boina-n

LineSwitch5510
-------------------
Model : Ethernet Routing Switch 5510-48T

Most important things to check on switch's are : 
	* port description nor reason to make sure you working on the right port
	* port vlan's to add or remove a port
	* port state and status { status is what have been forced by the user }
	* port speed, make sure you're not confusing the current port speed and  supported speed
	*

boina-n

ex : config ethernet 2/1 info

ex : config ethernet 2/2 info


ex : config vlan 1 info

ex : show tech

boina-n

INFORMATION

	Link state 			: 	show port 6 info [detail]

	Activation			:	

	Port Name			:

	Auto Négoc.			:

boina-n

cat << EOF > /etc/yum.repos.d/centos-base.repo
[base]
name=CentOS-5 - Base
baseurl=http://mirror.centos.org/centos/5/os/\$basearch/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[updates]
name=CentOS-5 - Updates
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=\$basearch&repo=updates

boina-n

cat << EOF > /etc/yum.repos.d/centos-base.repo
[base]
name=CentOS-6 - Base
baseurl=http://mirror.centos.org/centos/6/os/\$basearch/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
[updates]
name=CentOS-6 - Updates
mirrorlist=http://mirrorlist.centos.org/?release=6&arch=\$basearch&repo=updates

boina-n

#  1.  `cd /usr/src'       (or to the directory containing your source tree).
#  2.  `make buildworld'
#  3.  `make buildkernel KERNCONF=YOUR_KERNEL_HERE'     (default is GENERIC).
#  4.  `make installkernel KERNCONF=YOUR_KERNEL_HERE'   (default is GENERIC).
#       [steps 3. & 4. can be combined by using the "kernel" target]
#  5.  `reboot'        (in single user mode: boot -s from the loader prompt).
#  6.  `mergemaster -p'
#  7.  `make installworld'
#  8.  `make delete-old'
#  9.  `mergemaster'            (you may wish to use -i, along with -U or -F).

boina-n

Analyse de flux sur un firewall Juniper SSG-550
peut s'avérer utilse lors d'un trouble shooting.
Malheureusement l'équipement ne permet pas de capture en live.
Il sera stocké dans le cache.


#Commencer par supprimer les filtres si il y en a
Internet-FW-> get ffilter
id:0 src ip 8.8.8.8
id:1 src ip 4.4.4.4

boina-n

Analyse de flux

vérifier la version de l'OS.
/info/sys/general
>>	Software Version 29.0.2.0 (FLASH image2), active configuration.

Les chaines de filtrage sont les mêmes que se de tcpdump, en réalité c'est le module pcap-filter utilisé comme pour tcpdump qui est utilisé pour traduire les commandes.
La première option ' -l ' permet de visualiser les trames en temps réel autrement vous pouvez les stocker sous un fichier pcap et les exploiter avec un logiciel tiers (ex WireShark).

quelques exemples:

boina-n

$ wc -l ok.cleaning_center.pcap.20151201.19h01m17s-1448992877.645994-1448992920.921620.v.1.txt
8994730 ok.cleaning_center.pcap.20151201.19h01m17s-1448992877.645994-1448992920.921620.v.1.txt

From resperf source: https://github.com/cobblau/dnsperf
    static char *qtypes[] = {"A", "NS", "MD", "MF", "CNAME", "SOA", "MB", "MG",
        "MR", "NULL", "WKS", "PTR", "HINFO", "MINFO", "MX", "TXT",
        "AAAA", "SRV", "NAPTR", "A6", "AXFR", "MAILB", "MAILA", "*", "ANY"};
		
		
		

boina-n

Interface DE : 172.16.1.[1-63] 
ifconfig |grep -B3 172.16


# Depuis le serveur DNS
dif=bond1
dip=$(ip addr show dev $dif | egrep -o '(addr:)?([0-9]*\.){3}[0-9]*' | head -n1)
dmac=$(ip link show dev $dif | egrep -o '(link/ether:)?([0-9a-f]{2}\:){5}[0-9a-f]{2}' |head -n1)
echo -e "dmac=$dmac \ndip=$dip"