项：#
-p port  指定连接服务器的监听端口
#远程拷贝命令#
#语法:#
#将本机的文件拷贝到远程主机#
scp  本机的文件路径  [username@]ssh服务器的监听IP地址或者主机名:/远程主机存储路径
#将远程主机的文件拷贝到本机#
scp    [username@]ssh服务器的监听IP地址或者主机名:/远程主机存储路径 本机的文件路径
#sftp服务登录命令#
sftp [选项] [username@]ssh服务器的监听IP地址或者主机名(使用主机名时，保证客户端能够解析主机名)

四、登录方式配置

1、用户名密码登录

默认方式，直接可以使用

2、公钥验证登录

密码学基础：

概念解析
对称加密双方采用相同的秘钥，安全性较低
非对称加密双方采用不同的秘钥，安全性较高
公钥大家都可以知道的秘钥。
私钥只有自己知道的秘钥。能够证明自己的身份信息

​

注意：公钥和私钥不能相互推导！！！

​

公钥与私钥之间能够相互解密！！！

数据加密：

使用对端的公钥加密，接收端收到数据后，使用自己的私钥解密。作用是保证数据完整性。

数字签名：

私用自己的私钥加密，接收端收到数据后，使用发送端的公钥解密。作用是保证发送者的身份唯一性。

ssh客户端生成密钥对

#生成密钥对的命令#
ssh-keygen ，默认是交互式
#常用选项：#
-t ： 指定秘钥算法
-N ： 指定秘钥短语
-f ： 指定秘钥存储路径
[root@s1 .ssh]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
#非交互生成密钥对#
[zhx1@s1 ~]$ ssh-keygen -t rsa -N '' -f ~/.ssh/id_rsa
#默认保存到当前执行该命令的用户家目录中的.ssh目录#
[root@s1 .ssh]# ls
id_rsa  id_rsa.pub
#id_rsa: 私钥；id_rsa.pub： 公钥#
#拷贝公钥命令#
ssh-copy-id 
#ssh命令的特殊用法：远程执行ssh服务器的指令##
[root@s1 .ssh]# ssh 192.168.115.128 ip a
#注意：不能执行ssh-copy-id命令#

四、实操展示

客户端使用user1用户，并且以服务端的用户user2的身份登录，使用公钥对验证登录。

  

