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compile net-snmp on debian lenny

[不指定 2009/09/23 16:16 | by askwan ]
net-snmp
下载地址：http://ncu.dl.sourceforge.net/project/net-snmp/net-snmp/5.4.2.1/net-snmp-5.4.2.1.tar.gz
解压然后编译，编译参数
./configure --prefix=/usr/local/net-snmp/ --with-sys-contact="askwan@askwan.com" --with-sys-location="pudong shanghai China" --enable-shared --with-default-snmp-version=2 --enable-mfd-rewrites --with-mib-modules="misc/ipfwacc mibII host disman/event-mib ucd_snmp agent_mibs agentx notification target utilities ucd-snmp/diskio tunnel mibII/mta_sendmail" --with-sysconfdir="/usr/local/net-snmp/etc/"

如编译报错：
Quotation
/usr/bin/ld: cannot find -lperl
collect2: ld returned 1 exit status

这是缺少libperl-dev开发库,安装上
apt-get install libperl-dev

然后make ;make install
可以用snmpconf配置snmpd.conf，也可用例子文件
cp  EXAMPLE.conf /usr/local/net-snmp/etc/snmpd.conf

然后根据需要修改此文件
com2sec local     localhost       askwan
com2sec mynetwork 192.168.0.0/24      askwan

group MyRWGroup v1         local
group MyRWGroup v2c        local
group MyRWGroup usm        local
group MyROGroup v1         mynetwork
group MyROGroup v2c        mynetwork
group MyROGroup usm        mynetwork

view all    included  .1                               80
access MyROGroup ""      any       noauth    exact  all    none   none
access MyRWGroup ""      any       noauth    exact  all    all    none

syslocation shanghai pu dong
syscontact Me askwan@askwan.com

启动
/usr/local/net-snmp/sbin/snmpd -Lsd -Lf /dev/null -p /var/run/snmpd.pid -a -c /usr/local/net-snmp/etc/snmpd.conf


测试
snmpwalk -c askwan -v2c 192.168.0.5 if

Quotation
IF-MIB::ifIndex.1 = INTEGER: 1
IF-MIB::ifIndex.2 = INTEGER: 2
IF-MIB::ifDescr.1 = STRING: lo
IF-MIB::ifDescr.2 = STRING: eth0
IF-MIB::ifType.1 = INTEGER: softwareLoopback(24)
IF-MIB::ifType.2 = INTEGER: ethernetCsmacd(6)
....


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"There is no public key available for the following key IDs" 问题

[不指定 2009/06/08 23:53 | by askwan ]
OS: debian 4.0 etch
此问题比较普遍 故记录之 且供参考
一般都是在apt-get update 后出错：
W: There is no public key available for the following key IDs:
9AA38DCD55BE302B
W: You may want to run apt-get update to correct these problems

按照提示 运行apt-get  update这个指令 很遗憾 无论运行多少次 都无济于事

为演示这一过程 先下apt-key指令 import当前的keys
# apt-key update
gpg: key 2D230C5F: "Debian Archive Automatic Signing Key (2006) <ftpmaster@debian.org>" not changed
gpg: key 6070D3A1: "Debian Archive Automatic Signing Key (4.0/etch) <ftpmaster@debian.org>" not changed
gpg: key ADB11277: "Etch Stable Release Key <debian-release@lists.debian.org>" not changed
gpg: key BBE55AB3: "Debian-Volatile Archive Automatic Signing Key (4.0/etch)" not changed
gpg: Total number processed: 4
gpg:              unchanged: 4


当前系统有4个keys

增加上面列出的key
gpg --keyserver wwwkeys.eu.pgp.net --recv-keys  9AA38DCD55BE302B && apt-key add /root/.gnupg/pubring.gpg

再来看看系统中的trusted gpg keys信息
# apt-key list
/etc/apt/trusted.gpg
--------------------
pub   1024D/2D230C5F 2006-01-03 [expired: 2007-02-07]
uid                  Debian Archive Automatic Signing Key (2006)

pub   1024D/6070D3A1 2006-11-20 [expires: 2009-07-01]
uid                  Debian Archive Automatic Signing Key (4.0/etch)

pub   1024D/ADB11277 2006-09-17
uid                  Etch Stable Release Key

pub   1024D/BBE55AB3 2007-03-31 [expires: 2010-03-30]
uid                  Debian-Volatile Archive Automatic Signing Key (4.0/etch)
sub   2048g/36CA98F3 2007-03-31 [expires: 2010-03-30]

pub   4096R/55BE302B 2009-01-27 [expires: 2012-12-31]
uid                  Debian Archive Automatic Signing Key (5.0/lenny)

OK 5个 最后一行正是刚才加入的
再次apt-get update 就应该没有问题了

#apt-get update
Get:1 http://security.debian.org etch/updates Release.gpg [1032B]
Hit http://security.debian.org etch/updates Release
Ign http://security.debian.org etch/updates/main Packages/DiffIndex
Ign http://security.debian.org etch/updates/contrib Packages/DiffIndex
Ign http://security.debian.org etch/updates/main Sources/DiffIndex
Ign http://security.debian.org etch/updates/contrib Sources/DiffIndex
Hit http://security.debian.org etch/updates/main Packages
Hit http://security.debian.org etch/updates/contrib Packages
Hit http://security.debian.org etch/updates/main Sources
Hit http://security.debian.org etch/updates/contrib Sources
Fetched 1B in 2s (0B/s)  
Reading package lists... Done


还有一种情况就是 key过期的问题 那么这时候可以一个个先删除系统中的key
比如
apt-key list
apt-key del 55BE302B
apt-key del BBE55AB3
...
然后删除debian-archive-keyring包
dpkg –purge debian-archive-keyring
再次重新安装
apt-get install debian-archive-keyring
基本上都能解决这个问题

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