Merhaba,
Linux Centos 6.x vds ye npm kurdum ve Express kurmam gerek ama kurarken hata veriyor anlayan arkadaşlar var mı ,

[root@linux ~]# npm install -g express-generator
npm http GET https://registry.npmjs.org/express-generator
npm http GET https://registry.npmjs.org/express-generator
npm http GET https://registry.npmjs.org/express-generator
npm ERR! Error: CERT_UNTRUSTED
npm ERR!     at SecurePair.<anonymous> (tls.js:1283:32)
npm ERR!     at SecurePair.EventEmitter.emit (events.js:92:17)
npm ERR!     at SecurePair.maybeInitFinished (tls.js:896:10)
npm ERR!     at CleartextStream.read [as _read] (tls.js:430:15)
npm ERR!     at CleartextStream.Readable.read (_stream_readable.js:294:10)
npm ERR!     at EncryptedStream.write [as _write] (tls.js:344:25)
npm ERR!     at doWrite (_stream_writable.js:211:10)
npm ERR!     at writeOrBuffer (_stream_writable.js:201:5)
npm ERR!     at EncryptedStream.Writable.write (_stream_writable.js:172:11)
npm ERR!     at write (_stream_readable.js:547:24)
npm ERR! If you need help, you may report this log at:
npm ERR!     <http://github.com/isaacs/npm/issues>
npm ERR! or email it to:
npm ERR!     <npm-@googlegroups.com>

npm ERR! System Linux 2.6.32-696.el6.x86_64
npm ERR! command "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "express-generator"
npm ERR! cwd /root
npm ERR! node -v v0.10.4
npm ERR! npm -v 1.2.18
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     /root/npm-debug.log
npm ERR! not ok code 0