[root@localhost ~]# ssh root@192.168.129.129
root@192.168.129.129's password: 
Last login: Wed Jun 18 19:57:12 2025 from 192.168.129.1
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:0c:e1:a7 brd ff:ff:ff:ff:ff:ff
    inet 192.168.129.129/24 brd 192.168.129.255 scope global noprefixroute dynamic ens33
       valid_lft 1607sec preferred_lft 1607sec
    inet6 fe80::657b:1e7b:896e:e502/64 scope link tentative noprefixroute dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d50f:4667:f3c1:2864/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
[root@localhost ~]# 
[root@localhost ~]# tcpdump -i ens33
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes
19:57:26.213887 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 1938988449:1938988645, ack 2851759186, win 251, length 196
19:57:26.216283 IP localhost.localdomain.57154 > 192.168.129.1.domain: 45319+ PTR? 1.129.168.192.in-addr.arpa. (44)
19:57:26.255998 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 196, win 250, length 0
19:57:27.995170 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 397572923:397572975, ack 4244354255, win 253, length 52
19:57:27.995335 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [.], ack 52, win 251, length 0
19:57:27.995768 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 1:53, ack 52, win 251, length 52
19:57:27.996219 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 52:136, ack 53, win 253, length 84
19:57:27.997812 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 53:125, ack 136, win 251, length 72
19:57:28.038645 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 125, win 253, length 0
19:57:28.213138 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 5965, win 255, length 0
19:57:28.213703 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 8885, win 255, length 0
19:57:28.213763 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 125:12485, ack 136, win 251, length 12360
19:57:28.213773 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 12485, win 255, length 0
19:57:28.213778 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 12485:14937, ack 136, win 251, length 2452
19:57:28.213781 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 14937, win 255, length 0
19:57:28.213783 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 136:172, ack 14937, win 255, length 36
19:57:28.254099 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [.], ack 172, win 251, length 0
19:57:28.319050 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 14937:19069, ack 172, win 251, length 4132
19:57:28.319101 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 19069, win 255, length 0
19:57:28.319110 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 19069:27297, ack 172, win 251, length 8228
19:57:28.319116 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 27297, win 255, length 0
19:57:28.319120 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 27297:29765, ack 172, win 251, length 2468
19:57:28.319567 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 29765, win 255, length 0
19:57:28.319570 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 29765:29889, ack 172, win 251, length 124
19:57:28.319571 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 29889, win 255, length 0
19:57:28.320147 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 172:208, ack 29889, win 255, length 36
19:57:28.321273 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [.], ack 208, win 251, length 0
19:57:28.321275 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 208:244, ack 29889, win 255, length 36
19:57:28.324172 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [.], ack 244, win 251, length 0
19:57:29.754698 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 244:280, ack 29889, win 255, length 36
19:57:29.754728 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [.], ack 280, win 251, length 0
19:57:29.754731 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 29889:29925, ack 280, win 251, length 36
19:57:29.797976 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 29925, win 255, length 0
19:57:30.655841 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [P.], seq 280:316, ack 29925, win 255, length 36
19:57:30.657475 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [P.], seq 3206934467:3206934551, ack 1089442151, win 271, options [nop,nop,TS val 1349103 ecr 1307212], length 84
19:57:30.657510 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [.], ack 84, win 250, options [nop,nop,TS val 1349445 ecr 1349103], length 0
19:57:30.657996 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 29925:29961, ack 316, win 251, length 36
19:57:30.707908 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 29961, win 255, length 0
19:57:30.710629 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 1:29, ack 84, win 250, options [nop,nop,TS val 1349498 ecr 1349103], length 28
19:57:30.711412 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [.], ack 29, win 271, options [nop,nop,TS val 1349158 ecr 1349498], length 0
19:57:30.711650 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [P.], seq 84:196, ack 29, win 271, options [nop,nop,TS val 1349158 ecr 1349498], length 112
19:57:30.711680 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [.], ack 196, win 250, options [nop,nop,TS val 1349499 ecr 1349158], length 0
19:57:30.724486 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 29:529, ack 196, win 250, options [nop,nop,TS val 1349512 ecr 1349158], length 500
19:57:30.765671 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [.], ack 529, win 291, options [nop,nop,TS val 1349212 ecr 1349512], length 0
19:57:30.765783 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 529:573, ack 196, win 250, options [nop,nop,TS val 1349553 ecr 1349212], length 44
19:57:30.767025 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [.], ack 573, win 291, options [nop,nop,TS val 1349213 ecr 1349553], length 0
19:57:30.767480 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [P.], seq 196:656, ack 573, win 291, options [nop,nop,TS val 1349214 ecr 1349553], length 460
19:57:30.768531 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 573:681, ack 656, win 273, options [nop,nop,TS val 1349556 ecr 1349214], length 108
19:57:30.774315 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 681:773, ack 656, win 273, options [nop,nop,TS val 1349561 ecr 1349214], length 92
19:57:30.775300 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [.], ack 773, win 291, options [nop,nop,TS val 1349222 ecr 1349556], length 0
19:57:30.775501 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 29961:30061, ack 316, win 251, length 100
