libssh2 설치 시 libssh2.so.1.0.1 충돌

RHEL에 PHP용 ssh2를 설치하려고 합니다.

그러나 libssh2-1.4.2-2.el6.x86_64.rpm 및 libssh2-devel-1.4.2-2.el6.x86_64.rpm이 필요합니다.

그래서 다운로드해서 설치하려고 했더니 아래와 같은 오류가 뜹니다.

# rpm -ivh libssh2-1.4.2-2.el6.x86_64.rpm libssh2-devel-1.4.2-2.el6.x86_64.rpm
warning: libssh2-1.4.2-2.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 79ea5ed4: NOKEY
Preparing...                ########################################### [100%]
        file /usr/lib64/libssh2.so.1.0.1 from install of libssh2-1.4.2-2.el6.x86_64 conflicts with file from package libssh2-1.4.2-1.el6_6.1.x86_64

산출yum info libssh2

Installed Packages
Name        : libssh2
Arch        : x86_64
Version     : 1.4.2
Release     : 1.el6_6.1
Size        : 318 k
Repo        : installed
From repo   : rhel-x86_64-server-6
Summary     : A library implementing the SSH2 protocol
URL         : http://www.libssh2.org/
License     : BSD
Description : libssh2 is a library implementing the SSH2 protocol as defined by
            : Internet Drafts: SECSH-TRANS(22), SECSH-USERAUTH(25),
            : SECSH-CONNECTION(23), SECSH-ARCH(20), SECSH-FILEXFER(06)*,
            : SECSH-DHGEX(04), and SECSH-NUMBERS(10).

Available Packages
Name        : libssh2
Arch        : i686
Version     : 1.4.2
Release     : 1.el6
Size        : 124 k
Repo        : DVD
Summary     : A library implementing the SSH2 protocol
URL         : http://www.libssh2.org/
License     : BSD
Description : libssh2 is a library implementing the SSH2 protocol as defined by
            : Internet Drafts: SECSH-TRANS(22), SECSH-USERAUTH(25),
            : SECSH-CONNECTION(23), SECSH-ARCH(20), SECSH-FILEXFER(06)*,
            : SECSH-DHGEX(04), and SECSH-NUMBERS(10).

이 문제를 해결하는 데 도움을 주실 수 있나요?