TCP Flow Mean

This information maybe useful for you,i've got it from the internet, it's about TCP Flow mean :
CLOSED ---- Closed. The socket is not being used.
LISTEN ---- Listening for incoming connections.
SYN_SENT ---- Actively trying to establish connection.
SYN_RECEIVED ---- Initial synchronization of the connection under way.
ESTABLISHED ---- Connection has been established.
CLOSE_WAIT ---- Remote shut down; waiting for the socket to close.
FIN_WAIT_1 ---- Socket closed; shutting down connection.
CLOSING ---- Closed, then remote shutdown; awaiting acknowledgement.
LAST_ACK ---- Remote shut down, then closed ;awaiting acknowledgement.
FIN_WAIT_2 ---- Socket closed; waiting for shutdown from remote.
TIME_WAIT ---- Wait after close for remote shutdown retransmission.

Comments

Post a Comment

Popular posts from this blog

OSS RC : learning by doing (new beginning)

CIF Self Management: #/opt/ericsson/nms_cif_sm/bin/smtool [option] [MC] Option [stop|start|online|offline|coldrestart|warmrestart|cancel|config|help|exit] i.e : #./smtool online Activity Manager, #./smtool –list Log : Log [-print] [-type error|event|command|nwstat|security] [-number number] [-host host] [-filter filterfile[:number]] i.e #/opt/ericsson/nms_cif_sm/bin/log –type error –number 10 |more #./log –filter myfilterfile.txt:2 (means: second row of myfilterfile.txt as filter criteria) See errors as they come in, use: #/opt/ericsson/nms_cif_sm/bin/newLogRecordsViewer.sh Openfusion #cd /opt/inprise/openfusion/bin/ Environment file: # ls –la .javaenv Check version: #./version Start manager: #./manager Log is on duty: administrative state is unlocked Log will never become full : wrap Log full: halt (until persistent storage is exhausted) Err&system log: #/opt/inprise/openfusion/domains/OpenFusion/loca...
Read more

Link sudoers in linux (centos7) with Active Directory group

Image
Assignment: create Active Directory group for linux administrator who need a root privilege (sudo su) with no password required. 1. Create linuxadm group at Active Directory server with group type: security. 2. Add Active Directory user account into linuxadm group (e.g bruce wayne). 3. Add Active Directory group into sudoers profile (/etc/sudoers) using visudo on linux server. [root@labnfs ~]# visudo %BATMAN.LOCAL\\linuxadm         ALL=(ALL)       NOPASSWD: ALL 4.  check UID  before/after run "sudo su" on Linux server using Active Directory user account to confirm it. aghiel@aghiel-mbproi9 ~ % ssh bruce@labnfs bruce@labnfs's password:  [bruce@labnfs ~]$  [bruce@labnfs ~]$ id uid=215401106(bruce) gid=215400513(domain users) groups=215400513(domain users),215401120(linuxadm) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 [bruce@labnfs ~]$ sudo su [root@labnfs bruce]# id uid=0(root) gid=0(root) groups=0(root) contex...
Read more

RSYNC via SSH on solaris 10

How to use rsync via ssh on solaris 10: 1. install rsync package on both (server & client) and follow the instruction : # pkgadd -d rsync-2.6.9-sol10-sparc-local (sparc) #pkgadd -d rsync-3.0.7-sol10-x86-local (x86) don't forget to install libcap also if it doesn't exist on servers (#pkginfo |grep -i libcap) : #pkgadd -d libpcap-1.1.1-sol10-sparc-local (sparc) #pkgadd -d libpcap-1.1.1-sol10-x86-local (x86) Voila! you have rsync package installed!: -bash-3.00$ which rsync /usr/local/bin/rsync -bash-3.00$ which ssh/usr/bin/ssh 2. to check whether it is worked using ssh or not : #rsync -avn -e ssh --rsync-path=/usr/local/bin/rsync remoteuser@remotehost:/dirtobecopied/ /localdir/destination 3. to try synchronize the data with option Z (compressed using gzip) : #rsync -avz -e ssh --rsync-path=/usr/local/bin/rsync remoteuser@remotehost:/dirtobecopied/ /localdir/destination 4. to limit transfer speed/bandwidth (e.g 1MBps): #rsync -avz --bwlimit=1024 --rsync-path=/usr/local/bin/rs...
Read more