19:57:30.817116 IP localhost.localdomain.ssh > 192.168.129.128.55736: Flags [P.], seq 773:857, ack 656, win 273, options [nop,nop,TS val 1349604 ecr 1349222], length 84
19:57:30.817457 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 30061, win 254, length 0
19:57:30.821912 IP 192.168.129.128.ssh > 192.168.129.1.64647: Flags [P.], seq 30061:30145, ack 316, win 251, length 84
19:57:30.864363 IP 192.168.129.128.55736 > localhost.localdomain.ssh: Flags [.], ack 857, win 291, options [nop,nop,TS val 1349307 ecr 1349604], length 0
19:57:30.864472 IP 192.168.129.1.64647 > 192.168.129.128.ssh: Flags [.], ack 30145, win 254, length 0
19:57:31.216944 IP localhost.localdomain.57154 > 192.168.129.1.domain: 45319+ PTR? 1.129.168.192.in-addr.arpa. (44)
19:57:32.631211 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [P.], seq 1:53, ack 196, win 250, length 52
19:57:32.631541 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 196:248, ack 53, win 251, length 52
19:57:32.632420 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [P.], seq 53:137, ack 248, win 250, length 84
19:57:32.633494 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 248:320, ack 137, win 251, length 72
19:57:32.675871 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 320, win 255, length 0
19:57:32.864301 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [.], seq 320:3240, ack 137, win 251, length 2920
19:57:46.240219 IP localhost.localdomain.50900 > 192.168.129.1.domain: 18847+ PTR? 128.129.168.192.in-addr.arpa. (46)
19:57:46.240640 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 61112:61516, ack 489, win 251, length 404
19:57:46.294865 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 61516, win 254, length 0
19:57:56.252751 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 92064:96196, ack 733, win 251, length 4132
19:57:56.253810 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 96196:98120, ack 733, win 251, length 1924
19:57:56.254047 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 98120:100252, ack 733, win 251, length 2132
19:57:56.254211 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 100252:100416, ack 733, win 251, length 164
19:57:56.254403 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 100416:100580, ack 733, win 251, length 164
19:57:56.254572 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 100580:100744, ack 733, win 251, length 164
19:57:56.255033 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 100744, win 255, length 0
19:57:56.255043 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 100744:101072, ack 733, win 251, length 328
19:57:56.255147 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 101072:101348, ack 733, win 251, length 276
19:57:56.255213 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 101348:101512, ack 733, win 251, length 164
19:57:56.255277 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 101512:101676, ack 733, win 251, length 164
19:57:56.255348 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 101676:101840, ack 733, win 251, length 164
19:57:56.255410 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 101840:102004, ack 733, win 251, length 164
19:57:56.255478 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102004:102168, ack 733, win 251, length 164
19:57:56.255551 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102168:102332, ack 733, win 251, length 164
19:57:56.255686 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102332:102496, ack 733, win 251, length 164
19:57:56.256062 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102496:102660, ack 733, win 251, length 164
19:57:56.256266 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 102496, win 255, length 0
19:57:56.256581 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102660:102936, ack 733, win 251, length 276
19:57:56.257012 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 102936:103100, ack 733, win 251, length 164
19:57:56.257463 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 103100:103264, ack 733, win 251, length 164
19:57:56.258090 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 103264, win 252, length 0
19:57:56.258405 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 103264:103540, ack 733, win 251, length 276
19:57:56.258839 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 103540:103704, ack 733, win 251, length 164
19:57:56.259255 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 103704:103868, ack 733, win 251, length 164
19:57:56.259700 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 103868:104032, ack 733, win 251, length 164
19:57:56.259979 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 104032, win 255, length 0
19:57:56.260261 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 104032:104308, ack 733, win 251, length 276
19:57:56.260712 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 104308:104472, ack 733, win 251, length 164
19:57:56.261185 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 104308, win 254, length 0
19:57:56.261354 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 104472:104748, ack 733, win 251, length 276
19:57:56.261518 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 104748:104912, ack 733, win 251, length 164
19:57:56.261803 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 104912:105076, ack 733, win 251, length 164
19:57:56.261877 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 104912, win 252, length 0
19:57:56.261973 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 105076:105352, ack 733, win 251, length 276
19:57:56.262110 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 105352:105516, ack 733, win 251, length 164
19:57:56.262252 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 105516:105680, ack 733, win 251, length 164
19:57:56.262543 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 105680:105844, ack 733, win 251, length 164
19:57:56.262884 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 105844:106008, ack 733, win 251, length 164
19:57:56.263036 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 106008:106172, ack 733, win 251, length 164
19:57:56.263175 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 106172:106336, ack 733, win 251, length 164
19:57:56.263310 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 106336:106500, ack 733, win 251, length 164
19:57:56.263583 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 106500:106664, ack 733, win 251, length 164
19:57:56.263907 IP 192.168.129.1.64695 > localhost.localdomain.ssh: Flags [.], ack 106664, win 255, length 0
19:57:56.264000 IP localhost.localdomain.ssh > 192.168.129.1.64695: Flags [P.], seq 106664:106940, ack 733, win 251, length 276

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