SNMP 服务枚举
用处不大,现在服务器上都会配置只允许哪些IP访问本机的SNMP服务
snmpcheck 命令使用:
没试出来怎么用
snmpwalk 命令使用:
# 查找 FTP
snmpwalk -c public 192.168.1.99 -v 1 |grep ftp
# 查找 开放的TCP端口
snmpwalk -c public 192.168.1.99 -v 1 |grep tcpConnState|cut -d "." -f6 |sort -nu
# 扫描交换机
snmpwalk -c public 192.168.1.2 -v 2c >snmp.log
snmp.log 内容:
so.3.6.1.2.1.1.1.0 = STRING: "H3C Switch S5024PV2-EI Software Version 5.20.99, Release 1106^M
Copyright(c)2004-2015 Hangzhou H3C Tech. Co., Ltd. All rights reserved."
iso.3.6.1.2.1.1.2.0 = OID: iso.3.6.1.4.1.25506.1.927
iso.3.6.1.2.1.1.3.0 = Timeticks: (1364244768) 157 days, 21:34:07.68
iso.3.6.1.2.1.1.4.0 = STRING: "Hangzhou H3C Technologies Co., Ltd."
iso.3.6.1.2.1.1.5.0 = STRING: "H3C"
iso.3.6.1.2.1.1.6.0 = STRING: "Hangzhou, China"
.....
iso.3.6.1.2.1.3.1.1.1.30.1.192.168.1.1 = INTEGER: 30
iso.3.6.1.2.1.3.1.1.1.30.1.192.168.1.4 = INTEGER: 30
...
命令帮助:
OPTIONS:
-h, --help display this help message
-H display configuration file directives understood
-v 1|2c|3 specifies SNMP version to use
-V, --version display package version number
SNMP Version 1 or 2c specific
-c COMMUNITY set the community string
SNMP Version 3 specific
-a PROTOCOL set authentication protocol (MD5|SHA)
-A PASSPHRASE set authentication protocol pass phrase
-e ENGINE-ID set security engine ID (e.g. 800000020109840301)
-E ENGINE-ID set context engine ID (e.g. 800000020109840301)
-l LEVEL set security level (noAuthNoPriv|authNoPriv|authPriv)
-n CONTEXT set context name (e.g. bridge1)
-u USER-NAME set security name (e.g. bert)
-x PROTOCOL set privacy protocol (DES|AES)
-X PASSPHRASE set privacy protocol pass phrase
-Z BOOTS,TIME set destination engine boots/time
General communication options
-r RETRIES set the number of retries
-t TIMEOUT set the request timeout (in seconds)
Debugging
-d dump input/output packets in hexadecimal
-D[TOKEN[,...]] turn on debugging output for the specified TOKENs
(ALL gives extremely verbose debugging output)
General options
-m MIB[:...] load given list of MIBs (ALL loads everything)
-M DIR[:...] look in given list of directories for MIBs
(default: $HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/
mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp) -P MIBOPTS Toggle various defaults controlling MIB parsing:
u: allow the use of underlines in MIB symbols
c: disallow the use of "--" to terminate comments
d: save the DESCRIPTIONs of the MIB objects
e: disable errors when MIB symbols conflict
w: enable warnings when MIB symbols conflict
W: enable detailed warnings when MIB symbols conflict
R: replace MIB symbols from latest module
-O OUTOPTS Toggle various defaults controlling output display:
0: print leading 0 for single-digit hex characters
a: print all strings in ascii format
b: do not break OID indexes down
e: print enums numerically
E: escape quotes in string indices
f: print full OIDs on output
n: print OIDs numerically
q: quick print for easier parsing
Q: quick print with equal-signs
s: print only last symbolic element of OID
S: print MIB module-id plus last element
t: print timeticks unparsed as numeric integers
T: print human-readable text along with hex strings
u: print OIDs using UCD-style prefix suppression
U: don't print units
v: print values only (not OID = value)
x: print all strings in hex format
X: extended index format
-I INOPTS Toggle various defaults controlling input parsing:
b: do best/regex matching to find a MIB node
h: don't apply DISPLAY-HINTs
r: do not check values for range/type legality
R: do random access to OID labels
u: top-level OIDs must have '.' prefix (UCD-style)
s SUFFIX: Append all textual OIDs with SUFFIX before parsing
S PREFIX: Prepend all textual OIDs with PREFIX before parsing
-L LOGOPTS Toggle various defaults controlling logging:
e: log to standard error
o: log to standard output
n: don't log at all
f file: log to the specified file
s facility: log to syslog (via the specified facility)
(variants)
[EON] pri: log to standard error, output or /dev/null for level 'pri' and above
[EON] p1-p2: log to standard error, output or /dev/null for levels 'p1' to 'p2'
[FS] pri token: log to file/syslog for level 'pri' and above
[FS] p1-p2 token: log to file/syslog for levels 'p1' to 'p2'
-C APPOPTS Set various application specific behaviours:
p: print the number of variables found
i: include given OID in the search range
I: don't include the given OID, even if no results are returned
c: do not check returned OIDs are increasing
t: Display wall-clock time to complete the walk
T: Display wall-clock time to complete each request
E {OID}: End the walk at the specified OID
